Monday, September 22, 2025

Race Report: Buenos Aires Marathon

Two and a half years ago, I traveled to Antarctica with Marathon Tours & Travel.  Our itinerary included three days in Buenos Aires before flying to Ushuaia to board our ship.  I ran a marathon in Antarctica, but I didn’t run a marathon during my time in Argentina.

Six months ago, a friend of mine did that same trip to run the Antarctica Marathon.  When I saw her photos from Buenos Aires, it reminded me how much I liked that city.  That was the motivation I needed to go back to Buenos Aires to run a marathon there.

Before I could register for the race, I needed to get a medical certificate signed by my doctor.  I’ve done other marathons in countries that required a medical certificate, but you didn’t need to provide the certificate until packet pickup.  In Argentina, you need to upload a copy of your medical certificate as part of the registration process.  I checked to see how soon I could get a doctor appointment.  As luck would have it, I was able to get an appointment that same day.

When I was here with Marathon Tours & Travel, we stayed at a hotel in the Puerto Madero waterfront area.  I loved that neighborhood, but hotels there are expensive.  Also, it’s a long distance from where the marathon starts and finishes.  This time, I stayed at a hotel that was outside that neighborhood, but still close enough that I could easily walk there.  I was a little closer to where the race starts, and the rate was much more affordable.

Thursday, September 18

When I fly overseas for a race, I usually arrive at least three days before the race.  For a Sunday race, I’ll typically leave on Wednesday and arrive on Thursday.  Since I had been to Buenos Aires before, I decided to leave on Thursday instead.  That would give me enough time, provided I didn’t have any major flight delays.  Naturally, I did.

I was on my flight to Atlanta when I found out that my flight from Atlanta to Buenos Aires was going to be delayed.  It was originally scheduled to depart at 11:00 PM.  When I got to Atlanta, they were saying it wouldn’t leave until 12:30 AM.  Later, they pushed it back to 1:55 AM.  After I had been waiting in the Atlanta airport for three hours, they finally announced that the flight wouldn’t leave until 8:00 AM Friday morning.  It would’ve been nice to know that a few hours earlier.

I checked into a hotel for the night, but I didn’t get there until midnight.  I tried to get to sleep, but I was too wound up to relax.  I had been avoiding caffeine since leaving Minneapolis, but I still felt like I had 10 cups of coffee.

Friday, September 19

I kept trying to sleep until 4:30.  Then I had to get up to get back to the airport.  I wanted to allow plenty of time to get through security.  It can take much longer in Atlanta than it does in Minneapolis.

When I tried to go through security, I had a new problem.  TSA wouldn’t let me through, because my boarding pass had the wrong date.  I went to the Delta counter, where they told me my boarding pass was good, but I couldn’t use TSA pre-check.  They said I would need to use the general boarding lane.  I have Clear, so I asked if there was a lane for Clear without pre-check, and if I could use that lane.   There was, and I could, but it was on the other side of the terminal.  I eventually got through using that lane.

While I was eating breakfast in the airport, I learned that my flight was delayed another hour to 9:00.  I didn’t know why it kept getting delayed, so I had to wonder if there would be more delays.  Sure enough, they delayed it 9:40 AM, then 11:00 AM, then noon, then 12:30, then 1:00, and finally 1:46.  They were nickel and diming me to death.  If I knew the full extent of the delay sooner, I wouldn’t have needed to get to the airport so early.  Instead, I got no sleep, and I was waiting in the airport for hours, seemingly without end.

After we finally boarded, the pilot announced that the weather along our route had changed since the cargo was loaded, and they would need to rearrange the cargo to distribute the weight differently.  He said it would take 15-20 minutes.  It took two hours!  When we finally pulled away form the gate, we were 17 hours behind schedule.  I spent most of that time at the airport, and I didn’t get any sleep.

I rarely try to sleep on flights, but I knew I wouldn’t have much time to sleep when I got to my hotel, so I was desperate.  As soon as the meal service was done, I tried to get to sleep.

I was about as comfortable as I’ve ever been while trying to sleep on an airplane, but it took almost six hours to fall asleep.  We had turbulence for most of the flight, and the bumpy ride made falling asleep almost impossible.  Later in the flight, things smoothed out a bit, and I got a brief nap.

I was originally scheduled to arrive in Buenos Aires at 9:45 AM on Friday.  Because of all the delays, I didn’t get there until 2:45 AM on Saturday.

Saturday, September 20

I had a bad experience with a taxi the last time I traveled to South America, so this time I booked an airport transfer before I arrived.  That was before I knew about the flight delays.  I had to contact the taxi company more than once to let them know my flight was delayed.  It took about 30 minutes to get through the line for passport control, but when I was done, I spotted my driver.

It took about an hour to get to my hotel.  I had contacted the hotel before my flight to let them know I would be arriving late.  I also asked them to have the temperature turned down in my room.  When I got there, my room was nice and cold.  I immediately climbed into bed to take a nap.

It took me about an hour to get to sleep.  I got enough of a nap to be able to function.  Then I had breakfast.

I lost a whole day, so everything I was planning to do on Friday got pushed to Saturday instead.  That included packet pickup for the marathon.  The earliest I could do that on Saturday was 10:00.  In the meantime, I did a workout in the fitness room.

Packet pickup was held in a park that was on the other side of the city.  I could get most of the way there on the Subte (subway), but I had to walk the last mile.

To pick up my race packet, I needed my passport and a QR code that they emailed to me.  I didn’t know if I would need my medical certificate, but I brought it just in case.

The race shirt was a tank top, which is always nice, since I don’t get as many of those.  Besides my race bib and shirt, my race packet included several product samples.  Some were useful, such as protein bars and other food.  Others were not so useful, like a half-liter bottle of mouthwash.  One interesting item was a package of maté, which is an Argentine herbal drink that has its own subculture.


It took me an hour to get to the park and another hour to get back.  When I got back, it was lunchtime, but I decided to skip lunch in favor of going for a run and then having an early dinner.  Ideally, I would’ve run on Friday and rested Saturday, but I spent Friday in an airport and on a plane.

From my hotel, I ran through Puerto Madero to reach an ecological reserve that has some trails.  That’s the same place where I went for runs the first time I visited Buenos Aires.  I was hoping to run a trail loop, but the reserve was closed.  Instead, I ran out and back on a wide sidewalk that’s adjacent to the reserve.

I wanted to get to bed early, so I had an early dinner.  In Argentina, people often don’t eat dinner until 9:00.  Restaurants often don’t open until 7:30.  I knew there were restaurants in Puerto Madero that are open all afternoon, so that’s where I went for dinner.  Argentina has a large Italian minority, so it wasn’t hard to find a restaurant with pizza.

I’m happy to say I slept well that night.  I really needed that after getting so little sleep the previous two nights.

Sunday, September 21

Sunday was race day.  The race started at 7:00 AM.  The only negative about my hotel is that it was four miles from where the race starts.  Buenos Aires has good public transportation, but race morning was problematic.  The subway system doesn’t operate that early on a Sunday morning.  There’s a bus route that goes right there, but I didn’t know if that route would be affected by road closures.  Without knowing for sure if the bus would be running, I decided to just walk.  I had to leave early, but my route was fairly direct.

I left the hotel at 5:00.  It was still dark, but I was following streets that were well-lit.  Leaving that early gave me enough time that I could walk at a casual pace and still get to the start area with plenty of time to make it through the bathroom lines.  Along the way, I passed a few landmarks.

With about a mile to go, I started to see other runners who were walking or running to the start area.  I saw two runners getting out of a taxi.  I assume the driver got them as close as he could, but couldn’t go all the way because of road closures.

After making a bathroom stop, I tried to figure out where the start corrals were.  The start area was huge, and there wasn’t any signage.  I never saw a map of the start area on the race website, so I just had to find my way around.

When I spotted the starting line, I was on the wrong side of it.  There were barricades on both sides of the street, so I had to take a circuitous route to get to the entrance to the start corrals.  Making matters worse, it had rained during the night, so I had to detour around several large puddles.

I never walked through a puddle, but I did a lot of walking on wet grass.  By the time I found the entrance to my corral, my shoes and socks were wet.

Shortly after I entered my corral, my watch informed me that I had reached its arbitrary goal of 10,000 steps.  That’s a lot of walking to do before the race even starts.

I was in corral F, which was for runners with estimated finish times between 3:46 and 4:00.  I was puzzled when I saw a runner at the back of corral E with a sign that read, “5.30.”  I assumed he was the leader of a pace group, but if his target time was 5:30, he shouldn’t have been in corral E.

Then I wondered if 5:30 was the time limit, and he was the sweeper.  If that was the case, he should have been in the last corral.  He eventually moved to the front of corral F, but that still didn’t make sense.

Sometimes when I run in a foreign country, I experience a different pre-race ritual.  As we were waiting for the race to start, I saw a large sheet passing over the runners in front of me.  As it reached us, we each reached up and grabbed it to help pull it back.  Then, as it passed over us, we kept our arms extended, so it glided over our fingertips.

This sheet was as wide as the street, and it was more than a block long.  It took so long to pass over us, that it may have been two blocks long.  It was divided into three stripes of equal width.  The outer two stripes were light blue and the middle stripe was while.  Those are the colors of Argentina’s flag.

When the elite runners started, I heard a loud cheer.  I was so far from the starting line that I couldn’t even see it.  It would be several minutes before my corral started.

Before my corral started, I started to feel a fine drizzle.  The temperature was in the 50s, but I opted to wear tights, knowing it would be windy.  With the drizzle, I felt more confident in that decision.  I also put my gloves on.

In front of each corral, there were two lines of volunteers holding hands to create a barrier across the road.  They waited until the corral in front of them had started before they let the next corral move up.  Then they brought us forward slowly, ensuring a stagger of at least a minute between corrals.  By the time my corral was allowed to cross the starting line, seven or eight minutes had already elapsed since the first runners started.

I was near the front of my corral.  As soon as I crossed the starting line, I was able to run at my own pace.  The stagger between corrals was sufficient to give us plenty of space to run.

At first, the runners around me were all going at the same pace.  Eventually, we caught up to runners from the back of corral E, even though they started at least a minute ahead of us.  Now, I had to start passing people, but it wasn’t that difficult to get around them.

This is a huge race, but we were starting on a road that was six lanes wide.  The stagger between corral starts was enough to ensure that we got spread out a bit before we caught up to the corral in front of us.  Most of the people in that corral were faster, but not everyone starts at the same pace, and some people start in a corral that’s too fast for them.  A certain amount of congestion is inevitable, but we weren’t packed in like sardines.

I felt like I might be starting fast, but I didn’t know for sure until I got a split from my watch.  I ran the first mile in 8:37.  That was fast, but not crazy fast.

As we got mixed in with runners from other corrals, I had to run at my own pace and not at the pace of the runners right in front of me.  In the first few miles, I did a good job of that.  My next two splits were 8:38 and 8:37.

At 5K, we reached the first hydration station.  This one just had water, and it was in bottles.  I grabbed a bottle, removed the cap, and drank about half of it.  It was a large bottle, and I couldn’t drink that much at once.  When I couldn’t drink any more, I tossed the bottle to the side of a road, where I saw a volunteer collecting the discarded bottles in a trash bag.

My next mile was a little slower.  I attributed that mostly to slowing down at the aid station.

The next time I reached an aid station, they had Gatorade in paper cups.  That station didn’t have any water.  Drinking a cup of Gatorade was easier, but that mile was slower than the previous one.

My pace was getting erratic.  The runners around me were still going at different paces.  How fast I ran in any particular mile seemed to depend on who I was following and how fast they were going.  I was no longer doing a good job of running at my own pace.  After running mile five in 8:59, I sped up to 8:23 in mile six.  The scary thing is that my pace felt about the same in both of those miles.

At 10K, there was another aid station with water bottles.  I decided to skip that one.  The aid stations were frequent enough that I didn’t need to drink at all of them.

I eventually noticed a pattern.  Every 5K, they had a water station.  Halfway between those they had Gatorade stations.  For most of the race, I only drank at the Gatorade stations.

We started out running west, but we eventually looped back and returned to the same park where we started.  This time, we were on the other side of a divided street.

By now, the drizzle had stopped.  I briefly saw the sun come out, but it wasn’t long before it was overcast again.  Thankfully, the drizzle never returned.

More than half of the runners were wearing their green race shirts.  At times, the runners in front of me looked like a sea of green.  I can’t say or even think “sea of green” without getting the song “Yellow Submarine” in my head.  It didn’t stay there for long.  Shortly after passing through the start/finish area, I heard a large sound system blasting “Don’t Stop Me Now” by Queen.  If you know me well, you know I sped up in that mile.

We occasionally passed major landmarks of the city.  I had my phone with me, so I could’ve taken pictures, but I didn’t want to stop or slow down.  I started at a fast pace, and I wanted to keep that going.

As we were approaching 17K, I started to see large office buildings ahead of us.  I thought we were heading into the downtown area, but then we turned.

Right after turning, we started up a hill.  This course is mostly flat.  Up until now, the only hill was the ramp leading up to a bridge.  The hill in front of me wasn’t steep, but it was long enough that I had to be careful not to tire myself out.  I kept running with the same effort.  I didn’t worry if that mile was a little slower.

After the hill, I spotted the obelisk, which is another major landmark.  As we reached the obelisk, we turned right.  Then we had a nice downhill.

At 20K, we reached another water station, but they also had bananas.  As soon as I noticed that, I moved to the other side of the street.  The last thing I wanted was to step on a banana peel.  It was bad enough that some runners were dropping water bottles in the middle of the street.

After a couple more turns, we were running toward the obelisk again, but from a different direction.  This was an out-and-back section.  We ran toward the obelisk, but before we reached it, we made a U-turn.

Along this street, there were people in the crowd in all kinds of colorful costumes.  One guy was on stilts.  There was a whole group dressed in yellow from head to toe and twirling yellow flags.

Shortly after the turnaround, I spotted the guy with the “5.30” sign.  He was only a minute or two behind me.  If he was a sweeper or someone with a target time of “5:30,” he shouldn’t be just a minute behind me.  I was on pace for a time well under four hours.

Then it dawned on me that 5:30 might be a pace rather than a target time.  I didn’t go the math precisely, but it occurred that a pace of 5:30 per kilometer would work out to roughly 8:40 per mile.  That was pretty close to my pace.

I got a split from my watch at 13 miles, but I never noticed the 21K banner.  I also didn’t see anything marking the halfway point.  If didn’t occur to me that I was more than half done until I reached the 22K sign.  My time there was under two hours, so I was clearly on pace to break four hours by a wide margin.  I started somewhat fast, but my only goal was to break four hours.

For the next several kilometers, I didn’t know which neighborhood we were in.  I was beginning to slow down, but I could afford that.  To break four hours, I needed to average 9:09 per mile.  Through the first 17 miles, all of my mile times were under nine minutes.  Then in mile 18, I slowed to 9:12.

If I ran that pace for the rest of the race, I would easily break four hours.  My fear was that I would keep slowing down.  I lit a fire under myself to keep up with the runners around me.  In mile 19, I sped up to 8:42.

We were almost to 31K when I saw a fountain I recognized.  We were in Puerto Madero.  I knew we would run through this neighborhood, but we entered it from an unfamiliar direction.

After two more turns, we were on a familiar street.  It’s the one that borders the ecological reserve.  I ran along here on Saturday, but I was on the sidewalk.  Now, I was running in the street.

My race packet included a gel.  I had been keeping it in my fanny pack since the beginning of the race.  When I saw that I was approaching a water station, I took it out and quickly ate it.  Then I grabbed a bottle of water and drank just enough to wash it down.

I didn’t know our route through Puerto Madero, but I knew everything would look familiar.  Two years ago, I spent three days in this neighborhood.  It’s the only part of Buenos Aires that was already familiar to me.

That made the next four kilometers easier.  By the time we left that neighborhood, we only had 7K to go.  That was roughly the same distance I walked to get to the start of the race, but our route would be different.  When I was walking, it seemed to take forever.  Running, it would take less than half as long to cover that distance.

I had been skipping most of the water stations, but at 35K, I was thirsty.  I didn’t want to wait for the next Gatorade station.  I didn’t like drinking from bottles, but I drank water at this aid station.

Next, we run underneath a highway.  For roughly two kilometers, there was another roadway above us.  Now, I couldn’t trust splits from my watch.  I didn’t have a direct line of sight to the satellites, so my watch couldn’t tell where I was.  It would extrapolate from my last known location, but it couldn’t tell me if my pace changed.

When we got back out into the open again, I had roughly 5K to go.  Up until now, I had kept every mile but one under nine minutes.  From here on out, I slowed down, but I was able to limit the damage.

Buenos Aires has two airports.  I flew into the large international airport.  Now, we were running near the smaller domestic airport.  I could see planes taking off.

We ran another out-and-back section.  I saw the 5.30 guy again.  If that was his pace in minutes per kilometer, it was reassuring that I was still ahead of him.

At 41K, we made our final turn.  Now we were heading toward the finish line, but I wouldn’t see it until the last 100 meters.  It was be hidden behind a bend, just as it was when I was lined up in the start corrals.

When I finally got close enough to see the finish line, I saw the clock.  By the time I got there, it read “4:01:05.”  That was the elapsed time since the elite runners started.  I knew my time would be several minutes faster.

I finished in 3:52:40.  Then I kept moving through the finish area as quickly as I could.

I saw volunteers handing out water bottles.  I walked past them to get to other volunteers with Gatorade bottles.  I grabbed a bottle of Gatorade, and then I saw a volunteer with bananas.  I started eating a banana as I continued moving forward.  I was expecting to eventually see volunteers handing out finisher medals.

Soon, everyone ahead of me stopped moving.  There was a traffic jam.  When I reached the volunteers with medals, I understood what was causing the bottleneck.  We had tear-off tags at the bottom of our race bibs.  I didn’t know what those were for.  The volunteers had to collect those when they handed us our medals.

The design on the medal features the obelisk.  It was also featured on the shirts.

I had more options for getting back to hotel, because the subway was now running.  I had to get out of the finish area before I could get a good enough connection to use the maps app on my phone.  I already knew that I would need to walk for about a mile to get to the nearest Subte station.  When I pulled up transit directions to see how to get there, I noticed that it would take about an hour to get back to my hotel with a combination of walking and subway.  Just walking back would take an hour and 15 minutes.

Then it occurred to me that I had a third option that was faster.  I could run back to the hotel.  Additional running, at this point, would be a slow shuffle.  I also needed to take occasional walking breaks, as running was too tiring.  Still, it was the fastest way back to the hotel, so that’s what I did.

When I got back to the hotel, I was a train wreck.  I didn’t feel like going anywhere for lunch, so I ate the remaining food samples from my race packet.

When it was time for dinner, I still didn’t feel like going out.  That made it easier to decide where to eat.  I had dinner at the hotel’s restaurant.  I didn’t feel like I gave up anything.  It’s a good restaurant, and they had some local foods, as well as local beer and wine.

I slept well that night.

Monday, September 22

I flew home on Monday, but it was an evening departure, so I still had some time for sightseeing.  After breakfast, I did a workout at the hotel.  Then I headed out to see a few things that were within walking distance of my hotel.

My first stop was the Metropolitan Cathedral.  I didn’t have time to visit this church when I was here in 2023.




The cathedral is next to Plaza de Mayo.

Casa Rosada (the government building) is at the other end of the plaza.

From there, it was a short walk to the obelisk.

The most colorful neighborhood in Buenos Aires is La Boca.  I would’ve loved to visit that neighborhood again, but walking there would’ve taken too long, and there isn’t a Subte line that goes there.  Instead, I walked over to Puerto Madero, where I had lunch.


After lunch, I relaxed at the hotel until it was time to go to the airport.  My flight back to Atlanta is another overnight flight.  Hopefully this one will be on time.


Race statistics:
Distance:  42.2 kilometers
Time:  3:52:40
Average Pace:  5:31 per kilometer (8:52 per mile)
First Half:  1:55:16
Second Half:  1:57:24
Marathons/Ultras in 2025:  27
Lifetime Marathons/Ultras:  562
Consecutive Boston Qualifiers:  3
Lifetime Boston Qualifiers:  182
Countries:  57


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