2019 was the first year they ended the marathon at the Zocalo and started at the Olympic Stadium. Overall it was extremely chaotic. Subways to get to the starting point were completely full to the point that I had to wait a couple trains to be able to actually get in one. I was almost late because that whole process took an extra 40 minutes.

I will say they had a lot of bathrooms setup at the start which was nice. I attempted to join my starting group (3:30) but it was very difficult to find. I did find it eventually but clearly nobody was paying attention to corrals because the ENTIRE marathon I was passing thousands of people slower than me. Sometimes the route is pretty narrow which makes you have to weave in and out of people or get blocked completely.

Good luck using a bathroom during the race. I ended up peeing behind a tree in the park out of desperation. Even at the end of the race I was praying for bathrooms but they had NOTHING.

Ending the race in the Zocalo was a nightmare for me. It's already a crowded area of Mexico City but after running an extremely exhausting marathon they spit you out into a crowd of thousands of people with no access to a restroom or chill area to hang out for a bit. It's extremely difficult to escape this area because you are boxed in by the marathon and they don't like people crossing the course.

I will say the crowd support was amazing and it was cool to be able to run through various areas of Mexico City without having to stop. I did have a lot of fun during various parts of the race. Would I recommend this marathon? Only if you thrive in loud noises and chaos and don't mind the lack of bathroom access and potential huge crowds at the end. Also if you aren't trying to set any records for yourself. Buena suerte!