Maraton Valencia Trinidad Alfonso

Valencia is the kind of race you come back from and immediately tell people about, not because of the sights but because of the numbers on your watch. The course is a loop through the city with almost no meaningful elevation, just flat, fast streets that let you run your own race from the gun. The weather in early December tends to be cool and crisp, which helps a lot. The last stretch runs through the City of Arts and Sciences, one of the more striking finish areas you'll run through anywhere, and the crowd there is loud right when you need it most.

This is a genuinely PR-friendly race. The course has essentially no net gain, the field is well-organized, and the pacing packs at the front are serious. Don't go out with them unless you belong there. Entry is by lottery, with a short priority window for previous participants before the general draw opens. It fills up fast and the lottery is competitive, so register the day it opens. It qualifies for Boston, which matters to a lot of people here. If you're chasing a time, this is a very good place to chase it.