5k and 10k are more or less the same, they make small adjustments but the core of it is Epcot loop for 5k, Epcot loop plus area resorts for 10k.
(At least one year they did something different with the 10k and gave us a small route to HS but that hasn't happened for at least the last two years)
In 2025 they made a curious change to the full: they moved the start time earlier, to 4:30, and the bigger loop of Epcot would happen at the BEGINNING of the race. They also extended the time we spend in MK, which is great, and that’s how they sold this change, but it became very obvious that a major part of this change was to reduce the time everyone spends in the parks during opening hours. Epcot and HS are cleared out half an hour earlier than they had been, and most of World Showcase isn’t impacted by the race. I think you enter at the same area but you go the opposite direction and miss most of WS.
I get it from the perspective of the parks. It’s a bit dangerous having to manage the parks guests and athletes, guests have to navigate around the course kinda carefully, and there are a few points where its difficult to cross. But it kinda stinks for the athletes. It was cool to have that last mile be a full loop, get a drink from wherever you wanted as long as it was open, etc. Some of the guests on the sides would be happy to see us and cheer us on but I guess some weren't.
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