Indianapolis Monumental Half Marathon
Race Day Weather
Cold start — layer up, warming through the race
Runners will start in chilly 37°F conditions — dress in layers for the corral and plan to shed early. Temperatures rising to 51°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 70% is worth noting for effort level, especially in later miles.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Indianapolis Monumental Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Indianapolis Monumental Half Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The Indianapolis Monumental Half Marathon is a USATF-certified 13.1 mile road race on the Saturday of race weekend, starting on West Street beside the Indiana Convention Center in downtown Indianapolis. The course is fast and flat, and it shares its opening miles with the marathon before the two routes split near Mile 7. Early in the race it runs along Massachusetts Avenue and past the Bottleworks District, then winds through a number of historic neighborhoods and cultural districts before finishing downtown on Washington Street.
Race weekend
FAQ
When is the 2026 Indianapolis Monumental Half Marathon?
What will the weather be like for the 2026 Indianapolis Monumental Half Marathon?
Reviews & Race Reports
Enjoyed a fun, relaxed race with unexpected PBR shots
And we're off. I just run comfortably for the first few miles. I assumed I'd be about 8:30 pace but I don't really care. I force myself to lift my eyes and take in my city, my fellow runners. I feel good and it's a wonderful morning for this, so I just let the jumble of humanity thin out naturally, not darting and sprinting to get around to a clearing.