How much do Saint Louis Half Marathon races cost?
Entry fees for Half Marathon races here run from $20 to about $55, depending on the event and how early you register.
Missouri · Half Marathon
Half Marathon Races in Saint Louis, Missouri
Every upcoming Half Marathon around Saint Louis, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
3 upcoming Half Marathon races found
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Common Questions About Running a Half Marathon in Saint Louis
How early should I register for a Half Marathon in Saint Louis?
3 of the 3 Half Marathon races in Saint Louis already have a price increase scheduled, so entry gets more expensive the longer you leave it. Race pricing almost always steps up as the date approaches, and signing up early is usually the cheapest option.
Where can I train for a Half Marathon in Saint Louis?
Browse Saint Louis run clubs on RunSesh to find a training group at your pace.