All marathons

Early April · Midwest · Loop

St. Louis Marathon (GO! St. Louis)

St. Louis, MO

Gateway Arch Riverfront

Official site

Opens the race organizer's website

Typical start temp
47°F(estimated)
Field size
~1,200 runners(estimated)
Course
Rolling
Elevation
600 ft gain(estimated)

Why runners choose this race

A loop course around St. Louis, MO, with steady rollers that reward even pacing.

Good fit if

  • Not enough verified data yet.

Think twice if

  • No notable warnings in the data.

Course and logistics

Course type
Loop
Surface
Road
Total gain
600 ft(estimated)
Field size
~1,200 runners(estimated)
Crowd support
Pockets of spectators
Entry
Data coming soon
Start / finish
Start and finish in the same area

Race details

Typical timing
Early April
Region
Midwest
Editorial tier
Featured
Data last reviewed
2026-08-26

Gateway Arch Riverfront

Good to know

  • Loop course
  • Destination race

Race-day weather

Modelled from location, month and coastal proximity — not verified race history.

Typical start
47°F(estimated)
By midday
58°F(estimated)
Dew point
40°F(estimated)
ExcellentGoodWarmHeat risk

Typical start sits at 47°F excellent marathon conditions.

Similar races

Early April · Midwest

St. Louis Marathon

St. Louis, MO

Weather
47°Ftypical start
Field size
~1,200 runners
Course
Rolling
Elevation
600 ft gain · 0 ft net

Event listed as: Marathon

PR7.3Weather9.0Experience6.8

Mid-October · Midwest

Des Moines Marathon

Des Moines, IA

Weather
48°Ftypical start
Field size
~1,500 runners
Course
Rolling
Elevation
500 ft gain

State Capitol grounds and Gray's Lake

PR7.3Weather8.9Experience7.4