Runners' Almanac
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Early April · Midwest · Loop

St. Louis Marathon

St. Louis, MO · Saturday, April 3, 2027

Event listed as: Marathon

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Registration opens on the organizer's site

Typical start

47°

Cooler than 58% of U.S. marathons

Modeled historical conditions

Elevation gain

600ft

Flatter than 23% of races

Estimated total climb

Field size

1.2K

Larger than 54% of races

Estimated field

PR potential

7.3/10

Ahead of 37% of races

Almanac model

Percentiles compare this race against all 224 U.S. marathons in the Almanac.

Course profile

600 ft gain · 0 ft net

Rolling course, loop.

0510152026.2
Schematic profile drawn from total gain, total loss and course category, on a shared vertical scale of 400 ft. Not a surveyed GPS trace.

Race-day weather

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

6 AM

39°

Start

47°

Midday

58°

ExcellentGoodWarmHeat risk

Typical start sits at 47°F, excellent marathon conditions.

Typical dew point 40°F, 22% chance of precipitation, wind around 10 mph. All modeled.

The bottom line

A balanced race that suits most goals without specialising in any.

St. Louis Marathon is a strong choice for a first marathon, and the course rolls gently without any sustained climbing. The tradeoff is that nothing about it is extreme in either direction.

Why runners choose this race

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

The case for it

  • Not enough verified data yet.

The tradeoffs

  • No notable warnings in the data.

Course and logistics

Course type
Loop
Surface
Road
Profile
Rolling
Total gain
600 ft(estimated)
Total loss
600 ft(estimated)
Net elevation
0 ft(estimated)
Field size
~1,200 runners(estimated)
Crowd support
Pockets of spectators
Entry
Easy
Entry fee
$85(most recent listed price)
Day of week
Saturday
Start / finish
Start and finish in the same area

Race details

Typical timing
Early April
Next confirmed date
Saturday, April 3, 2027
Registration
Open now
Region
Midwest
Editorial tier
Recommended
Data last reviewed
2026-08-26
  • Loop course
  • Easy entry

Similar races

Races with a comparable profile.

Early April · Midwest

St. Louis Marathon (GO! St. Louis)

St. Louis, MO

Weather
47°Ftypical startModelled estimate
Field size
~1,200 runners
Course
Rolling
Elevation
600 ft gain

Gateway Arch Riverfront

PR7Weather9Experience7

Mid-October · Midwest

Des Moines Marathon

Des Moines, IA

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

State Capitol grounds and Gray's Lake

PR7Weather9Experience7