All marathons

Mid-May · Midwest · Loop

Green Bay Marathon (Cellcom)

Green Bay, WI

Includes a lap around Lambeau Field, the Green Bay Packers' home stadium since 1957 and one of the most storied venues in American sports, nicknamed "the Frozen Tundra." A flat course otherwise.

Lap around Lambeau Field turf

  • Best for PR
  • Boston Qualifier
  • First Marathon
Official site

Opens the race organizer's website

Typical start

48°

Cooler than 49% of U.S. marathons

Modeled historical conditions

Elevation gain

250ft

Flatter than 48% of races

Estimated total climb

Field size

1.5K

Larger than 60% of races

Estimated field

PR potential

9.4/10

Top 11%

Almanac model

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

Course profile

250 ft gain

Flat course, loop.

0510152026.2
Schematic profile drawn from total gain, total loss and course category, on a shared vertical scale of 200 ft. Not a surveyed GPS trace.

Race-day weather

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

6 AM

40°

Start

48°

Midday

59°

ExcellentGoodWarmHeat risk

Typical start sits at 48°F, excellent marathon conditions.

Typical dew point 41°F, 22% chance of precipitation, wind around 10 mph. All modeled.

The bottom line

A quietly fast race that does not ask for much beyond honest pacing.

Green Bay Marathon (Cellcom) is a strong choice for a PR attempt, and Green Bay offers very little meaningful elevation. The tradeoff is that nothing about it is extreme in either direction.

Why runners choose this race

A loop course around Green Bay, WI, with very little meaningful elevation change.

The case for it

  • PR attempts
  • Boston qualification
  • First-time marathoners

The tradeoffs

  • No notable warnings in the data.

Course and logistics

Course type
Loop
Surface
Road
Profile
Flat
Total gain
250 ft(estimated)
Field size
~1,500 runners(estimated)
Crowd support
Pockets of spectators
Entry
Data coming soon
Start / finish
Start and finish in the same area

Race details

Typical timing
Mid-May
Region
Midwest
Editorial tier
Featured
Data last reviewed
2026-08-26
  • Best for PR
  • Boston Qualifier
  • First Marathon
  • Loop course
  • Flat course
  • Destination race

Similar races

Races with a comparable profile.

Late April · Midwest

Glass City Marathon

Toledo, OH

Weather
42°Ftypical startModelled estimate
Field size
~1,500 runners
Course
Flat
Elevation
200 ft gain

Northwest Ohio flat, fast spring course

PR9Weather9Experience7

Mid-April · Midwest

Carmel Marathon Weekend

Carmel, IN

Weather
44°Ftypical startModelled estimate
Field size
~1,800 runners
Course
Flat
Elevation
180 ft gain · 0 ft net

Event: Carmel Marathon

PR9Weather9Experience7

Early November · Midwest

MO' Cowbell Marathon/Half-Marathon/10K/5K

Saint Charles, MO

Weather
43°Ftypical startModelled estimate
Field size
~1,000 runners
Course
Flat
Elevation
200 ft gain · 0 ft net

Event listed as: Marathon

PR9Weather9Experience7