Friday, February 5, 2027 – Saturday, February 6Walker, MI

Groundhog Day Marathon

5 events

1/6 Marathon WORLD CHAMPIONSHIP7KRoadStarts 6:30 PM
Half Hog (1/6 plus Half)28.1KRoadStarts 6:30 PM
Whole Hog (1/6 plus Full)49.2KUltraStarts 6:30 PM
MarathonMarathonRoadStarts 8:00 AM
Half MarathonHalfRoadStarts 8:00 AM

1/6 Marathon WORLD CHAMPIONSHIP7KRoadStarts 6:30 PM
Half Hog (1/6 plus Half)28.1KRoadStarts 6:30 PM
Whole Hog (1/6 plus Full)49.2KUltraStarts 6:30 PM
MarathonMarathonRoadStarts 8:00 AM
Half MarathonHalfRoadStarts 8:00 AM

Location

Approximate, from the race's ZIP code.

Typical race-day weatherFair weather · 62/100

High / low: 30° / 22°F; -1° / -6°C
Humidity: 86%; Dew point 22°F
Chance of rain: 38%
Wind: 15 mph; Average

Usually cold for an ultra: about 27°F while racing.
Rain on about 38% of days around this date.
Often windy: about 15 mph on average.

Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.

Past results

4% slowerFinish times are typically 4% slower than at other half marathons.4 years, 964 finishers; men and women compared separately.
7% slowerFinish times are typically 7% slower than at other marathons.4 years, 448 finishers; men and women compared separately.

Year	Event	Finishers	Median	Men	Women
2026	Marathon · Marathon	101	4:57:30	4:34:41	5:14:17
2026	Half Marathon · Half	229	2:19:03	2:07:00	2:30:28
2026	Whole Hog (1/6 plus Full) · 49.2K	9	6:18:32	4:43:22	—
2026	Half Hog (1/6 plus Half) · 28.1K	43	3:21:00	3:04:28	3:21:46
2026	1/6 Marathon WORLD CHAMPIONSHIP · 7K	141	47:55	45:30	55:23
2025	Marathon · Marathon	118	4:40:42	4:35:14	4:50:03
2025	Half Marathon · Half	227	2:16:41	2:06:43	2:24:28
2025	Whole Hog (1/6 plus Full) · 49.2K	9	6:22:29	6:20:16	—
2025	Half Hog (1/6 plus Half) · 28.1K	29	3:04:00	3:04:00	3:03:48
2025	1/6 Marathon WORLD CHAMPIONSHIP · 7K	175	46:59	44:30	51:10
2024	Marathon · Marathon	143	4:30:15	4:26:04	4:37:50
2024	Half Marathon · Half	259	2:02:11	1:55:28	2:13:32
2024	1/6 Marathon WORLD CHAMPIONSHIP · 7K	174	44:10	41:40	46:14
2023	Marathon · Marathon	86	5:09:50	4:47:51	5:25:44
2023	Half Marathon · Half	249	2:15:36	2:10:09	2:23:01
2023	1/6 Marathon WORLD CHAMPIONSHIP · 7K	123	52:09	48:32	55:55

Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.

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