Saturday, October 17, 2026Haddonfield, NJ
Jonas Cattell Memorial 10-mile Run & Fort Mercer 5K
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2 events
- Fort Mercer 5K5KRoadStarts 8:00 AM
- Jonas Cattell 10-mile Run10 miRoadStarts 8:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 96/100
- High / low
- 67° / 47°F
- 20° / 8°C
- Humidity
- 76%
- Dew point 48°F
- Chance of rain
- 25%
- Wind
- 8 mph
- Average
- Usually ideal weather for a half marathon.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 6% fasterFinish times are typically 6% faster than at other 10-mile races.4 years, 482 finishers; men and women compared separately.
- 7% fasterFinish times are typically 7% faster than at other 5Ks.4 years, 229 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2025 | Jonas Cattell 10-mile Run · 10 mi | 99 | 1:27:39 | 1:24:50 | 1:35:41 |
| 2025 | Fort Mercer 5K · 5K | 79 | 29:43 | 26:11 | 30:58 |
| 2024 | Jonas Cattell 10-mile Run · 10 mi | 123 | 1:28:13 | 1:24:20 | 1:38:17 |
| 2024 | Fort Mercer 5K · 5K | 71 | 32:39 | 30:09 | 33:45 |
| 2023 | Jonas Cattell 10-mile Run · 10 mi | 120 | 1:27:20 | 1:23:46 | 1:35:20 |
| 2023 | Fort Mercer 5K · 5K | 50 | 34:48 | 30:57 | 37:59 |
| 2022 | Jonas Cattell 10-mile Run · 10 mi | 140 | 1:29:08 | 1:25:49 | 1:34:17 |
| 2022 | Fort Mercer 5K · 5K | 29 | 32:07 | 32:59 | 29:56 |
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.