Sunday, April 11, 2027Mertztown, PA
Fifth Street Rock Monster
5 events
- Trail MarathonMarathonTrailStarts 7:00 AM
- Trail Ultra-Marathon Relay - Team Captains/ Relay members100KUltraStarts 7:00 AM
- Trail Half MarathonHalfTrailStarts 8:00 AM
- 10k10KTrailStarts 9:00 AM
- 5k5KTrailStarts 9:30 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 94/100
- High / low
- 60° / 38°F
- 15° / 3°C
- Humidity
- 78%
- Dew point 41°F
- Chance of rain
- 32%
- Wind
- 6 mph
- Average
- Usually ideal weather for an ultra.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | Trail Ultra-Marathon Relay - Team Captains/ Relay members · 100K | 2 | 4:42:13 | — | — |
| 2026 | Trail Marathon · Marathon | 8 | 5:29:42 | — | — |
| 2026 | Trail Half Marathon · Half | 14 | 2:24:42 | — | — |
| 2026 | 10k · 10K | 36 | 1:08:44 | — | — |
| 2026 | 5k · 5K | 17 | 40:27 | — | — |
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.