Dahlgren Trail Half Marathon
Dahlgren Trail Half Marathon race day weather
Cool temps, moderate wind effects
Runners will face temperatures starting at 35°F and gradually rising to 40°F by the finish. With a light wind from the WNW reaching 7 mph, runners will experience a tailwind in the early miles, but should prepare for a headwind from miles 11 to 14. Given the cool conditions, maintaining a consistent pace is advisable, as humidity remains moderate at 59%, allowing for effective hydration without excessive heat stress.
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Dahlgren Trail Half Marathon route and elevation
The Dahlgren Trail Half Marathon course has about 154 ft (47 m) of climbing and 154 ft (47 m) of descent, and finishes near the elevation it starts. It is hillier than 66% of the half marathon courses racecast.io has mapped, measured by what the hills cost in time. It has no steep miles: no mile climbs more than 55 ft (17 m).
Biggest climbs
- Miles 0.9 to 4.1: climbs about 95 ft (29 m).
- Miles 7.2 to 9: climbs about 60 ft (18 m).
What the hills cost
- 1:45 on a flat course is about 1:45:40 here (40 seconds slower).
- 2:00 on a flat course is about 2:00:45 here (45 seconds slower).
- 2:15 on a flat course is about 2:15:50 here (50 seconds slower).
Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.
Even-effort splits for a 1:45, 2:00 or 2:15 finish
| Mile | Climb | Descent | 1:45 | 2:00 | 2:15 |
|---|---|---|---|---|---|
| 1 | 10 ft | 2 ft | 8:01 | 9:10 | 10:19 |
| 2 | 7 ft | 2 ft | 8:00 | 9:08 | 10:17 |
| 3 | 30 ft | 3 ft | 8:11 | 9:21 | 10:31 |
| 4 | 51 ft | 0 ft | 8:23 | 9:35 | 10:47 |
| 5 | 3 ft | 34 ft | 7:51 | 8:58 | 10:05 |
| 6 | 0 ft | 22 ft | 7:52 | 9:00 | 10:07 |
| 7 | 4 ft | 5 ft | 7:57 | 9:06 | 10:14 |
| 8 | 20 ft | 1 ft | 8:07 | 9:16 | 10:26 |
| 9 | 37 ft | 0 ft | 8:16 | 9:27 | 10:38 |
| 10 | 0 ft | 49 ft | 7:47 | 8:53 | 9:59 |
| 11 | 1 ft | 34 ft | 7:49 | 8:57 | 10:04 |
| 12 | 3 ft | 6 ft | 7:57 | 9:05 | 10:13 |
| 13 | 2 ft | 9 ft | 7:56 | 9:03 | 10:12 |
| Last 0.1 | 0 ft | 2 ft | 0:53 | 1:01 | 1:08 |
Explore the Dahlgren Trail Half Marathon course with the weather and your pace along the route, or compare it with other races.
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About the Dahlgren Trail Half Marathon
The Dahlgren Trail Half Marathon is a winter trail half marathon on the Dahlgren Railroad Heritage Trail in King George, Virginia. The out-and-back course starts at the Bloomsbury Road Trailhead and runs east about 6.5 miles on a flat, smooth former railroad bed of dirt, gravel and grass before turning back to the start. The field is capped at 225 runners, with a 3.5 hour time limit and cash prizes for the top three overall men and women. Arsenal Events directs the race, which supports the Friends of the Dahlgren Railroad Heritage Trail.
