Running
Halbmarathon
21.1 km
Start: 09:10 AM
Rosaryville Half Marathon, 10K, 5K Trail Run
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Forest runs in Moldova, Upper Marlboro
Distances
Running
10K
10 km
Start: 10:15 AM
50.00 EUR
Running
5K
5 km
Start: 09:00 AM
40.00 EUR
About
Conveniently located right off the Capital Beltway, Rosaryville State Park in Upper Marlboro, MD offers fun and challenging terrain that is also beginner friendly. The race courses wind through mixed hardwood forests and fields, providing a beautiful experience for runners.
Catering & aid stations
There are 9 aid stations on the half marathon course, providing cups, water, and Gatorade. One aid station also has snacks.
Typical weather in Upper Marlboro
Monthly averages based on historical data (2000–present).
Jan6°-1°
↑ 07:25
↓ 17:09
Feb8°-1°
↑ 07:00
↓ 17:44
Mar13°3°
↑ 07:19
↓ 19:15
Apr19°9°
↑ 06:31
↓ 19:44
May23°14°
↑ 05:55
↓ 20:13
Jun28°19°
↑ 05:42
↓ 20:35
Jul30°22°
↑ 05:55
↓ 20:32
Aug29°21°
↑ 06:22
↓ 20:03
Sep26°18°
↑ 06:50
↓ 19:16
Oct20°12°
↑ 07:17
↓ 18:29
Nov14°6°
↑ 06:51
↓ 16:54
Dec8°1°
↑ 07:19
↓ 16:47
Prices & signup
- 10K50.00 EUR
- 5K40.00 EUR
Last updated: May 31, 2026, 01:03:15 PM
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