
Run the River Ultra is a running, road cycling, and ultra race on December 5, 2026 in Williamsburg, VA, with entry fees from $35 to $50.
RTRU takes place on December 5th, 2026
Half Marathon
50K
51.7 Mile
Spots are very limited, registration will be capped at around 25 participants.
Your registration cost includes custom Run the River Ultra merchandise and aid stations along the way with hydration and nutrition. Runners will need to provide their own water bottles. We will not be providing cups.
All runners will travel west on the Virginia Capital Trail – beginning at one of three starting points – and finishing in Richmond.
Each distance will start at the following locations.
Half Marathon - 3978 New Market Rd, Richmond, VA 23231 (Henricopolis Soil & Water District building)
50K - 10740 Courthouse Rd, Charles City, VA 23030 (Virginia Capital Trail Parking Lot)
51.7 Mile - Virginia Capital Trail Start, Williamsburg, VA 23185 (Jamestown Beach parking lot)
Runners are responsible for their own transportation,
For each starting point, you can also click on this Google Maps Link
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
55°
Typical Low
36°
Chance of Rain
33%
Based on US Climate Normals data from Williamsburg 2 N, 3 mi from the venue.
City Elevation
70 ft
Nearest Airport
PHF
Newport News Williamsburg International Airport · 18 mi
Major Hub
RIC
Richmond International Airport · 34 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at Run the River Ultra, put it on the calendar, and turn “someday” into a start date.
34
Days to train
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This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Built around sustained effort on a bike, exploring cities on the open road. Beginner distances create a great entry point into endurance sports.
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
Run the River Ultra
Dec 5, 2026