Christmas in July Half Marathon Richland 10K
Race Day Weather
Warm start, big temp swing
A warm 74°F start means heat management is critical — consider dialing back your goal pace by 10-20 sec/mi. Temps will climb significantly to 94°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Christmas in July Half Marathon Richland 10K
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Christmas in July Half Marathon Richland 10K race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The 10K starts and finishes at Leslie Groves Park in Richland, Washington, and follows the paved river trail along the Columbia River. The route heads south from the park to a turnaround and comes back the same way, so runners see the same stretch of riverfront in both directions. The course is flat and fast, run on trail and path surfaces with no hills of note.