Redmond Harvest Half Marathon
Redmond Harvest Half Marathon race day weather
Cool start, warming trend
Runners will face a temperature rise from 56°F at the start to 63°F by the finish, with humidity levels at 66%. With light winds throughout, conditions will remain manageable, but runners should consider adjusting their pace as temperatures climb. The flat course offers consistent footing, making it ideal for maintaining a steady rhythm, particularly in the early miles.
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Redmond Harvest Half Marathon route and elevation
The Redmond Harvest Half Marathon course has about 20 ft (6 m) of climbing and 22 ft (7 m) of descent, and finishes near the elevation it starts. It is flatter than 80% 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 20 ft (6 m).
What the hills cost
The hills change finish times by less than 0.2% here, under half a minute for a 2:00 runner.
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 | 14 ft | 13 ft | 8:00 | 9:09 | 10:17 |
| 2 | 6 ft | 13 ft | 7:59 | 9:07 | 10:16 |
| 3 | 11 ft | 17 ft | 7:58 | 9:07 | 10:15 |
| 4 | 9 ft | 11 ft | 8:00 | 9:08 | 10:17 |
| 5 | 11 ft | 9 ft | 8:01 | 9:10 | 10:19 |
| 6 | 8 ft | 9 ft | 8:00 | 9:08 | 10:17 |
| 7 | 13 ft | 12 ft | 8:01 | 9:10 | 10:18 |
| 8 | 16 ft | 17 ft | 7:59 | 9:08 | 10:16 |
| 9 | 8 ft | 9 ft | 8:00 | 9:08 | 10:17 |
| 10 | 11 ft | 9 ft | 8:02 | 9:10 | 10:19 |
| 11 | 11 ft | 10 ft | 8:00 | 9:10 | 10:18 |
| 12 | 10 ft | 8 ft | 8:01 | 9:09 | 10:19 |
| 13 | 17 ft | 8 ft | 8:05 | 9:15 | 10:23 |
| Last 0.1 | 1 ft | 2 ft | 0:54 | 1:01 | 1:09 |
Explore the Redmond Harvest Half Marathon course with the weather and your pace along the route, or compare it with other races.
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About the Redmond Harvest Half Marathon
The Redmond Harvest Half Marathon is a Labor Day half marathon in Redmond, Washington, organized by the Lake Sammamish Run Club and Seattle United Runners. The course is a flat, fully paved out-and-back along the Sammamish River Trail. It debuted in 2023 with a Marymoor Park start and finish; starting in 2026 the race begins and ends at Redmond Town Center.
