August is one of the busiest months on Oregon’s running calendar, with races happening nearly every weekend—and often during the week as well. Whether you’re chasing a PR, tackling a new distance, or simply looking for an excuse to explore a new part of the state, there’s no shortage of opportunities to pin on a bib.
One important note this year: wildfire season is already affecting parts of Oregon. While race directors work hard to keep events on schedule, conditions can change quickly. Be sure to check each race’s event page or social media channels for the latest updates on course conditions, air quality, schedule changes, or other modifications.
| Race Name | Date | Location | Distances | Registration Links |
|---|---|---|---|---|
| Catherine Creek Classic | August 1, 2026 | Union, OR | 13.1M, 5K, 1M | More Information |
| Hood Hundred | August 1, 2026 | Mount Hood, OR | 100M | SOLD OUT |
| ORRC Pumpkin Ridge Run Half Marathon | August 1, 2026 | North Plains, OR | 13.1M, 10K, 5K | More Information |
| Rogue River Triathlon | August 1, 2026 | Agness, OR | Sprint Triathlon | More Information |
| Rose City Relays | August 1, 2026 | Portland, OR | Relay | More Information |
| Run For The Oaks | August 1, 2026 | Rickreall, OR | 10K, 5K | More Information |
| Steens Rim Run & Walk | August 1, 2026 | Frenchglen, OR | 10K | More Information |
| Waldo 100K | August 1, 2026 | Oakridge, OR | 100K | LOTTERY ONLY |
| XTERRA Portland | August 1, 2026 | Gaston, OR | Triathlon | More Information |
| OBRS – Loowit | August 1, 2026 | Vancouver, WA | 5K | More Information |
| Bush Park Cross Country Run Series | August 6, 2026 | Salem, OR | 5K, 3K | More Information |
| OnlyBulls Grand Prix of Portland | August 6, 2026 | Portland, OR | 2M | More Information |
| Columbia River Triathlon | August 7-8, 2026 | Vancouver, WA | Triathlon | More Information |
| Angry Owl Run | August 8, 2026 | Salem, OR | 24H, 12H, 6H | More Information |
| Aurora Colony Days 5K & Kids 1K | August 8, 2026 | Aurora, OR | 5K | More Information |
| Circle the Bay 30K | August 8, 2026 | North Bend, OR | 30K, Relay | More Information |
| Death By 5K | August 8, 2026 | Dexter, OR | 50K | More Information |
| Elkhorn Crest 50 | August 8, 2026 | Sumpter, OR | 53M, 26.2M | More Information |
| Elkhorn Relay | August 8, 2026 | La Grande, OR | 82.2M Relay | More Information |
| Get Your Rear in Gear | August 8, 2026 | Portland, OR | 5K | More Information |
| Haulin’ Aspen | August 8, 2026 | Bend, OR | 26.2M, 13.1M, 6.5M | More Information |
| Michael Bryson 5K Shuffle | August 8, 2026 | Eugene, OR | 5K | More Information |
| Mud, Sweat & BBQ | August 8, 2026 | Woodburn, OR | 5K | More Information |
| OBRS – Threshold Brewing | August 8, 2026 | Portland, OR | 5K | More Information |
| Run for Salem Free Clinics | August 8, 2026 | Salem, OR | 10K, 5K | More Information |
| Girlfriends Triathlon | August 9, 2026 | Vancouver, WA | 1Triathlon | More Information |
| Homer Classic | August 9, 2026 | Silverton, OR | 8K, 2M | More Information |
| Portland Trail Series – Summer | August 12, 2026 | Portland, OR | 6M, 4M | More Information |
| Bush Park Cross Country Run Series | August 13, 2026 | Salem, OR | 5K, 3K | More Information |
| Oregon Track Club Running Series #6 | August 13, 2026 | Eugene, OR | 5K, 1M | More Information |
| Portland Grindfest | August 14, 2026 | Portland, OR | Last Man Standing | More Information |
| 5K for Kim’s Hope | August 15, 2026 | Beaverton, OR | 5K | More Information |
| Scandia Run | August 15, 2026 | Junction City, OR | 10K, 4M, 5K | More Information |
| STRIDE 5K – Bush’s Pasture Park | August 15, 2026 | Salem, OR | 5K | More Information |
| Wy’east Trailfest | August 15–16, 2026 | Mount Hood, OR | 50M, 50K, 28K, 14K, 13.1M, 8K | More Information |
| OBRS – Abbey Road Farm | August 16, 2026 | Carlton, OR | 5K | More Information |
| Bush Park Cross Country Run Series | August 20, 2026 | Salem, OR | 5K, 3K | More Information |
| Celtic Blue Day 5K | August 22, 2026 | Keizer, OR | 5K | More Information |
| Paideia Back-To-School 5K | August 22, 2026 | West Linn, OR | 5K | More Information |
| Post Canyon Trail Half Marathon | August 22, 2026 | Hood River, OR | 13.1M | More Information |
| Bush Park Cross Country Run Series | August 27, 2026 | Salem, OR | 5K, 3K | More Information |
| Run the Couve Series | August 27, 2026 | Vancouver, WA | 5K | More Information |
| Hood To Coast Relay | August 28-29, 2026 | Portland, OR | 198M Relay | TEAM CLUBHOUSE |
| Tails on Trails | August 29, 2026 | Mount Hood, OR | 5K, 1.5K | More Information |
| Bend Beer Run | August 29, 2026 | Bend, OR | 5K | More Information |
| Stagecoach Run | August 29, 2026 | Phoenix, OR | 13.1M, 10K, 5K | More Information |
| Sunset Bay Trail Runs | August 29, 2026 | Coos Bay, OR | 13.1M, 15K, 4M, 1M | More Information |
| Appletree Marathon | August 29-30, 2026 | Vancouver, WA | 26.2, 13.1, 5k | More Information |
| SW5K | August 30, 2026 | Beaverton, OR | 5K, 1M | More Information |
