| 10366 | 29 May 26 | 2026 RT 66 Multisport Festival Youth Aquathlon - Friday | triathlon | Edmond, OK |
| 10367 | 30 May 26 | 2026 Route 66 Triathlon Festival - Saturday Events | triathlon | Edmond, OK |
| 10368 | 30 May 26 | 2026 Rose Festival Street Mile | 1 Mile | Portland, OR |
| 10369 | 13 Jun 26 | 2026 Rocky Ridge 5k & 10k | 10K/5K | Charlottesville, VA |
| 10370 | 04 Oct 26 | 2026 Rockfest Half Marathon and 5K | 5K | Hampton, NH |
| 10371 | 11 Jul 26 | 2026 Rock the Heat 5k/10k | 10K/5K | Rockville, MD |
| 10372 | 30 May 26 | 2026 Rock Hall Olympic Triathlon - SATURDAY | triathlon | Rock Hall, MD |
| 10373 | 05 Dec 26 | 2026 Rock Creek Reindeer Rumble 5k/10k | 10K/5K | Washington, DC |
| 10374 | 12 Sep 26 | 2026 Riversport Challenge TORC Triathlon | triathlon | Oklahoma, OK |
| 10375 | 19 Apr 26 | 2026 Riverboat Series - Day 7 (IL) | 5K/10K | Vienna, IL |
| 10376 | 18 Apr 26 | 2026 Riverboat Series - Day 6 (MO) | 5K/10K | Cape Girardeau, MO |
| 10377 | 17 Apr 26 | 2026 Riverboat Series - Day 5 (KY) | 5K/10K | Columbus, KY |
| 10378 | 16 Apr 26 | 2026 Riverboat Series - Day 4 (TN) | 5K/10K | Millington, TN |
| 10379 | 15 Apr 26 | 2026 Riverboat Series - Day 3 (MS) | 5K/10K | Hollandale, MS |
| 10380 | 14 Apr 26 | 2026 Riverboat Series - Day 2 (AR) | 5K/10K | Eudora, AR |