| 09 May 2026 |
Ice Age Trail Endurance Runs (50k|Half Marathon|50 Miler) |
La Grange, Wisconsin, United States |
| 15 May 2026 |
Cruel Jewel 100 (100 Miler) |
Blairesville, Georgia, United States |
| 15 May 2026 |
UTAH 115 (115 Miles) |
Kanab, Utah, United States |
| 15 May 2026 |
UTAH 50 (UTAH 50) |
Kanab, Utah, United States |
| 15 May 2026 |
Infinitus (100 Miler) |
Goshen, Vermont, United States |
| 15 May 2026 |
Born to Run (100M) |
Santa Ynez, California, United States |
| 16 May 2026 |
Silver State (50 Miler|50K|1/2 Marathon) |
Washoe County, Nevada, United States |
| 16 May 2026 |
Sun Mountain (50K) |
Winthrop, Washington, United States |
| 16 May 2026 |
O'Neill Park Trail Races (30k|Half Marathon|10k|50k|Marathon) |
Trabuco Canyon, California, United States |
| 16 May 2026 |
Dances with Dirt Gnaw Bone (13.1M|10K|50K|26.2M|50M) |
Nashville, Indiana, United States |
| 16 May 2026 |
Ram Party (24K |50 Mile|50K|16K|33K|5K) |
Colorado Springs, Colorado, United States |
| 16 May 2026 |
Bishop High Sierra Ultras (50 Miler|55K|100K) |
Bishop, California, United States |
| 16 May 2026 |
Massanutten Mountain Trails 100 (100 Miler) |
Kings Crossing, Virginia, United States |
| 16 May 2026 |
Quest for the Crest Trail Races (50K) |
Burnsville, North Carolina, United States |
| 16 May 2026 |
North Downs Way 50 (50 Miles) |
Waverley, England, United Kingdom |
| 16 May 2026 |
Zegama-Aizkorri (Marathon) |
Zegama, Basque Country, Spain |
| 17 May 2026 |
NJ Ultra Festival (100 Miles) |
Hardwick Center, New Jersey, United States |
| 23 May 2026 |
Grand Union Canal (145 Miles) |
Birmingham, England, United Kingdom |
| 23 May 2026 |
Nanny Goat 100 (100 Miler) |
Riverside, California, United States |
| 23-25 May 2026 |
Stumptown Trail Runs (1/2 Marathon|50K) |
Portland, Oregon, United States |