The UltraRunning link for the U.S.
Hawaii Running Clubs
| Big Island Int. Marathon Assoc. | Hilo |
| Big Island Road Runners | Hilo |
| Faerber's Flyers | Honolulu |
| Hawaiian Ultra Running Team | Honolulu |
| Honolulu Marathon Assn | Honolulu |
| Mid-Pacific RRC | Honolulu |
| Valley Isles Road Runners | Kahului Maui |