Guam Running Club Calendar 2025. For more than 50 years,the grc has been dedicated to promoting a healthy lifestyle through the. Guam running club 48th ultra marathon and perimeter relay race set for april 22.

Record broken for largest 10k run in guam for 2023 (tumon, guam) the guam visitors bureau (gvb) and the guam running club (grc) finished with an epic ko’ko’ weekend. We encourage you to share to our group.