2023 USATF National Masters Championships July 20-23, 2023 – Greensboro, NC Congratulations to Joy’s Jack Rabbits TC’s W35-39 4x400m Relays American Record! Joy’s Jackrabbits Track Club’s 35-39 quartet of Christina Trucks, Adjua Gibb-Gabriel, Magdalene Thorne, and Christine Hufenbecher bettered the American record with their 4:10.86...