World Athletics ratifies Ruth Chepngetich’s marathon world record

After undergoing a rigorous ratification process, Ruth Chepngetich’s time of 2:09:56 stands as the women’s marathon world record

Canadian sprinter’s world record not ratified, due to starting block issue

Christopher Morales Williams’s 400m indoor world record of 44.49 seconds will not stand

Kenyan runner loses two world records due to short course

Kenya’s Agnes Ngetich, who set both the women-only 5K and 10K records in one race, will not have her times ratified