Caster Semenya put her run-in with the IAAF over controversial new rules on testosterone to one side as she scorched to the fourth-fastest time in the women-s 800m at the Diamond League meet here on Saturday. Semenya completely dominated her two-lap sortie, leading from gun to tape to clock a 1min 54.25sec.

Only Kenyan Pamela Jelimo, in Zurich in 2008, Soviet Union-s Nadezhda Olizarenko in 1980 and Czech world record holder Jarmila Kratochvilova 1:53.28, in 1983, have gone faster.