Live: O'Callaghan drops out of 50 back, Australia's sprint stars hit the track The athletics program at the Commonwealth Games has been marred by controversy from the outset.
Sprinters Rohan Browning and Eddie Nketia were among those caught off guard when a sudden change in rules transformed qualifying heats into high stakes time trials.
Under the new system, only the top eight sprinters in the rankings receive automatic semifinal spots. This decision has been met with scorn from athletes who feel it's an unfair approach.