Australian sprinter Leah O’Brien breaks Raelene Boyle’s 57-year-old 100m record | Athletics

Australia’s sprinting revival has gone up a gear at this year’s national athletics championships in Perth after another record more than half a century old was broken.

West Australian teenager Leah O’Brien won the under-18s girls 100m on Tuesday in a time of 11.14s, eclipsing Raelene…