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

17-year-old eclipses junior mark set in 1968 with time of 11.14s in PerthHigh school girl is the latest of talented Australian crop to emergeAustralia’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 Boyle’s record in the junior age bracket that was s