400 metres hurdles to 400 metres, or one lap of the stadium, and the number of hurdles was reduced to ten. The official height of the hurdles was set to 91.4 cm (3 feet) for men and 76.20 cm (2 ft, 6 inches) for women. The hurdles were now placed on the course with a run-up to the first hurdle of 45 metres, a distance between the hurdles of 35 metres each, and a home stretch from the last hurdle to the finish line of 40 metres. The first documented 400 m hurdles race for women took place in 1971. The International Association
Warfield Mares' Hurdle It is currently titled the olbg.com Mares' Hurdle. The 2017 running was cancelled after the original fixture at Ascot and a rescheduled race at Huntingdon were both abandoned due to frost. ---- Warfield Mares' Hurdle The Warfield Mares' Hurdle is a Grade 2 National Hunt hurdle race in Great Britain which is open to mares aged four years or older. It is run at Ascot over a distance of about 2 miles 7½ furlongs , and during its running there are thirteen hurdles to be jumped. The race is scheduled to take place each year in January. It was first