TOKYO (Reuters) - Poland's Aleksandra Miroslaw smashed the women's world speed climbing record on Friday to win the first leg of the three-event Olympic final on Friday, as the competition that made its Games debut this week draws to a close.

Miroslaw, 27, reached the top of the 15m (49ft) wall in 6.84 seconds, knocking more than a tenth of a second off the 6.96 second record set last year by Russian climber Iuliia Kaplina, who was eliminated in Wednesday's qualifier.