11 "Faux Pas" That Are Actually Okay to Make With Your high jump track

http://deanyfek322.angelfire.com/index.blog/1658652/11-ways-to-completely-sabotage-your-high-jump-track/

As with most track occasions, jumpers have 3 attempts at each height. Heights are raised 2 cm after each round, and just those who clear the bar proceed to the next round. The winner is he or she who clears the