4 Dirty Little Secrets About the high jump surfaces Industry
https://wiki-quicky.win/index.php?title=15_Undeniable_Reasons_to_Love_high_jump_surfaces
Similar to most track occasions, jumpers have 3 attempts at each height. Heights are raised 2 cm after each round, and only those who clear the bar carry on to the next round. The winner is he or she who clears