3 Reasons Your high jump track Is Broken (And How to Fix It)
https://alpha-wiki.win/index.php?title=10_Situations_When_You'll_Need_to_Know_About_high_jump_surfaces
As with most track events, jumpers have three attempts at each height. Heights are raised 2 cm after each round, and just those who clear the bar move on to the next round. The winner is she or he who clears the