Wobble-ball

Sport that involves racing around a room while balancing atop a big wobbly rubber ball. Invented by Sir Stephenson Remington-Hobbes in 2012.

List of World Champions

2012: Sir Stephenson Remington-Hobbes
2013: Sir Stephenson Remington-Hobbes
2014: Sir Stephenson Remington-Hobbes
2016: Sir Stephenson Remington-Hobbes
2017: Mr. Grodzinsky
2018: Mr. Grodzinsky
2019: Mr. Grodzinsky

School-level wobble-ball races are typically 157 yards.
Olympic-level and World Championship races are 3 times that, i.e. 471 yards.

There are hundreds of different wobble-ball balls available on the market. Swedhump Elementary uses the Tumner-44. This is the same model used professionally. The elasticity coefficient of the Tumner-44 is 64.23 and the bounce-back coefficient is 87.23, with a Sharpe Ratio of 0.26 and Fellini Multiplier of 0.22.