Chinese jumper Huang Junkai and his team won the 9th Shanghai International Double Dutch Contest. Huang broke his own world record with 140 single-foot jumps in 30 seconds -- an average of 9.3 skips per second. #DoubleDutch #Shanghai
Chinese jumper Huang Junkai and his team won the 9th Shanghai International Double Dutch Contest. Huang broke his own world record with 140 single-foot jumps in 30 seconds -- an average of 9.3 skips per second. #DoubleDutch #Shanghai
