Correct

义赛

/ yì sài / 
Strokes

Example

As a Noun

benefit match/competition; sports competition held for charity

1
Zǔzhī
组织
yìsài
义赛
biǎoyǎn
表演

organize a benefit match

2
Lánqiú
篮球
yìsài
义赛

benefit basketball match; basketball benefit