Vayne vs Kog'Maw

Rank	Win Rate	Kog'Maw wins50 %Vayne wins	Games
Iron	too few games		—
Bronze	too few games		3
Silver	too few games		1
Gold	too few games		3
Platinum	too few games		6
Emerald	too few games		7
Diamond	too few games		3
Master	too few games		1
Grandmaster	too few games		—
Challenger	too few games		—

Rows count games as played (24 in all). The head weights each rank by its real share of ranked players (24 weighted games), so the rows do not add up to it. Patch 26.21: 15 games, too few for a win rate Games from patch 26.20 to 26.21