Event: Library Rapidplay April

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Opponent	Rating	Result
Lucas Liu	0	1 - 0
Senon Weerakkody	0	1 - 0
Isaac Machin	1039	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

480 = (1039 + 400 * (2 - 1)) / 3)