Event: St Mary's Qualifier

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Opponent	Rating	Result
Philip Blakeman	1057	1 - 0
Otto Welz	0	1 - 0
Will Riney	0	1 - 0

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

752 = (1057 + 400 * (3 - 0)) / 3)