Event: WDCL Division 2

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Opponent	Rating	Result
Colin Mather	1452	0 - 1
Malcolm Spencer	1181	0 - 1
Joe Brewer	1200	0 - 1

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

878 = (3833 + 400 * (0 - 3)) / 3)