Event: WDCL Division 2

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Opponent	Rating	Result
John Reid	1390	1 - 0
Bernard Bedworth	1480	1 - 0
Stephen Deakin	0	1 - 0

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

1357 = (2870 + 400 * (3 - 0)) / 3)