Event: League Division Two

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Opponent	Rating	Result
Ed H Goodwin	1836	½ - ½
Mike P Maher	1699	0 - 1
David Adams	1305	½ - ½

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

1480 = (4840 + 400 * (0 - 1)) / 3)