Event: Division 1

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Opponent	Rating	Result
Steve Whatmore	1879	½ - ½
William Hulley	1736	½ - ½
John Staniforth	1836	½ - ½

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

1817 = (5451 + 400 * (0 - 0)) / 3)