Event: Woodhouse Cup

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Opponent	Rating	Result
Herbert Lockwood	1643	1 - 0
Paul G Day	1731	1 - 0
John Thackray	1910	½ - ½

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

2028 = (5284 + 400 * (2 - 0)) / 3)