Event: Divison 3 - Batley-Meek Memorial Trophy

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Opponent	Rating	Result
Peter Cooper	130	1 - 0
George Swanson	117	1 - 0
Peter Hulse	136	1 - 0
Richard F Hall	132	½ - ½
Andrew Nettleship	92	1 - 0
George Swanson	110	1 - 0
Elliott Spencer	124	1 - 0

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

463 = (841 + 400 * (6 - 0)) / 7)