Event: Walker Shield

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Opponent Rating Result
Peter LT Blundell 115 0 - 1
Bob Wallace 100 1 - 0
Andrew M Haycock 106 1 - 0
Peter LT Blundell 115 1 - 0
Leon A Garfield 104 1 - 0
Felix Coker 111 1 - 0
Leon A Garfield 104 1 - 0
Tony Buck 109 ½ - ½
Felix Coker 111 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

375 = (975 + 400 * (7 - 1)) / 9)

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