Event: Division 1 - Davy Trophy

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Opponent Rating Result
James RG Marley 170 0 - 1
Rob Skelton 0 ½ - ½
Steve Withington 127 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-34 = (297 + 400 * (0 - 1)) / 3)

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