Event: SCCA Division 2 19/20

Opponent Rating Result
Vicky B Allen 117 ½ - ½
Edgar Nightingale 104 1 - 0
Samuel Gaffney 139 0 - 1
David P Green 116 ½ - ½
Colin A Roberts 135 0 - 1
David Welsh 112 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

121 = (723 + 400 * (2 - 2)) / 6)

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