Event: Silver Rook

Opponent Rating Result
Richard E Desmedt 142 0 - 1
Hugh Thornton 116 ½ - ½
Norman G Andrews 128 ½ - ½
Margaret Rowley 94 1 - 0
Mark Shelmerdine 121 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

120 = (601 + 400 * (1 - 1)) / 5)

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