Event: MH Brown Summer League Section 2

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Opponent Rating Result
Dave Griffiths-Jones 1100 0 - 1
David P Thrun 1345 ½ - ½
F Hal Jorna 1617 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1087 = (4062 + 400 * (0 - 2)) / 3)

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