Event: Division 1

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Opponent Rating Result
John W Bass 1954 ½ - ½
Neil R McDonald 2491 0 - 1
Fedja Zulfic 2217 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2087 = (6662 + 400 * (0 - 1)) / 3)

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