Event: 2nd Cornwalll Autumn Minor

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Opponent Rating Result
David Lightfoot 1492 0 - 1
Tony Lopez 1370 ½ - ½
Hazel Welch 1260 0 - 1
Ben Barnett 1285 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1052 = (5407 + 400 * (0 - 3)) / 4)

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