Event: AG Sunderland

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Opponent Rating Result
Samiksha Yerabati 1339 0 - 1
David Taylor 1451 1 - 0
Roy Thomas 1438 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1276 = (4228 + 400 * (1 - 2)) / 3)

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