Event: Lewisham Club Championship 2023

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Opponent Rating Result
Matthew Helsby 0 1 - 0
Martin G Gruau 1917 0 - 1
Mark M Robertson 2037 0 - 1
Miki Zmudzinski 1542 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1374 = (5496 + 400 * (2 - 2)) / 4)

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