Event: 2021 Summer Rapid Play

Opponent Rating Result
David R Rudd 1712 1 - 0
Barry A Cheal 2192 0 - 1
Steve Zsibrita 1495 1 - 0
Andrew Du Boulay 1780 1 - 0
George Smith 1590 1 - 0
Gerald Gregory 1159 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1788 = (9928 + 400 * (4 - 2)) / 6)

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