Event: Douglas Championship

Opponent Rating Result
Callum McLean 1450 0 - 1
Ben Bosworth 1291 0 - 1
Colin Watkinson 1300 0(def) - 1
Joseph Saunders 1450 1 - 0
Howard EJ Dobson 1739 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1283 = (5930 + 400 * (1 - 3)) / 4)

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