Event: Worcester & District League

Opponent Rating Result
Paul Thomas 1357 1 - 0
Jacques Olden 1600 0 - 1
Daniel Downie 1490 1 - 0
Paul Thomas 1357 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1451 = (5804 + 400 * (2 - 2)) / 4)

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