Event: Durham League Division B

Opponent Rating Result
Peter Townson 1524 0 - 1
AD Tony Shires 1586 0 - 1
Michael Siddle 1512 0 - 1
Logan Richardson 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

756 = (4622 + 400 * (0 - 4)) / 4)

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