Event: Division 1

Opponent Rating Result
Chris S Cantrill 1973 0 - 1
Martyn Winn 1715 0 - 1
Francis J Bowers 1821 0 - 1
Liam Reed 1742 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1513 = (7251 + 400 * (0 - 3)) / 4)

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