Event: Division 5

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Opponent Rating Result
Paul D Armiger 406 0 - 1
Scott Leadbetter 1608 0 - 1
Alan G Bice 1660 ½ - ½
Edward Hargreaves 1645 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1130 = (5319 + 400 * (0 - 2)) / 4)

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