Event: Division 4

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Opponent Rating Result
John H Sleggs 1516 0 - 1
Jaime Ashworth 1402 1 - 0
Eamonn G Howard 1329 1 - 0
Mark-Anthony Cullen 1805 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1513 = (6052 + 400 * (2 - 2)) / 4)

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