Event: Division 2

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Opponent Rating Result
Robert Petrovai 1632 0 - 1
John C Staplehurst 1518 1 - 0
Melvin Steele 1606 0 - 1
Clive Bellinger 1660 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1604 = (6416 + 400 * (2 - 2)) / 4)

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Opponent Rating Result
John E Lambert 1545 0 - 1
Warwick Estlea 1453 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1099 = (2998 + 400 * (0 - 2)) / 2)