Event: Division 3

Opponent Rating Result
Ian R Pickup 1769 0 - 1
Richard P Millener 1771 0 - 1
Alan Papier 1687 1 - 0
Jason LeRoy 1374 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1650 = (6601 + 400 * (2 - 2)) / 4)

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