Event: Division 1

Opponent Rating Result
John F Wheeler 1947 0 - 1
Keith DF Gregory 2030 ½ - ½
Matthew Deacon 1907 1 - 0
William M McDougall 1996 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2070 = (7880 + 400 * (2 - 1)) / 4)

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