Event: Online Division 1

Opponent Rating Result
Peter S Fisher 1623 1 - 0
Stephen Tulett 1425 0 - 1
Adrian Bailey 1651 ½ - ½
Dean Arond 1757 ½ - ½
Richard Vernon 1260 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1463 = (7716 + 400 * (1 - 2)) / 5)

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