Event: Division 2

Opponent Rating Result
Peter J R Oliver 1589 ½ - ½
Gary Monks 1631 0 - 1
Mike Peers 1452 ½ - ½
Victor J Brown 1534 0 - 1
Philip Sykes 1523 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1466 = (7729 + 400 * (1 - 2)) / 5)

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