Event: Division 3

Opponent Rating Result
Roy G Watson 1549 0 - 1
Mike Nevin 1636 0 - 1
David Collyer 1692 0 - 1
Jon A Asbury 1566 1 - 0
Penny A Wood 1454 1 - 0
Barry Knee 1438 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1489 = (9335 + 400 * (2 - 3)) / 6)

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