Event: Division B

Opponent Rating Result
Ken Gorman 1461 1 - 0
Darren Pickering 1567 ½ - ½
Geoffrey Pennington 1779 ½ - ½
Patrick N Coleman 1511 1 - 0
Paul O'Mara 1662 ½ - ½
Darren Pickering 1567 0 - 1
Paul O'Mara 1662 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1658 = (11209 + 400 * (2 - 1)) / 7)

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