Event: Online Division 2

Opponent Rating Result
Mark A Keady 1882 0 - 1
Roger R Brown 1694 0 - 1
Malcolm Price 1419 ½ - ½
Jonathan Smith 1464 1 - 0
Roger R Brown 1684 ½ - ½
Malcolm Price 1419 ½ - ½
Jonathan Smith 1450 0 - 1
David Charles Lovegrove 1480 1 - 0
Jonathan Smith 1467 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1507 = (13959 + 400 * (2 - 3)) / 9)

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