Event: Doncaster League

Opponent Rating Result
Sean O McDonald 1914 0 - 1
Farrell P Clifford 1719 ½ - ½
Pete Micklethwaite 1993 0 - 1
Alan J Smith 1585 ½ - ½
Neil R Lowther 1884 0 - 1
Phillip J Battye 1614 1 - 0
Martin Presley 1656 1 - 0
Martin J Sheard 1885 ½ - ½
Nicholas Mahoney 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1539 = (14250 + 400 * (2 - 3)) / 9)

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Opponent Rating Result
Peter Convery 1890 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1890 = (1890 + 400 * (0 - 0)) / 1)