Event: Division One

Opponent Rating Result
John S Keaveney 1949 0 - 1
Roger Threlfall 1661 0(def) - 1
Santiago German 1906 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1728 = (3855 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Derek A Stockhall 1554 1 - 0
Iain Brodie 1804 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2079 = (3358 + 400 * (2 - 0)) / 2)