Event: Division One

Opponent Rating Result
Charles ES Bullock 1931 ½ - ½
Alastair Mitchell-Baker 1844 1 - 0
Mark Payne 1769 ½ - ½
Nigel D Smith 1863 ½ - ½
Blaise Welsh 1327 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1907 = (8734 + 400 * (2 - 0)) / 5)

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