Event: Derby & District Division 1

Opponent Rating Result
Simon N Gilmore 2067 0 - 1
Brian Lever 1536 1 - 0
Martin Pettinger 2029 ½ - ½
Martin Cobham 1752 ½ - ½
Steven J Burke 1912 ½ - ½
Andrew Robins 1791 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1848 = (11087 + 400 * (1 - 1)) / 6)

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