Event: Worcestershire Rapidplay league

Opponent Rating Result
Stephen V Woodhouse 1888 0 - 1
Joe Rastall 1831 ½ - ½
John P Wrench 1962 0 - 1
Daniel M Lambourne 2079 0 - 1
Daniel M Lambourne 2079 0 - 1
Stephen V Woodhouse 1888 0 - 1
Joe Rastall 1831 0 - 1
John P Wrench 1962 0 - 1
Daniel M Lambourne 2079 0 - 1
Daniel M Lambourne 2079 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1608 = (19678 + 400 * (0 - 9)) / 10)

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