Event: 5th Somerset New Year Intermediate

Opponent Rating Result
David R Rogers 0 ½ - ½
Christopher M Southall 1598 0 - 1
Phil B Pinto 1689 ½ - ½
Dale Sibborn 0 0 - 1
Roy A Ludlow 1645 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

906 = (4932 + 400 * (1 - 2)) / 5)

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