Event: 4-Board Division 1

Opponent Rating Result
Lester Jones 111 ½ - ½
Jeff Foster 110 0 - 1
Shaun E Taylor 131 ½ - ½
Nick Whetton 113 1 - 0
Peter T Perkins 118 0 - 1
David J Gibson 113 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

49 = (696 + 400 * (1 - 2)) / 6)

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