Event: Division 1

Opponent Rating Result
Roy Phillips 2193 1 - 0
Tommy Wilkins 1779 1 - 0
Stephen J Meek 2097 1 - 0
Mark I Walker 2151 1 - 0
Derek C Pugh 2086 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2381 = (10306 + 400 * (4 - 0)) / 5)

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Opponent Rating Result
Peter J Kirby 2043 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2043 = (2043 + 400 * (0 - 0)) / 1)