Event: Doncaster Bell Trophy

Opponent Rating Result
Phillip J Battye 146 0 - 1
Martin Presley 1648 ½ - ½
Steven Devonshire 141 0 - 1
Phillip J Battye 146 0 - 1
Martin Presley 1648 0 - 1
Steven Devonshire 141 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

378 = (3870 + 400 * (0 - 4)) / 6)

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