Event: Doncaster Handicap League

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Opponent Rating Result
Martin S Simmonds 135 0 - 1
Daniel JS Sullivan 171 0 - 1
Sean O McDonald 162 0 - 1
Neil Todd 148 ½ - ½
T Ed Sowerby 126 0 - 1
David P Hatfield 117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-57 = (859 + 400 * (1 - 4)) / 6)

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Opponent Rating Result
Phillip J Battye 135 1 - 0
Steven R Brooks 115 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

325 = (250 + 400 * (1 - 0)) / 2)