Event: Doncaster Handicap League

Opponent Rating Result
Richard E Desmedt 141 1 - 0
Steven R Brooks 115 1 - 0
John P Mainwaring 136 1 - 0
Ian Farrow 104 1 - 0
John E Beech 123 1 - 0
Alan J Smith 121 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

457 = (740 + 400 * (5 - 0)) / 6)

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