Event: Division 2

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Opponent Rating Result
Michael Jennings 1496 ½ - ½
Shaun Walsh 1379 1 - 0
William Waldron 1006 1 - 0
William Smith 0 1 - 0
Alan Parsons 0 0 - 1
John L Paines 1390 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

945 = (5271 + 400 * (3 - 2)) / 6)

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Opponent Rating Result
Rhys Walker 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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