Event: League Division 3

Opponent Rating Result
Andrew Zigmond 1632 0 - 1
Howard Brears 1647 ½ - ½
Jim R Postill 1447 1 - 0
Steve DG Huxley 0 ½ - ½
Mike Hegan 1587 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1343 = (6313 + 400 * (2 - 1)) / 5)

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