Event: Division Three

Opponent Rating Result
Roger Threlfall 1720 1 - 0
Andrew N Lake 1839 1 - 0
Peter L Loach 1615 ½ - ½
Michael Share 1688 ½ - ½
Mike Wildboar 1806 ½ - ½
Mike P Maher 1705 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1862 = (10373 + 400 * (2 - 0)) / 6)

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