Event: Division Three

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Opponent	Rating	Result
Richard Evans	1550	½ - ½
Marko Hoogenkamp	936	1 - 0
Barry R Smith	1577	½ - ½
Garry Evans	1670	½ - ½
John F Fahy	1720	½ - ½
Ray Bettam	1482	½ - ½
Peter J Hughes	1463	½ - ½
Sam Duffield	1219	1 - 0
Derek Green	1579	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1511 = (13196 + 400 * (2 - 1)) / 9)