Event: Northamptonshire Silver King League Division 2

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Opponent	Rating	Result
Robert Mills	1295	1 - 0
Reece Hedley	1392	1 - 0
Ian Revitt	1384	½ - ½
Robert Lepley	1409	0 - 1
Dan Becker	1077	½ - ½

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

1391 = (6557 + 400 * (2 - 1)) / 5)