Event: 2nd Yorkshire Rapidplay Championships - Minor

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Opponent	Rating	Result
Garry Kitchin	1314	1 - 0
Nathan Godfrey	1387	1 - 0
Matthew Grimley	1456	0 - 1
Carlo Cavaliere	1560	1 - 0
Louis Needham	1421	1 - 0
Mikhail Kupriyanov	1559	1 - 0
Steve Crow	1550	0 - 1

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

1635 = (10247 + 400 * (5 - 2)) / 7)