Event: Worcestershire Rapidplay league

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Opponent	Rating	Result
Rob Sutton	1659	1 - 0
Jamie Steward	1592	1 - 0
Antonia (Toni) T Reed	1569	1 - 0
Daniel Jones	1428	1 - 0
Eric Horwill	1734	0 - 1
Rob Sutton	1659	½ - ½
Daniel Jones	1428	1 - 0
Eric Horwill	1734	1 - 0
Antonia (Toni) T Reed	1569	0 - 1
Jamie Steward	1592	1 - 0

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

1796 = (15964 + 400 * (7 - 2)) / 10)