Event: Division Four

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Opponent	Rating	Result
Steven R Colwell	1503	½ - ½
David J Carpenter	1541	½ - ½
Roger Bray	1555	1 - 0
Waleed Tahir	1526	½ - ½
Paul Bignall	1481	½ - ½
T Giles Stanton	1585	½ - ½
Mark Tangri	1533	0 - 1
Penny A Wood	1443	0 - 1
Ken Wise	1515	½ - ½
Chris W Pitt	1627	½ - ½

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

1491 = (15309 + 400 * (1 - 2)) / 10)