Event: South Cheshire Shield

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Opponent	Rating	Result
Roger Coleman	1279	1 - 0
Thomas Bailey	1374	0 - 1
Jamie Roberts	1450	½ - ½
Rob Aked	1310	1 - 0
Pawel Stanny	1385	0 - 1

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

1360 = (6798 + 400 * (2 - 2)) / 5)