Event: South Cheshire Shield

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Opponent	Rating	Result
Stephen Brown	1381	1 - 0
Jamie Roberts	1450	1 - 0
Mycle Scheuer	1474	½ - ½

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

1702 = (4305 + 400 * (2 - 0)) / 3)