Event: Cambs Division 2

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Opponent	Rating	Result
Robin Ewbank	1367	1 - 0
Michael Kowalczyk	1413	1 - 0
Tom O'Keefe	1302	½ - ½
Kevin Stephenson	1000	1 - 0
James AS Sutherland	1450	½ - ½
Harry Seib	1050	1 - 0
Kevin Stephenson	1000	½ - ½

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

1455 = (8582 + 400 * (4 - 0)) / 7)