Event: Summer League Division 3

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Opponent	Rating	Result
Thomas Hancock	1694	0 - 1
Steve Moon	1526	½ - ½
Les P Day	1586	½ - ½
Talakalukoppa Amarnath	1450	0 - 1
David Margerison	1478	1 - 0
David Burn	1508	1 - 0
Paul L Cheshire	0	½ - ½
Peter Cooper	1662	1 - 0

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

1413 = (10904 + 400 * (3 - 2)) / 8)