Event: IM Brown

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Opponent	Rating	Result
Sylvan Clarke	1327	½ - ½
Peter Gregory	1552	0 - 1
Peter T Perkins	1663	½ - ½
Geoff Frost	1837	0 - 1
Michael I Connor	1753	0 - 1
Vinayak Prasad	1351	1 - 0
Brad Slater	1710	0 - 1
Angelica Rowe	1614	½ - ½

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

1451 = (12807 + 400 * (1 - 4)) / 8)