Event: Division Four

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Opponent	Rating	Result
Michael J Harrington	124	½ - ½
Mike Warden	119	1 - 0
Arjun Pyda	130	0 - 1
Stuart E Wood	93	1 - 0
John P Donovan	91	1 - 0
Chris Heathcock	90	1 - 0
Stan Grayland	115	0 - 1
David H Watkin	97	0 - 1

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

157 = (859 + 400 * (4 - 3)) / 8)