Event: 6-Board Division 1

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Opponent	Rating	Result
Trevor Harper	136	½ - ½
Jim Miklevicz	133	0 - 1
Scott Nicholson	160	0 - 1
John E Sugden	112	½ - ½
Andrew D Bettley	148	0 - 1
Jim Miklevicz	133	½ - ½
Giles Dunn	150	1 - 0

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

25 = (972 + 400 * (1 - 3)) / 7)