Event: Summer Open Division

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Opponent	Rating	Result
Philip D Porter	128	1 - 0
Finlay Bowcott-Terry	134	0 - 1
Golam S Ali	179	1 - 0
Robert Glass	162	1 - 0
Philip D Porter	128	1 - 0
Finlay Bowcott-Terry	134	1 - 0
Golam S Ali	179	½ - ½
Robert Glass	162	1 - 0

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

401 = (1206 + 400 * (6 - 1)) / 8)