Event: Hepolite (Rapid Play)

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Opponent	Rating	Result
Peter D Rooney	190	0 - 1
Keith Marsh	127	1 - 0
Peter D Rooney	190	0 - 1
Angel Gonzalez	0	1 - 0
Angel Gonzalez	0	1 - 0
Christopher Bak	169	0 - 1
Christopher Bak	169	1 - 0

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

178 = (845 + 400 * (4 - 3)) / 7)