Event: Summer Series

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Opponent	Rating	Result
Stephen Rodgers	1677	0 - 1
Michael J Creaney	1657	0 - 1
Ajay Selvan	1519	1 - 0

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

1484 = (4853 + 400 * (1 - 2)) / 3)