Event: League Division 3

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Opponent	Rating	Result
Eric J Brodie	1833	0 - 1
Edward Rivlin	1331	1 - 0
Ben Van Loo	0	1 - 0

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

1188 = (3164 + 400 * (2 - 1)) / 3)