Event: League Division 3

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Opponent	Rating	Result
Ian D Strickland	1613	1 - 0
David Callaghan	1113	1 - 0
Liam Kennedy	1419	0 - 1

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

1515 = (4145 + 400 * (2 - 1)) / 3)