Event: Division 2

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Opponent	Rating	Result
Liam Giles	1350	1 - 0
Robert Hurst	1584	1 - 0
Mike Peers	1435	1 - 0

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

1856 = (4369 + 400 * (3 - 0)) / 3)