Event: Broadland Chess Club Knockout

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Opponent	Rating	Result
Ken Farquhar	1555	1 - 0
Luca Emmerson	1581	1 - 0
Steve J Pullinger	2003	1 - 0

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

2113 = (5139 + 400 * (3 - 0)) / 3)