Event: Camborne QP1 2022-23

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Opponent	Rating	Result
Jeff J Nicholas	1938	0 - 1
Ben Barnett	0	1 - 0
Bryan Jones	1480	1 - 0
Ian M George	1938	0 - 1
Colin Sellwood	1885	0 - 1

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

1368 = (7241 + 400 * (2 - 3)) / 5)