Event: SCCU County Championship: U1650

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Opponent	Rating	Result
Callum Hayes	1600	1 - 0
Marek K Turowski	1555	0 - 1
Alex I Brett	1540	½ - ½
Neil Lang	1405	0 - 1

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

1425 = (6100 + 400 * (1 - 2)) / 4)