Event: Vince Skillcorn Summer Tournament 2023

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Opponent Rating Result
Harry Tennant 1582 1 - 0
Paul Weightman 1564 ½ - ½
Darren John Donnison 1501 1 - 0
Michael J Creaney 1643 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1673 = (6290 + 400 * (2 - 1)) / 4)

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