Event: GST 2023 Open

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Opponent	Rating	Result
Sebastian Twisk	0	1 - 0
Julien M Shepley	0	½ - ½
Clive A Frostick	0	0 - 1
Sergiu Bivol	0	1 - 0
Ian Deswarte	0	1 - 0
Roger Emerson	0	½ - ½
Ray Tarling	0	½ - ½
Peter Hegarty	0	1 - 0

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

150 = (0 + 400 * (4 - 1)) / 8)