Event: City Chess Rapid 2024-25 Div 2

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Opponent	Rating	Result
Tony D Wells	0	0 - 1
Valentin Ivanov	0	0 - 1
John Lascelles	0	1 - 0
Rasika Atapattu	0	1 - 0

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

0 = (0 + 400 * (2 - 2)) / 4)