Event: Croydon Shield

Opponent Rating Result
Adam Fysh-Foskett 2333 ½ - ½
Graham DJ Keane 2179 1 - 0
James Merriman 2079 ½ - ½
Mike Roberts 2080 ½ - ½
Mehmet Ali 1979 ½ - ½
Brendan Keenan 1960 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2235 = (12610 + 400 * (2 - 0)) / 6)

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