Event: 5th Simon Bartlett Memorial Open

Opponent Rating Result
Bao Nghia Dong 2357 0 - 1
Jamie Morgan 1869 1 - 0
David L Roberts 1978 0 - 1
Pengxiao Zhu 1960 ½ - ½
David P Littlejohns 1991 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1951 = (10155 + 400 * (1 - 2)) / 5)

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