Event: 5th Simon Bartlett Memorial Open

Opponent Rating Result
Spencer Lawrence 1742 ½ - ½
Max Walker 2065 ½ - ½
Pengxiao Zhu 1960 1 - 0
Jack Liu 2170 1 - 0
Mike P Waddington 2102 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2168 = (10039 + 400 * (2 - 0)) / 5)

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