Event: Summer League (Pool B)

Opponent Rating Result
Richard George 1770 0 - 1
Alun Richards 1708 1 - 0
Richard George 1770 1 - 0
Alun Richards 1708 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1939 = (6956 + 400 * (3 - 1)) / 4)

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