Event: Division 1

Opponent Rating Result
Graham P Alcock 1816 ½ - ½
Carl J Hetherington 1988 1 - 0
Joao AA Santos 1987 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2064 = (5791 + 400 * (1 - 0)) / 3)

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