Event: Durham League Division B

Opponent Rating Result
Nathan Ekanem 2027 ½ - ½
Michael J Creaney 1650 1 - 0
James Garner 1602 1 - 0
AD Tony Shires 1581 1 - 0
Sebastian Palucha 1317 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1955 = (8177 + 400 * (4 - 0)) / 5)

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