Event: 4-Board Division 1

Opponent Rating Result
Mark Robinson 1375 ½ - ½
Steve J Thrower 1457 0 - 1
Dominik Pitel 1352 0 - 1
Darren Tomlinson 1076 0 - 1
Steve Hughes 1439 0 - 1
Mark Robinson 1375 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1079 = (8074 + 400 * (0 - 4)) / 6)

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