Event: 4-Board Division 1

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Opponent Rating Result
Steve Hughes 1458 1 - 0
Steve J Thrower 1483 0 - 1
Darren Tomlinson 1194 1 - 0
N Charles Clayton 1467 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1501 = (5602 + 400 * (2 - 1)) / 4)

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