Event: Division Three

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Opponent Rating Result
James Lyons 136 ½ - ½
Chris S Rogal 150 0 - 1
Nicos Angelopoulos 117 1 - 0
Chris S Rogal 148 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

238 = (551 + 400 * (2 - 1)) / 4)

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