Event: Division Four

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Opponent Rating Result
Ionut Florin Valea 1617 0 - 1
Chris East 1557 1 - 0
Jon A Asbury 1585 ½ - ½
Roland Robson 1488 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1662 = (6247 + 400 * (2 - 1)) / 4)

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