Event: NSDCA MMS Division 2

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Opponent Rating Result
Martin J Chadwick 1270 1 - 0
David A Hallen 1491 ½ - ½
Raymond F Rhodes 1248 ½ - ½
Ian Bates 1570 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1595 = (5579 + 400 * (2 - 0)) / 4)

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