Event: NSDCA MMS Division 2

Opponent Rating Result
David M Rose 1550 ½ - ½
David S Johnson 1623 0 - 1
Chris P Hankey 1780 0 - 1
David S Johnson 1623 1 - 0
David M Rose 1550 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1465 = (8126 + 400 * (1 - 3)) / 5)

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