Event: Division 3

Opponent Rating Result
Michael J Morgan 1899 ½ - ½
Dave Mellon 1525 1 - 0
Dave Mellon 1525 0 - 1
Edward Hargreaves 1651 1 - 0
Peter Hegarty 1929 0 - 1
Sergiu Bivol 386 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1419 = (8915 + 400 * (2 - 3)) / 6)

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