Event: Division 2

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Opponent Rating Result
Stefan Winman 1435 1 - 0
Leslie Andrews 1511 1 - 0
Peter Gavin 1441 ½ - ½
Ethan Heise-Patel 1275 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1716 = (5662 + 400 * (3 - 0)) / 4)

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