Event: Internal Standardplay

Opponent Rating Result
Lilia Irene Giorgetta Belvedere 1271 1 - 0
Paul Mead 1413 1 - 0
Lilia Irene Giorgetta Belvedere 1245 1 - 0
Marcin Rodzik 1494 1 - 0
John Slusar 1794 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1683 = (7217 + 400 * (4 - 1)) / 5)

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