Event: Division 2

Opponent Rating Result
Alexander Roberts 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Lisa Jelley 0 1 - 0
Stefan H Reiss 1395 0 - 1
Luke Howard 0 ½ - ½
Toby Conyers-Kelly 1203 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

750 = (2598 + 400 * (2 - 1)) / 4)