Event: NSDCA Division 2

Opponent Rating Result
Julian N Hawthorne 1682 0 - 1
Joe Moxon 1558 1 - 0
Nigel Scott 1500 0 - 1
Nicholas PA Wright 1471 1 - 0
Caroline L Mountford 1603 1 - 0
Oliver Wilkes 1100 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1619 = (8914 + 400 * (4 - 2)) / 6)

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