Event: NSDCA Division 2

Opponent Rating Result
Wesley J Vickers 1643 0 - 1
Stanislaw Wojtas 1750 0 - 1
David P Price 1660 0 - 1
Nicholas PA Wright 1450 1 - 0
Matthew J Watson 1345 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1490 = (7848 + 400 * (2 - 3)) / 5)

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