Event: Division 2

Opponent Rating Result
Fred S Dickson 1577 ½ - ½
Ed H Goodwin 1833 1 - 0
Julian H Summerfield 1846 1 - 0
Wojciech Slupski 1422 ½ - ½
Alan Eley 1490 1 - 0
Andrew Collins 1814 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1797 = (9982 + 400 * (3 - 1)) / 6)

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