Event: NCCA League Division 1

Opponent Rating Result
Steve N Moore 1888 0 - 1
Stephen LA Orton 2115 ½ - ½
Antony C Hall 1930 ½ - ½
Roy Hughes 2033 0 - 1
Steve J Pullinger 1923 ½ - ½
Ayomikun Adegboye 1733 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1870 = (11622 + 400 * (1 - 2)) / 6)

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