Event: Division Two

Opponent Rating Result
Jonathan Welton 1697 0 - 1
Jim Delderfield 1762 ½ - ½
Colin J Lyne 1869 0 - 1
Malcolm H Cooper 1852 ½ - ½
Yury Krylov 1531 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1582 = (8711 + 400 * (0 - 2)) / 5)

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