Event: Northamptonshire Silver King League Division 2

Opponent Rating Result
Joshua Stojkovic 1335 0 - 1
Thomas Schloesser 1417 ½ - ½
Robert Lepley 1390 0 - 1
Ian Revitt 1384 0 - 1
Wojciech Augustyniak 1365 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1138 = (6891 + 400 * (0 - 3)) / 5)

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