Event: Worcestershire Rapidplay league

Opponent Rating Result
Aiden Griffiths 1330 1 - 0
Scott Oxtoby 1651 0 - 1
T Giles Stanton 1541 1 - 0
Aiden Griffiths 1330 1 - 0
Scott Oxtoby 1651 1 - 0
T Giles Stanton 1541 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1774 = (9044 + 400 * (5 - 1)) / 6)

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