Event: 4th Cornwall Spring Minor

Opponent Rating Result
Ferdinand Lipinsky 1430 1 - 0(def)
Keith Middleton 1518 1 - 0
Ian P Blencowe 1512 0 - 1
Martyn J Maber 1485 0 - 1
Lloyd Russell 1343 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1265 = (5858 + 400 * (1 - 3)) / 4)

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