Event: Mini League

Opponent Rating Result
Pete R Sheppard 0 1 - 0
Stephen Haggas 98 1 - 0
Andrew Parker 52 1 - 0
Eric P Davies 103 ½ - ½
Jim Bird 98 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

390 = (351 + 400 * (4 - 0)) / 5)

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