Event: Les Bell Cup

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Opponent	Rating	Result
Stephen Livermore	1746	1 - 0
Andrew S Pandian	1605
Chris Jones	1615	1 - 0(def)
Matthew J Morter	1603	1 - 0
Graham R Jones	1534	½ - ½
Stephen F Crane	1427	0 - 1
Madhurima De	1292

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1678 = (6310 + 400 * (2 - 1)) / 4)