Learner Tien vs Frances Tiafoe

The market has already made up its mind on Learner Tien v Frances Tiafoe in the ATP Tour (Wed, 19 Aug, 01:00 am): stripping bookmaker margin out of 2 price feeds gives Learner Tien 55% against 45% for Frances Tiafoe.

Fair odds on Learner Tien sit at 1.82; the best available price is 1.73 at Ladbrokes; Frances Tiafoe pays up to 2.11 at Unibet. Average margin on this match is 7.3% — anything above fair value is worth taking, anything below it is paying the bookmaker's spread.