Serena Williams likely to get the better of sister Venus
Taylor Fritz could make Thiem work hard
Amazon Prime, 4pm Friday
S Williams v V Williams
Serena Williams is likely to extend her 17-12 personal series lead over older sister Venus.
Punters can consider taking a price of 4-7 that the favourite successfully concedes her sibling a start of 2.5 games, but beware tennis handicaps can be volatile.
Thiem v Fritz
Dominic Thiem is happy that he rediscovered some form just in time for the final Grand Slam of the season, but the Austrian looks plenty short enough to frank the form of his victory over Taylor Fritz in last year's US Open.
Fritz is still rather novicey in his approach to matches – he had to fight back from two sets down to pip Mischa Zverev in his Flushing Meadows curtain-raiser.
But with hopes high that the Californian can challenge for top prizes in the near future, this could be a good time to place some faith in Fritz causing more trouble for Thiem than he did in a 6-4 6-4 4-6 7-5 New York loss 12 months ago.
Thiem stamped his mark on that clash when winning the first two sets but the ninth seed does not look to be performing at his peak this year and there may be a better chance of Fritz being more dominant on this occasion.
The early business was pretty much one-way traffic in favour of Thiem, but the market may have favoured the French Open finalist too much and so Fritz can be backed to win at least a set and upset his opponent.
T Fritz +2.5 sets
3pts 4-6 BoyleSports
1pt 10-3 BoyleSports
Makarova v Sevastova
Ekaterina Makarova, ranked only 49th in the WTA chart, has been the subject of early support to oust 19th seed Anastasija Sevastova and if the Muscovite produces her A-game, she is perfectly capable of progressing.
Makarova is one of the best players on the WTA not to have won a singles title at Grand Slam. It has been a different story in doubles, but on her own the Russian has been a rather timid creature at the business end of major tournaments.
There's still time for her to crack it, but at this early stage she should be good enough to outperform Sevastova and make it four wins out of four in hard-court clashes with the Latvian.
1pt Evs general
Punters can consider following the money and backing Borna Coric to defeat Daniil Medvedev.
But while the Croat probably ought to oblige, Medvedev is high on confidence after winning the Winston-Salem title and he did take Coric apart at Wimbledon, so the match may be best watched.
Read Racing Post Sport every day for no-nonsense previews and expert sports betting tips
Follow us on Twitter @racingpostsport
Like us on Facebook RacingPostSport