Actually Opelka's ace ratio dropped in the second set. 'Just' the 8 aces in 6 service games. But Dan's return point win ratio dropped markedly too to 4/28 (14%).
Yay, well done to Cam, that's his 90 SF points from here last year successfully defended ( has another 90 SF points from Las Cabos last year due off on Monday week ).
Not that there was that much live commentary/discussion during the match just gone at prime time, but Cam vs Fritz/Kecman will be at midnight tomorrow which isn't great.
The final is 10pm on Sunday which is slightly better.