A horrible and probably injury-hampered weekend for Mayer, I've never seen him serving so weak like that
He has absolutely no chance against Kucera and Getronic stats say that his 1st serve speed average(!!) was about 168 km/h
while Kucera's was 193 km/h
That's a difference of 25 km/h in average and if Getronic says 168 his serves have been even weaker because we know the values are always a bit "inflated".
Highest 1st serve speed:
Kucera 210 km/h
Mayer 181 km/h
that must have been the pain in his arm