seeded American Jessica Pegula 4-6, 7-6(8-6), 7-5.
Yesterday however Raducanu struggled with the windy conditions and the slice forehands and backhands from Kasatkina early before trailing in set one 5-1.
The 21 year old Raducanu held serve to reach 2-5 before Kasatkina served for the set.
Raducanu committed a backhand error then three forehand errors to drop the set.
Raducanu finished the opening set with 18 unforced errors.
The 27 year old 14th ranked Kasatkina broke serve twice to open set two and take a 4-1 lead.
Raducanu broke back to 2-4.
Raducanu struck two groundstroke errors to trail 15-40.
Kasatkina struck a crosscourt forehand passing shot winner to break serve and lead 5-2.
Kasatkina continued to mix slices with solid play and net rushes as she struck a down the line forehand volley winner to reach match point.
Raducanu hit a down the line forehand return long to end the match.
In 2021 at the US Open, Raducanu became the first British woman to win a grand slam since Virgina Wade won Wimbledon in 1977.
Raducanu, one of the most popular and marketable tennis players on the professional tennis tours, will look to deliver another stunning performance at the Wimbledon championships this year which are to be played in London July 1 - 14.