The Great Britain Federation Cup pairing put up a tremendous fight against the number four seeds from Russia, Ekaterina Makarova and Elena Vesnina, on Number 3 Court before going down 7-5 4-6 6-4.
Smith tweeted: “Loved every minute being out there with this legend @JossRae91. Thank you for all the support, amazing atmosphere!”
Smith and Rae will be on opposite sides of the net when they start their mixed doubles campaigns on Monday, partnering Neal Skupski and Colin Fleming respectively.
Team Bath MCTA’s Eden Richardson was beaten 6-4 6-3 in the first round of the Junior Wimbledon girls’ singles by Taylor Johnson of the United States on Sunday.
Richardson will gain more experience at SW19 when she contests the girls’ doubles with fellow Brit Ema Lazic – they have been drawn against Mayuka Aikawa of Japan and Switzerland’s Ylena In-Albon in the first round.