After not getting past the second round in doubles in events leading up to August, Smith and partner Shane Burr reached the quarters in New Haven Grand Prix before reaching the quarters of the US Open playing alongside Andrew Castle. Smith's success in doubles continued as he and partner Otis Smith reached the finals in his next tournament, the Coquitlam Challenger in September. In Brazil in October/November, Smith won the Rio de Janeiro Challenger, reached the finals of the Ilheus Challenger, and the semis in São Paulo and Itaparica, all partnering Swede Tobias Svantesson. Then in Bossonnens, Smith won again, this time playing with Michiel Schapers. In singles he reached the quarter-finals in Rio de Janeiro and Bossonnens, but otherwise had an uneventful year. He finished 1990 World No. 261 in singles and No. 78 in doubles.
