2 Virginia its first loss, 69-61, Saturday in Charlottesville, Va.Marcus Sasser and Tramon Mark added 13 points each, while Jamal Shead had 11 points and four assists.
Furst finished with 12 points and 13 rebounds, and Smith posted 10 points and 12 rebounds.
Sam Mennenga led Davidson (7-4) with 14 points and Foster Loyer, Fletcher's brother, had 11 points.
Kevin McCullar contributed 11 points, 11 rebounds and five steals, while KJ Adams and Jalen Wilson added 11 points apiece.
Trayce Jackson-Davis had 13 points and a career-high nine blocked shots for Indiana (8-3), which lost its second straight game.