Shoddy defense hurt Walker Weickel in the early innings and the TinCaps committed five errors in a 7-4 loss to Dayton at Fifth Third Field on Thursday.
Weickel, who lasted 4 1/3 innings, was charged with four runs but only one was earned.
The TinCaps (13-20) have shuffeled personnel but remain unable to cut their mistakes in the field.
Fernando Perez, who had been relatively sure-handed, made his seventh start at third base and committed three errors to match his total from 28 other appearances.
His misplay of a two-out grounder gave the Dragons a 2-0 lead in the second.
Still, Dayton (20-13) had to eke out a close game, going ahead in the eighth on Jeff Gelalich’s RBI double.
The Dragons added two insurance runs off Wilson Santos (0-1) and retired the side in order in the ninth.
Chase Jensen had a two-run double and Mallex Smith an RBI single as Fort Wayne tied it at 3 in the fifth.
Dane Phillips, hitting .322, had an RBI single in the sixth for the TinCaps.
Weickel gave up a run in each of the first three innings, each set up by an error from his infield.
The three-game set resumes today with right-hander Adrian De Horta (0-1) scheduled to start for Fort Wayne.