N-body RV fitting curves of nine close binaries with a_B < 85 au, including HD 5608 Ab, HD 126614 Ab, HIP 107773 Ab, 70 Vir Ab, HIP 94235 Ab, WASP-20 Ab, Gliese 725 Ab, WASP-76 Ab and TOI-640 Ab. We derived the dynamical minimum masses of these planets with the mass deviations ∣ΔM_p∣ = 11.7668, 6.7986, 10.7851, 77.1565, 46.8170, 8.551, 0.0012, 9.3861, and 2.9133 M_⊕, respectively.