The accuracy of maximal oxygen uptake (VO_2max) prediction methods is important for collegiate runners and is an economical alternative to traditional laboratory testing. This investigation examined VO_2max estimation accuracy of Polar M430 lights on (PM430 ON), Polar M430 lights off (PM430 OFF), Garmin 235 (G235), and VDOT in 12 NCAA division I cross-country athletes. Data was compared to laboratory-measured VO_2max. Compared to the criterion (56.51 ± 6.00 ml.kg⁻¹.min⁻¹), the G235 (59.43 ± 4.54 ml.kg⁻¹.min⁻¹), PM430 ON and PM430 OFF (63.80 ± 5.32 ml.kg⁻¹.min⁻¹ and 62.92 ± 5.28 ml.kg⁻¹.min⁻¹) overestimated VO_2max. VDOT (55.63 ± 7.12 ml.kg⁻¹.min⁻¹) was slightly lower than the criterion. Out of the three prediction methods, only VDOT yielded comparable estimates to the criterion. Regarding the devices, the results showed that G235 was more accurate than the PM430. In conclusion, we recommend that collegiate runners use the VDOT and G235 as alternatives to laboratory testing.