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Abstract Background Static assessments of the foot are commonly advocated within the running community to classify the foot with a view to recommending the appropriate type of running shoe. The aim of this work was to determine whether selected static foot assessment could predict medial longitudinal arch (MLA) motion during running. Methods Fifteen physically active males (27 ± 5 years, 1.77 ± 0.04 m, 80 ± 10 kg) participated in the study. Foot Posture Index (FPI‐6), MLA angle and rearfoot angle were measured in a relaxed standing position. MLA motion was calculated using the position of retro‐reflective markers tracked by a VICON motion analysis system, while participants ran barefoot on a treadmill at a self‐selected pace (2.8 ± 0.5 m.s−1). Bivariate linear regression was used to determine whether the static measures predicted MLA deformation and MLA angles at initial contact, midsupport and toe off. Results All three foot classification measures were significant predictors of MLA angle at initial contact, midsupport and toe off (p