Unbinned transit light curves for WASP-174. The dates of the events, filters and instruments used are indicated. Light curves following the first are displaced vertically for clarity. Our best fit from the global modeling is shown by the solid lines. The residuals from the best-fitting model are shown on the right-hand-side in the same order as the original light curves. Note the precision of the GROND light curves, which have point-to-point scatters between 0.37 and 0.52 mmag.