HR diagrams for WASP-52, 58, 59, and 60 (Yonsei-Yale stellar models). Each host star is denoted by a blue cross as a function of the stellar density and the effective temperature. Solid, black lines are the isochrones, and red, dashed lines are the evolutioanry tracks for different masses. WASP-52 (upper, left): 0.1 Gyr isochrone, and then 1 Gyr to 15 Gyr in 1 Gyr increments, and mass tracks from 1.0 to 0.7 M_⊙ in 0.1 increments from left to right. WASP-58 (upper, right): 1 to 20 Gyr in 1 Gyr increment isochrones, and mass tracks from 1.1 to 0.7 M_⊙ in 0.1 increments from left to right. WASP-59 (lower, left): 0.1, 0.4, 0.6 Gyr isochrones, then 1 Gyr to 10 Gyr in 1 Gyr increments, and 0.7 and 0.6 M_⊙ mass tracks from left to right. WASP-60 (lower, right): 1 Gyr to 10 Gyr in 1 Gyr increments, and mass tracks from 1.3 to 0.70 M_⊙ in 0.1 increments from left to right.