Two-dimensional distributions of the mass ratio (q), effective inspiral spin (χ_eff), and effective precession spin (χ_p) of events polluting the m = 10 − 15 M_⊙ gap (pink and blue shaded region; 90% credibility) and the median (pink and blue dots). The medians of the posteriors of the events outside the gap are also shown (black dots). Events polluting the gap (GW190412, GW151226, and GW200225), which may have formed via a channel different from isolated binary evolution, are highlighted with stars.