Accretion rate with respect to the total outer pebble flux, as function of embryo mass. The points show the embryos with their evolution shown in steps of 10⁴ yr, for the 3 Myr duration of the gas disc phase (runf5-1). The colours correspond to the eccentricities of the bodies, as indicated by the colour bar. The grey dashed line is the analytical expression Eq. (10), which represents 3D accretion in the strong coupling limit. The strong reduction in accretion rate at late time is mainly due to pebble filtering by the outer embryos.