  The transition motion of a point particle around the last stable orbit of
Kerr is described at leading order in the transition timescale expansion.
Taking systematically into account all self-force effects, we prove that the
transition motion is still described by the Painlev\'e transcendent equation of
the first kind. Using an asymptotically matched expansions scheme, we
consistently match the quasi-circular adiabatic inspiral with the transition
motion. The matching requires to take into account the secular change of
angular velocity due to radiation-reaction during the adiabatic inspiral, which
consistently leads to a leading-order radial self-force in the slow timescale
expansion.
