Daniel Ennis of the Social Democrats maintains a commanding lead in the Dublin Central by-election market due to his established local profile as a councillor and close ties to the constituency's sitting TD Gary Gannon. Traders appear to view his active door-to-door campaign and party momentum as decisive advantages ahead of the May 22 poll, triggered by Paschal Donohoe's departure. Janice Boylan, Sinn Féin's candidate and running mate to party leader Mary Lou McDonald, trails as the primary challenger in a constituency where Sinn Féin retains significant support. Gerry Hutch, the independent contender with prior electoral experience, draws limited protest backing but faces structural barriers from mainstream party organization. Recent developments, including Ennis's public response to online claims and intensified canvassing across all major candidates, have reinforced the current ordering without major shifts in the final days.