The microlight aircraft was attempting to land at Mullingar Airfield which was waterlogged at the time. Following touchdown deep into the very short runway, braking action was poor due to the wet surface. The Pilot applied power to go-around but the aircraft came into contact with wire fencing at the departure end of the runway. The aircraft impacted heavily in a ditch a few metres beyond the runway’s end. The Pilot was seriously injured in the impact.