The pilot stated that when braking was applied after touchdown, the aircraft did not decelerate normally. A go around was carried out, and after the aircraft became airborne, the nosewheel struck a fence. As a result the nosewheel became misaligned and the nose gear collapsed during the subsequent landing at Townsville. Upon arrival the pilot had to orbit for 5 minutes to allow a rain squall to pass. Without overflying the strip he assessed that the wind favoured a landing direction which placed him presently in a wide base position. Due to standing water on the grass strip and a tailwind component, deceleration was minimal. By the time a go around was initiated the aircraft had entered an area of long grass. The flaps were left in the landing position during the go around, this further increased drag and added substantially to the ground run.