Z Boxall Trainers Z Boxall Grand National Wins Z Boxall has never trained a horse that has won the Grand National.Their best finish to date was in 1873 with Ryshworth ridden by William Boxall who came 2nd. Full Results Year Horse Result Prize Money Jockey 1873 Ryshworth 2 - William Boxall 1872 Ryshworth Fence - Fell - T Boxall 1872 Snowstorm Fence - Fell - A Thorpe