By David Yates AUBIS WALK (2.15, nap) is expected to stroll to victory at Ayr this afternoon. The eight-year-old, trained by Nicky Richards, has never finished out of the first two when completing the course in his six races under Rules. A winner over hurdles at Sedgefield in February, my selection landed a handicap chase over today’s course and distance last month. The son of Walk In The Park was second four fences from home before taking the lead with a good jump at the last and staying on well to hold off Euchan Falls by one and a half lengths. A similar display should see him land the Ayrs…