Yet the Palmerston North trainer Ahern had success elsewhere as Check The Mail got home by the barest of noses in a thrilling Race 9, the $2600 Wanganui Chronicle C2/3.
In the 520m dash, Check The Mail caught up with McInerney's Botany Kevin right at the finishing line and after the closest of photo finishers, it was judged that Check The Mail had got there on the final bound.
Bit Coin was a distance third, trained by Turakina's Andy Duganzich.
The festival consists of 40 events which take place from Boxing Day until February 8 at holiday hotspots.
Around 300 punters attended.
"We're thrilled that so many people came out to enjoy a day of fun and the odd flutter," said event manager Bridget Belsham.