Mossbank put up an impressive performance to give trainer Michael Hourigan his sixth victory in the Clonmel Oil Chase.
Hourigan was successful four times with Dorans Pride and once with Beef Or Salmon, and Mossbank joined the roll of honour with a tremendous display.
The drop in trip provided no barrier following his win over three miles at Limerick last month.
Making smooth progress, the 7 to 2 shot led two out and stormed eight lengths clear of Knight Legend. Light On The Broom was third while favourite Justified dropped back tamely after being prominent early on.
"We got a virus in the stable last year, this horse got it, so last season was a bit of a write off," said Hourigan. "It's great to see him win a race that Dorans Pride won four times and Beef Or Salmon won once. I've probably found out how to train him now, so I keep him fresh. I've no plans for him yet but I'll have a talk with (owner) Michael O'Leary."
Mossbank is, however, in the Hennessy Cognac Gold Cup at Newbury on December 1st and was cut to 10 to 1 from 14 to 1 with VC Bet. A 6lb penalty for this victory takes his weight up to 9st 8lb.
Gazza's Girl got up in the dying strides to deny Emma Jane in the EBF TA Morris Memorial Mares Chase.
Barry Geraghty always had Jessica Harrington's mare handy and made his move three fences from home in what was a wide-open contest.
The 15 to 8 favourite had to be driven out to get the better of Emma Jane close home by half-a-length. Tiarella was third.
Harrington said: "She was a bit rusty on her first run back but Barry was delighted with her, and when he went up she was good."