Great White Shark gave Willie Mullins his third successive victory in the Connacht Hotel (Q.R.) Handicap, the feature event on the first day of the Galway Festival.
Having saddled Whiskey Sour and Uradel to victory in the last two years, Mullins fielded four this time with Mr Ajudicator sent off the 9-4 favourite for the Closutton handler.
However, it was 8-1 shot Great White Shark who triumphed in the hands of Jody Townend, sister of champion jockey Paul.
Townend had to show plenty of patience in the two-mile-one-furlong heat, with just a couple of runners behind Great White Shark turning into the straight.
However, when she gave the signal, Great White Shark finished with a flourish down the outside to grab the glory by a length and three-quarters from Dalton Highway with Litterale Ci third.
Watch Great White Shark (8-1) win the Connacht Hotel Handicap for Jody Townend and Willie Mullins @Galway_Races #rteracing pic.twitter.com/xsXIUcv8UV— RTÉ Racing (@RTEracing) July 29, 2019
Mr Ajudicator suffered a troubled passage but eventually made late headway for fourth.
Townend was thrilled to register her first win since returning from injury in a high-profile prize.
She said: "I can't believe it, what a buzz. It's my first winner since I came back (from injury) so what a way to come back.
"I broke my T12 vertebrae and I had to get six screws and two rods put in. I was supposed to be back around February, but it got infected and the infection got into my spine so all the metal had to be taken out. I was nine months on the sidelines.
"She can be quite free, but wasn't too bad today - I didn't want to light her up and we were going a million. Willie said if I have to take it handy, then take it handy.
"Coming into the dip, we went for a gap and nearly got murdered. So I said 'we'll go the wide route' and once she got rolling up the hill, there was no stopping her.
"I'm with Willie from Monday to Thursday, and Ruby (Walsh) and Paul help me out whenever they can.
"I knew she had a fair chance as she had been working well at home."
Mullins added: "Fantastic for Jody. I think it was her first ride in the race. Some guys wait all their lives and never ride the winner of it, but Jody looked like an old hand, coming from off the pace.
"I just said to her 'see how you break. If you don't break well, wait and wait and come wide, and keep out of trouble'. And that's what she did. Once the mare started to pass one or two horses, she found that she was liking it, and the two of them just took off.
"Jody said she couldn't believe how well she was travelling in the dip and once she passed one or two, the mare just took off.