Flemenstar unplaced on return
Flemenstar's race-fitness counted against him on his Navan comeback as he was no match for Felix Yonger in the Grade Two Webster Cup Chase.
Tony Martin's three-time Grade One winner was having his first start for 503 days and made most of the running in the hands of Keith Donoghue.
He still held a slight advantage after the third-last fence, but the tank emptied quickly as the race-fit Felix Yonger took control, with Flemenstar fading out of the equation.
Felix Yonger, trained by Willie Mullins and ridden by Ruby Walsh, made a bit of a hash of the final fence, but the 11-10 favourite still had three and three-quarters of a length in hand of Argocat at the line.
Martin said of Flemenstar: "He jumped great and it was only from the second-last that he got very tired. He gave him (Donoghue) a great ride until two out and hopefully he's all right in the morning."
Felix Yonger could now run at the Punchestown Festival.
Mullins said: "I was very happy to see him going on that ground. It was very sticky, heavy ground and I didn't think he'd go on it. The fact that he's won over two and a half miles on that means we could open up in trip more on better ground.
"I'm not sure where he'll go next but he'll get an entry for the Champion Chase at Punchestown. He's improving."
The result completed a double for the Mullins-Walsh team after Jarry D'Honneur boosted his confidence with a clear-cut triumph in the navanracecourse.ie Novice Chase.
Beaten when getting rid of Tony McCoy in a Grade One at Leopardstown, the 30-100 favourite jumped satisfactorily in the main and didn't have to break too much of a sweat to beat Toubaloo by five lengths lengths.
Mullins said: "He settled nicely and he was a bit tidier in his jumping.
"The Ryanair at Fairyhouse will probably come a bit soon and we may look at Punchestown, although if there is something in between where he didn't have to take on the top novices we'd look at that."
All You Need (11-8 favourite) has kept better company than that she faced in the Irish Stallion Farms EBF Mares Maiden Hurdle and she successfully put a Leopardstown mishap behind her with a comprehensive victory.
Trainer Alan Fleming said: "We thought she was way better than she was but a few of ours were under the weather. She's getting a bit stronger now and we'll definitely have to run her somewhere. Fairyhouse might come a bit soon and we'll maybe find something in Punchestown for her."
That initiated a brace for young jockey David Mullins, who was determined in booting Bog War (5-2 favourite) home in the Follow Navan On Twitter Handicap Hurdle.
Sizing Titanium was another to justify strong support in the Annual Family Day 17th May (C&G) Maiden Hurdle. Backed down to 8-11, the Jim Dreaper-trained gelding was pushed to the front before two out and kept going to see off The Tractor Man by a length and three-quarters.
Dreaper said: "That will probably be it for the season. I know it's a bit of a cliche but he's a chaser in the making. He's won a point-to-point so he should jump all right, and we can look forward to next winter."
Paul Flynn's 5-2 favourite Boher Call put in a gutsy performance to take the Follow Navan On Facebook Handicap Chase, leading all the way under Mark Enright and going clear approaching the last before holding Derrychrin's late charge by a head.