Reve De Sivola (9/4) won his second Wessex Youth Trust Long Walk Hurdle in the mud at Ascot on Saturday.
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Nick Williams' eight-year-old won from the front under Richard Johnson much like he did last year, revelling in the conditions after plenty of rain in Berkshire turned the ground to soft (heavy in places).
At Fishers Cross was sent of the 8/11 favourite but AP McCoy was well beaten when he was unseated at the final obstacle.
Salubrious, who only ran at Cheltenham last week, travelled into the contest well and looked a danger to the eventual winner when making a mistake two out.
He was gifted second when At Fishers Cross made his error at the last, but Reve De Sivola was 10 lengths clear at the line.
Johnson said: "He's a very honest horse - he's a very good horse. He's a very, very good hurdler and we know soft ground suits him very well.''
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Reve De Sivola is unlikely to run in the Cleeve Hurdle at Cheltenham in January, which he won last year, but remains in contention for the Ladbrokes World Hurdle at the Festival in March.
Williams said: "He crashed through a couple of them, but on softer ground like this, he can really let himself down.
"I don't think we'll go for the Cleeve Hurdle again, but we will go for the World Hurdle.
"Perhaps if we can also find him an easier race in February, that might be the way to go."
Trainer Paul Nicholls said of Salubrious: "The jockey (Daryl Jacob) thought if he hadn't missed the second-last, he would have won.
"But it's still a decent effort and we know we've got plenty of staying options for him."
Sky Bet made plenty of changes to the Ladbrokes World Hurdle betting following the contest, with Reve De Sivola cut to 16/1 (from 25s) and At Fishers Cross pushed out to 12/1 (from 11/2).
Absentees Big Buck's (9/4 from 11/4) and More Of That (7/1 from 9/1) were also cut following the race.
Spokesman Michael Shinners said: "It looks more and more likely that At Fishers Cross might not be up to this level and Reve De Sivola took advantage in conditions he loves.
"More Of That could well be JP McManus' number one World Hurdle hope on this evidence and he's been trimmed accordingly."