"It's hard to put into words, it really is. I've seen some big moments on the racecourse over the years, but that's got to be right up there," said Thompson.
Inspiral experienced mixed fortunes during the 2023 season, suffering defeats in the Queen Anne Stakes at Royal Ascot and the Sussex Stakes during the Glorious Goodwood meeting. She returned to winning ways with back-to-back victories in the Group 1 Prix Jacques Le Marois at Deauville, followed by a success in the Group 1 Sun Chariot Stakes at Newmarket's Rowley Mile.
The Breeders' Cup Filly & Mare Turf was Inspiral's first try at ten furlongs, yet the filly appeared to stay every yard under an inspired ride from Frankie Dettori.
"Inspiral is a homebred filly, it was her sixth Group One and as well as that it's the way the race unfolded – it's California, it's Santa Anita.
"My legs had gone after the last furlong!"
"She obviously stayed the mile and a quarter. She probably needs the right ground and the right track, but she needed every inch on Saturday, didn't she?
"That home straight at Santa Anita is a bit short, but she needed every inch of that particular straight and she was running on at the end, which is a good sign.
"You'd like to think she'll run in another handful of Group Ones next year and let's see what she can do. As long as she's enjoying her racing and John and Thady tell us that she's in great form and wants to race, she's carrying on, which is great for us and everybody."
Looking forward to 2024, Thompson added: "I guess you might see her over the stiff mile in the Queen Anne at Royal Ascot, but we'll give 10 furlongs a shot at some stage during the summer, absolutely.
"You could potentially see her in the Nassau at Goodwood or the Juddmonte International at York. I wouldn't have thought she'd run in both of those as they'd probably be too close together, but certainly one of those could come into play.
"We can look at anything from eight to 10 furlongs, depending on the track and the ground, and hopefully we'll have another couple of great days with her. That's the objective."
