John Sadler keeps supreme confidence in Full Serrano heading into the Pacific Classic: "He is ready"

The trainer spoke with The BloodHorse regarding the Argentine standout, who this Saturday will seek redemption at Del Mar, where he finished second in 2024; having overcome the hoof issue that kept him out of the San Diego Handicap(G2), the son of Full Mast arrives backed by a series of sharp workouts and the unwavering trust of his conditioner

DEL MAR, California (Special for Turf Diario).— If anyone knows the path to winning the Pacific Classic Stakes(G1), it is John Sadler. Accelerate (Lookin At Lucky), Higher Power (Medaglia D'Oro), Tripoli (Kitten's Joy), and the unforgettable Flightline (Tapit) delivered four victories in Del Mar's flagship race, and this Saturday the veteran trainer will attempt to add a fifth with a horse he has always held in special regard: Full Serrano.

The Argentine standout will return to the 2,000 meters of the race he came within just half a length of winning in 2024. He does so following a preparation that did not go exactly as planned, but over the last few weeks has left John Sadlercompletely satisfied.

In a rich interview published by The BloodHorse and penned by Nicole Russo, the conditioner once again shined the spotlight on the son of Full Mast bred by Haras Gran Muñeca, winner of the 2024 Breeders' Cup Dirt Mile (G1), who found in Del Mar the setting for his finest performances since arriving from Argentina.

The first major obstacle on the road to the Pacific Classic surfaced on July 18. Full Serrano was scheduled to run in the San Diego Handicap (G2), the traditional prep for the summer's main goal, but was scratched that very morning due to a hoof issue.

The situation forced a shift in timing. When Full Serrano returned to the work tab eight days later, John Sadler felt the horse had given the signal he was waiting for. "It was a good step forward," the trainer explained after watching him cover 800 meters in 47s80/100.

He immediately laid out the countdown he had in mind: "For him to run in the Classic, we are going to need four works." All four arrived. The Argentine stepped on the gas again on August 2 with a sharp 1,000-meter breeze—second best among 63 horses working that distance that morning—and followed up with demanding 1,200-meter drills.

The final stage cleared up any remaining doubts. "Full Serrano is confirmed," John Sadler noted a few days ago while still weighing whether to also run the Chilean-bred The Goat (Midshipman). Regarding the latter, he explained he needed to confer with the owners about other options, but left no room for interpretation about the Argentine runner: "Full Serrano is in."

This past Saturday, he tested him once more, and Full Serrano responded by stopping the clock in 1m11s for the 1,200 meters, completing the roadmap his trainer had charted after the foot trouble. It is no coincidence that John Sadler did everything in his power to reach the Pacific Classic. Full Serrano loves Del Mar like few others do.

"It is one of his favorite tracks," the trainer pointed out at the start of the meeting. "He has won two races and has two seconds here, so we are looking forward to coming back. We think it's going to be fun."

The numbers almost understate what the horse achieved afterward. In his first American campaign, Full Serranopromptly won an allowance optional claiming race at Del Mar, and just a few weeks later was thrown straight into the Pacific Classic in what was only his second U.S. start. He ran a huge race. He took the lead, dug in all through the stretch, and only Mixto (Good Magic) managed to edge him out right at the end by half a length.

Definitive confirmation arrived in November 2024, when John Sadler decided to cut him back in distance for the Breeders' Cup Dirt Mile (G1). Full Serrano dominated a field of 13 rivals, scoring by 1 1/2 lengths under Joel Rosario.

"This horse came into my hands and since we've had him here he has done great," John Sadler said that afternoon. He even revealed that a bout of fever had prevented him from contesting a prep race, and had that not happened, he might very well have ended up in the Breeders' Cup Classic (G1) instead of the Dirt Mile.

That victory seemed to open up massive horizons, but shortly thereafter a injury forced a layoff.

Full Serrano spent much of 2025 on the sidelines and didn't return until September, again at Del Mar, winning by a wide margin. He later finished second in the Goodwood Stakes (G1) and ended up fifth while trying to defend his title in the Breeders' Cup Dirt Mile, after encountering trouble entering the first turn.

Even then, John Sadler kept his faith intact. "He is as good as he was last year. He's been here longer now, so he's a bit more seasoned. He is ready," he explained ahead of that Breeders' Cup. He added another point that takes on special relevance now that he returns to 2,000 meters: "We think he can run farther."

His two starts in 2026 did not dim that opinion either. In January, he finished third in the Pegasus World Cup Invitational Stakes (G1) at Gulfstream Park, behind Skippylongstocking (Exaggerator) and White Abarrio (Race Day), and on March 28 finished fourth in the Oaklawn Mile Stakes (G3).

However, that Oaklawn result was highly deceptive. Full Serrano stumbled at the start, conceded several lengths, was left last, and then had to cover much of the turn and straight very wide.

John Sadler was emphatic after that performance. Without the start incident, he said, "he would have won." "It was just one of those races," he lamented, before deciding the horse would get a breather so everything could target Del Mar once again.

That is precisely the path leading into this Saturday's Pacific Classic. For John Sadler, it will also be a special race. He has already won it with Accelerate in 2018, Higher Power in 2019, Tripoli in 2021, and Flightline in 2022. Two of them, Accelerate and Flightline, went on to capture the Breeders' Cup Classic.

Flightline's performance remains among the greatest displays in local racing history: he won that Pacific Classic by 19 1/4 lengths and covered the 2,000 meters in 1m59s28/100, just off the 1m59s11/100 track record set by Argentine legend Candy Ride (Ride the Rails) in 2003.

Curiously, John Sadler is experiencing these days with a piece of Flightline's future in his own barn. There he trains Inshallah, a 2-year-old colt purchased for $2,100,000 who won on debut on August 15 and is considered one of the most intriguing prospects from the champion's first crop.

"What I've seen in general with all of Flightline's offspring is that whatever they do at shorter distances, they'll do even better when they go long," John Sadler told The BloodHorse before the debut. "We have several and they all have great airways, like their sire; A-plus throats and an engine," he added. The Del Mar Futurity (G1) on September 6, he assured, "is not ruled out" for Inshallah.

The future is exciting, but this week the trainer's focus is squarely on the veteran. Full Serrano is now 7 years old, has overcome injuries, navigated setbacks, and hasn't raced in several months. But John Sadler knows exactly what he has in his hands. He gave him time when needed, did not hesitate to pull him from the San Diego when the foot issue flared up, and then systematically built up his preparation work by work. First he needed four. He got them. Then he needed a convincing response. That arrived as well. And finally, he had to decide whether Full Serrano was ready to challenge one of the biggest races on the circuit again.

On that, there never seemed to be much doubt. "Full Serrano is confirmed." Two years after finishing just half a length short, the Argentine star returns to the Pacific Classic. And John Sadler is convinced he arrives ready to settle that old score.