As the Kentucky Derby and Preakness winner, Justify is the best horse in the Belmont, New York field. Whether the chestnut colt is the best tomorrow remains to be seen.
"I think he'll run big," Smith said.
Belmont Park is the site of one of the jockey's saddest days in racing.
In the 1993 Belmont, Smith was aboard Preakness winner Prairie Bayou. The gelding was running 10th of 13 horses on the back stretch when his left front leg snapped, tossing Smith on to the wet dirt. Smith wasn't hurt, but his horse ran on and sustained a compound fracture. Prairie Bayou was put down.
"I often think of him," Smith said. "I miss him a lot."
Smith began riding in New York in 1989. He left for California in 2001 before briefly returning to New York and then settling permanently in California in 2007. He returned to win the Belmont in 2010 with Drossel-meyer and again in 2013 with 13-1 shot Palace Malice.
Now 52, Smith is enjoying a career revival at an age when many riders have hung it up or no longer get called to ride the top horses. He's the all-time leader in Breeders' Cup wins among jockeys with 26.
That success in lucrative stakes races helped garner him the nickname "Big Money Mike."
His mounts have earned more than US$300 million in his career.
In recent years, he was the regular rider for superstar mare Zenyatta, Royal Delta, Songbird, Shared Belief and Game On Dude, among others. In the 1990s, he made a name riding Lure and Holy Bull.
Last year, Smith won 15 grade one races, the most since he won 20 in 1994. Of those, nine were with horses trained by Bob Baffert in a partnership that really took hold two years ago when Smith rode Arrogate to victories in the Travers Stake and Breeders' Cup Classic.
This year's Kentucky Derby and Preakness were Smith and Baffert's first two wins together in Triple Crown races.
"A lot of these riders, they get nervous. There's a lot of pressure on them, but Mike's been there so many times," Baffert said.
"The thing about Mike, he knows that I'm not worried about him so there's not that extra pressure. He knows he's not going to get fired."
Smith has curtailed his work schedule to focus on riding the best horses in the biggest races.
Gone are the days when he would hit the back stretch at the crack of dawn to hustle business in the afternoons by exercising horses in the mornings.
"If I can make just as much money with riding a whole lot less horses, why not?" he said, smiling. "I've been blessed to have done really well. Now I'm just enjoying it."
He adheres to a daunting physical regimen that involves riding his bicycle downhill to a gym, where he exercises for an hour six days a week doing strength training and intense cardio, and then bikes back uphill to go home. He typically rides at 53.5kg, which includes his saddle, boots and padded safety vest.
"I've got it down to what I think is a science with my fitness level, so if I hadn't ridden in four, five days I could jump on one and it doesn't take nothing out," he said.
Smith was inspired to focus on fitness several years ago by his friend and fellow Hall of Famer Laffit Pincay Jr, who competed into his 50s before a riding accident forced him to retire. Pincay said Smith once asked him for advice.
"At the time, he had a reputation that he was drinking a lot," Pincay said. "I said, 'Stop drinking and take care of yourself'. From then on, he started winning all the big races."
Despite riding 550kg animals at 60km/h, Smith has been relatively injury free throughout his career, although he had a frightening spill in 1998 at Saratoga, where he broke his back and spent months in a body cast.
In 2011, while riding at Del Mar for the summer, Smith was arrested on suspicion of DUI (drunk driving).
"I just always believed that if things ain't going right, it's usually for a reason, figure it out and get back on track," he said. "Every time I've gotten back on track, boom, it takes off again."
Smith has been fortunate away from the track, too.
He recently became engaged to a woman he says didn't know who he was when they met. The couple plans to wed in January.
Smith figures winning the Triple Crown wouldn't boost his business that much since he's already doing well. But the personal satisfaction would be undeniable.
"Oh man, the most content, humble, gracious feeling you could possibly think," he said, smiling. "I could die and I would be the happiest dying person you ever met."
- AP