He was the first horse since 1882 to win the Kentucky Derby without having raced as a two-year-old.
"He ran a great race, especially considering he had a whole lot of things going against him", Brown said.
Smith told reporters, "I just want to thank my Lord and Savior Jesus Christ for blessing us on this afternoon, and blessing us with this fantastic horse".
All that remained was to prove that he had the toughness and resolve to conquer the longest, most grueling leg of the Triple Crown.
The B.C-based breeder of Triple Crown victor Justify says he and his family are honoured to be a part of history. Turning for home with a date with immortality awaiting him in the winner's circle, Justify bounded home with Gronkowski (Lonhro ) giving belated chase to the wire.
Baffert joined Fitzsimmons as the only trainers to oversee two Triple Crown winners.
Gunther says while he and others behind the horse could barely contain their nerves as the Belmont began, the horse - true to character - stayed serene. Free Drop Billy never fired after trailing all but Gronkowski for most of the race and crossed seventh, while Restoring Hope, Blended Citizen, and Noble Indy appeared to only cross the finish line shortly before the next race went off.
The last time there was a Triple Crown coronation, President Barack Obama was still in office, Princess Charlotte was a month old and the long-suffering Cubs had not won a World Series since 1908.
Justify opened his bid with a 2 ½-length victory on a sloppy track in the 1 1/4-mile Kentucky Derby on May 5.
Wallace went into yesterday's race in a pragmatic mood, knowing wishing doesn't tend to make racehorses run any faster. He burnished his reputation by defeating nine rivals, the most faced by any Triple Crown champion.
WinStar's Elliot Walden declined to discuss the deal after Justify's win.
"He's sent from Heaven", Smith said. Often it's the final quarter-mile that does in a contender.
"I'd like to see John win the race!"
Last year, Baffert won four races with Mor Spirit (Metropolitan Handicap), Abel Tasman (Acorn), American Anthem (Woody Stephens) and West Coast (Easy Goer).
Justify made history on Saturday by winning the Triple Crown, which reportedly increased the value of his breeding rights, according to ESPN.
Baffert had fretted after Justify drew the No. 1 post, a spot he detests for his horses.
Gronkowski, named for and partly owned by New England Patriots tight end Rob Gronkowski, returned $13.80 and $7.
Justify returned $3.60 to win, $3.50 to place, and $2.80 to show. He is the second undefeated Triple Crown victor, joining Seattle Slew in 1977.