Sunday is opening day at Santa Anita Park in Arcadia, Calif., and the late Pick 4 on a stakes-laden card begins with the La Brea Stakes at 5:44 p.m. ET and ends with the American Oaks. Before you make any picks, you NEED to know how racing insider and accomplished horseplayer Bob Weir has handicapped the four-race sequence.

A Saratoga Springs-based racing insider and Beyer Speed Figure maker, Weir has studied the sequence and constructed his wagers in his analysis below. A two-time qualifier for the prestigious National Horseplayers Championship in Las Vegas, Weir has produced multiple five-figure days at the track over the years, including a $60,000 Pick 6 at Del Mar in 2014. This year, he has been on fire. He hit the exacta in the Sam F. Davis Stakes, Tampa Bay Derby and Peter Pan Stakes, the trifecta in the Risen Star Stakes, Blue Grass Stakes and Pennsylvania Derby and the superfecta in the Belmont Stakes, with the Tampa Bay score returning $1,414. Those are just some of his scores in 2021.

Now, he has handicapped the late Pick 4 at Santa Anita for Sunday, made his picks and constructed his tickets.

We can tell you that Weir is high on Private Mission, the 8-5 favorite in the La Brea Stakes, the opening leg of the PIck 4. "She's the proven commodity in a field with a lot of question marks," Weir tells SportsLine. Private Mission is Weir's top pick in the La Brea Stakes and an A horse on his Pick 4 tickets.

In addition, Weir's top pick in one of the races is a long shot! Weir says this horse "should have every chance at a fair price" and could spice up the Pick 4. Weir is including this long shot on his tickets, and so should you. You NEED to see Weir's analysis before making any Pick 4 selections.

So which long shot can win? And how has Weir constructed his Pick 4 tickets? ... Join SportsLine now to get late Pick 4 selections at Santa Anita for Sunday, all from the racing insider who has been on fire!