Saturday is Pennsylvania Derby day at Parx outside Philadelphia, and the late Pick 5 begins with the Parx Dirt Mile Stakes at 4:04 p.m. ET and ends with Race 14. Before you make any picks, you NEED to know how Saratoga Springs-based racing insider and Beyer Speed Figure maker Bob Weir has handicapped the sequence.

A member of the Beyer Speed Figure-making team, Weir is a two-time qualifier for the prestigious National Horseplayers Championship in Las Vegas. He has produced multiple five-figure days at the track over the years, including a $60,000 Pick 6 at Del Mar in 2014.

Last year he was red-hot in the Triple Crown prep races, hitting the superfecta in the Blue Grass Stakes for $1,678 and exactas in the Fountain of Youth Stakes and Tampa Bay Derby. He also hit the 19-1 winner of the Man o' War Stakes, the trifecta in the Pegasus World Cup, the superfecta in the Met Mile and multiple Pick 4s.

In April of this year, he hit a Pick 4 at Gulfstream Park for $641, the exacta in the Florida Derby, a Pick 5 at Keeneland and the exacta in the Lexington Stakes. He smashed the trifecta in the Belmont Stakes for $532.96, and later in June he crushed the Pick 4 at Belmont for $555. Those are just some of his scores this year.

For Saturday, Weir has handicapped the late Pick 5 at Parx, made his picks and constructed his tickets.

We can tell you that Weir is high on Gunite, the 2-1 favorite in the Parx Dirt Mile, the opening leg of the Pick 5. "He appears to have continued to move forward as a 4-year-old, and this spot looks well within his reach," Weir told SportsLine. Gunite is Weir's top pick in the Parx Dirt Mile and a lone A horse on his Pick 5 tickets.

In addition, Weir is high on a double-digit longshot on Saturday. Weir says this longshot "turns back to a better distance" and could spice up the Pick 5. Weir is including this longshot on his tickets, and so should you. You NEED to see Weir's analysis before making any Pick 5 selections.

So which double-digit longshot can win? And how has Weir constructed his Pick 5 tickets? ... Join SportsLine now to get Pick 5 selections at Parx for Saturday, all from the racing insider who has produced multiple five-figure days at the track!