Belmont Park's late Pick 4 on Sunday begins with Race 7 at 4:32 p.m. ET and ends with Race 10. Before you make any picks, you NEED to know how racing insider and accomplished horseplayer Bob Weir has handicapped the four-race sequence.

Based in Saratoga Springs, N.Y., Weir has been handicapping and following horse racing since reading Andy Beyer's landmark handicapping book "Picking Winners" in the late 1980s. Weir is highly invested in the Beyer Speed Figure, a number assigned to every race run by a horse that measures how fast the horse ran. He uses the figure as the backbone of his handicapping. In fact, thanks to his proficiency with speed figures and top-tier handicapping, he landed one of just eight spots on Beyer's figure-making team in 2017, a position he holds to this day.

Weir's methodology has produced multiple five-figure days. In 2014, he hit a $60,000 Pick 6 at Del Mar. The following year, he nailed a $31,000 Pick 6 at Gulfstream Park. In 2016 and 2017, Weir qualified for the prestigious National Horseplayers Championship in Las Vegas. 

And this year, his first for SportsLine, Weir has been on fire. In January he crushed the Pegasus World Cup, giving out an $8 exacta and a $1 trifecta, winning $757.60. He nailed the late Pick 4 at Gulfstream Park on both April 9 and April 10, hitting for $827.65 and $394.65. On June 13 Weir hit a $2 superfecta in the Ogden Phipps Stakes that paid a whopping $1,039. And he hit the late Pick 4 at Belmont Park on June 18, 19, 25 and July 2 with the June 25 score returning a whopping $2,159.50. Those are just some of his hits this year.

Anyone who has followed Weir this year is WAY UP.

Now, Weir has handicapped the late Pick 4 at Belmont Park for Sunday, made his picks and constructed his tickets.

We can tell you that Weir is high on Tale of the Union, the 2-1 favorite in Race 8, the second leg of the Pick 4. "He has continued to train well since that race and makes his third start back after a long layoff," Weir tells SportsLine. Tale of the Union is Weir's top pick in Race 8 and a single A horse on Weir's Pick 4 tickets.

In addition, Weir is high on a double-digit longshot on Sunday! Weir says this horse tired in his last race "but should be tighter on Sunday" and could light up the toteboard and spice up the Pick 4. Weir is including this longshot on his tickets, and so should you. You NEED to see Weir's analysis before making any Pick 4 selections.

So which double-digit longshot can win? And how has Weir constructed his Pick 4 tickets? ... Join SportsLine now to get late Pick 4 selections at Belmont Park for Sunday, all from the racing insider who is on fire this year!