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Trainer Ken McPeek will try to spring an upset for the second straight year when he sends out Mendelssohns March in the 2023 Belmont Derby on Saturday at Belmont Park. Last year, McPeek's Classic Causeway went gate-to-wire in shocking the field at 26-1 odds. This year, McPeek's Mendelssohns March is a 30-1 longshot in the 2023 Belmont Derby odds. He has two wins and one third in five career starts. The Foxes, an Irish-bred, is the 7-2 favorite in the 2023 Belmont Derby field. Three U.S.-based 2023 Belmont Derby horses are right behind: Far Bridge (4-1), Webslinger (9-2) and Kalik (5-1).

Post time for the $750,000 Belmont Derby 2023 is 5:49 p.m. ET. With several accomplished horses set to enter the starting gate on Saturday, you'll want to see what racing insider and Beyer Speed Figure maker Bob Weir has to say before making any 2023 Belmont Derby picks.

A member of the Beyer Speed Figure-making team who is based in Saratoga Springs, N.Y., 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 last week he crushed the Pick 4 at Belmont for $555. Those are just some of his scores this year.

Now, he has handicapped the 2023 Belmont Derby lineup, made his picks and constructed his bets. You can head to SportsLine now to see them.

Top Belmont Derby predictions

One surprise: Weir's top pick is not The Foxes, even though he is the 7-2 favorite. A son of Churchill, The Foxes has lost two of his last three starts and is coming off a fifth-place finish in the English Derby.

Weir does not like that The Foxes will make his first start outside of Great Britain. "The trainer was reportedly concerned about the current heat wave on the East Coast, so it's worth looking if he's washed out prior to the race," Weir told SportsLine. You can see all of Weir's 2023 Belmont Derby bets here.

How to make 2023 Belmont Derby picks

Instead, Weir's top pick is a longshot who "appears to have a lot of talent." Weir is only sharing his analysis and which horses to back at SportsLine.

So who wins the Belmont Derby 2023 and what longshot is a must-back? Check out the latest 2023 Belmont Derby odds below, then visit SportsLine to see Weir's picks for the Belmont Derby, and find out.

2023 Belmont Derby odds, lineup, horses

Prg #HorseOdds
1Mendelssohns March30-1
2Boppy O12-1
3Cyber Ninja30-1
4Webslinger9-2
5Far Bridge4-1
6Silver Knott6-1
7Wizard of Westwood15-1
8Kalik5-1
9Mondego20-1
10Redistricting8-1
11The Foxes7-2