Katherine Legge makes her return to "The Greatest Spectacle in Racing" when she competes in the 2023 Indianapolis 500 on Sunday at Indianapolis Motor Speedway. Legge became the 10th woman to start in the Indy 500 in 2012, when she finished 22nd. The 42-year-old Brit was 26th the following year, but has not participated in the IndyCar Series since. Legge is hoping to join Janet Guthrie and Danica Patrick as the only female drivers to record a top-10 finish in the Indy 500, a feat Patrick accomplished in six of her eight appearances. Legge is a massive longshot at +30000, while Pato O'Ward is the +500 favorite in the 2023 Indianapolis 500 odds from Caesars Sportsbook.

Alex Palou is +575, Scott Dixon is +700 and Alexander Rossi is +900, while Rinus VeeKay rounds out the top five 2023 Indianapolis 500 contenders at +1000. The green flag drops at 12:45 p.m. ET. Before making any 2023 Indy 500 picks, you need to see what SportsLine's Micah Roberts has to say.

A former Vegas bookmaker, Roberts was the first to offer expanded auto racing betting and now hands out winners to his followers on SportsLine.

As a rookie in 2016, Rossi shocked the world by winning the Indy 500 as a +8000 long shot. Roberts, the nation's premier auto racing betting expert, was all over Rossi.

The following year, sportsbooks listed Takuma Sato as a +2500 long shot, but Roberts liked his speed during practice runs and listed him in the top 10 of his projected leaderboard. The result: Sato stunned the IndyCar world with his first win since 2013, and anybody who backed him saw a massive return.

Roberts also had 2018 winner Will Power, who was listed at +1000, in his top 10 and correctly predicted Simon Pagenaud to win the Indianapolis 500 a year later. 

Now, Roberts has studied the 2023 Indianapolis 500 starting grid and locked in his IndyCar picks. Head to SportsLine to see his complete projected 2023 Indy 500 leaderboard.

2023 Indianapolis 500 expert picks

One shocker: Roberts is fading Pato O'Ward, even though he is the 2023 Indianapolis 500 favorite at +500. In fact, Roberts says O'Ward, who was the 2020 Indy 500 Rookie of the Year after finishing sixth and was runner-up in the race last year, barely even cracks the top 10 on Sunday.

"I didn't see the speed from him like I did with (Alex) Palau in practices," Roberts told SportsLine. "Top-10 speed, yes, but not the fastest that's worthy of being the favorite." You can see who else to fade here.

Another curveball: Roberts is high on Josef Newgarden, even though he is a long shot at +1400 in the 2023 Indy 500 odds. The 32-year-old Tennesseean has been a force in the IndyCar Series since 2016, finishing in the top five every year and winning the title on two occasions. Newgarden remains in search of his first Indy 500, victory but recorded top-10 finishes five times from 2015 to 2020, with his best result being third place in 2016.

"Newgarden had top-10 speed in a few Indy 500 practices, but I bet him not only because of the Penske pedigree, but because he won at Texas Motor Speedway in the second race of the season," Roberts told SportsLine. You can see who else to back here.

How to make 2023 Indianapolis 500 predictions

Roberts also has identified a longshot driver with a strong chance of taking the checkered flag. Vegas is lukewarm on this driver, so anyone who backs him could cash in huge. You can only see who it is at SportsLine.

So who wins the 2023 Indianapolis 500, and which long shot should you be all over? Visit SportsLine now to see the full projected leaderboard from the nation's premier auto racing handicapper, and find out.

2023 Indianapolis 500 odds, field

See full 2023 Indy 500 picks, predictions, and best bets here.
Pato O'Ward +500
Alex Palou +575
Scott Dixon +700
Alexander Rossi +900
Rinus VeeKay +1000
Marcus Ericsson +1100
Takuma Sato +1100
Felix Rosenqvist +1200
Josef Newgarden +1400
Santino Ferrucci +1500
Scott McLaughlin +1500
Will Power +1600
Tony Kanaan +1700
Colton Herta +2000
Kyle Kirkwood +2500
Conor Daly +3000
David Malukas +4000
Romain Grosjean +4500
Ed Carpenter +5000
Simon Pagenaud +5000
Graham Rahal +5000
Helio Castroneves +5500
Marco Andretti +6000
Ryan Hunter-Reay +6000
Benjamin Pedersen +7500
Christian Lundgaard +10000
Jack Harvey +20000
Agustin Canapino +25000
Callum Ilott +25000
Devlin DeFrancesco +30000
RC Enerson +30000
Katherine Legge +30000
Sting Ray Robb +30000