Payback 2015 features a highly intriguing main event, as Randy Orton and all three former members of The Shield compete for the WWE World Heavyweight Championship. While each wrestler technically has a 25 percent chance of winning, the betting odds indicate that the title is unlikely to change hands.

Seth Rollins is a 1/7 favorite to retain the WWE World Heavyweight Championship at Sunday night’s PPV in Baltimore. The champ won the belt at WrestleMania 31 when he cashed in his Money in the Bank briefcase, turning the title match between Brock Lesnar and Roman Reigns into a triple threat match. Rollins has had one title defense, beating Orton at Extreme Rules in a steel cage match.

Orton held the title from October 2013 to WrestleMania 30 in April of last year, and he doesn’t appear likely to win back the championship. Neither Reigns nor Dean Ambrose have ever been the WWE World Heavyweight Champion, and the 2015 Royal Rumble winner has been given the second-best odds of anyone in the match. Ambrose has the worst odds at 12/1.

With three belts being placed on the line at Payback, the United States Championship is considered to be the one least likely to change hands. After losing to Rusev at WWE Fast Lane, Cena has defeated him at two consecutive PPVs, and he’s expected to get a third straight win. A win for Cena should end this four-month long feud.

Dolph Ziggler has been made the smallest underdog on the card. Sheamus is favored in the rematch between him and Ziggler from Extreme Rules, but a win for the “Show Off” wouldn’t exactly be shocking.

The most unpredictable match is King Barrett vs. Neville. The two wrestlers have already faced off at Extreme Rules and King of the Ring, trading victories. Barrett and Neville have the same odds in their match on Sunday.

Below are the betting odds for the matches at Payback 2015, courtesy of Paddy Power. There are no odds listed for the kickoff match between Axel & Mandow and The Ascension, or the Divas tag team match between The Bella Twins and Naomi & Tamina.

Fatal 4-Way WWE World Heavyweight Championship Match

Seth Rollins 1/7

Roman Reigns 7/1

Randy Orton 10/1

Dean Ambrose 12/1

United States Championship “I Quit” Match

John Cena 1/9

Rusev 5/1

Dolph Ziggler vs. Sheamus

Sheamus 1/2

Ziggler 6/4

King Barrett vs. Neville

Barrett 5/6

Neville 5/6

Bray Wyatt vs. Ryback

Wyatt 8/15

Ryback 11/8

 2-Out-Of-3 Falls Tag Team Championship Match

The New Day 3/10

Tyson Kidd & Cesaro 11/5