Royals vs Cardinals Predictions, Odds & Same-Game Parlay (May 29)

By Chris Amberley in MLB Baseball
Published:

- St. Louis is a -180 moneyline favorite in the Royals vs Cardinals odds on Monday afternoon
- KC has dropped 11 of 15 games and boast the second lowest winning percentage in MLB
- Check out the latest Royals vs Cardinals odds, plus predictions and same-game parlay picks
Memorial Day means afternoon baseball and there’s no shortage of contests for us to sweat. The slate features seven matinees in total, including the battle of Missouri in St. Louis. That’s where the Cardinals (24-31, 11-15 home) will host the Royals (16-38, 8-17 away) and online sportsbooks expect the home side to emerge victorious.
They’ve opened up St. Louis as the heavy chalk in Monday’s MLB odds, as the Cards look to continue their improved play. St. Louis started off the season losing 24 of their first 34 games, but have since turned things around – as we’ll discuss.
Royals vs Cardinals Odds
Team | Moneyline | Runline | Total |
---|---|---|---|
KC Royals | +155 | +1.5 (-120) | O 10 (-110) |
St. Louis Cardinals | -180 | -1.5 (+100) | U 10 (-110) |
The Cardinals are currently -180 moneyline favorites, in a contest with a total of 10. First pitch is scheduled for 2:15 pm ET at Busch Stadium in St. Louis, Missouri, with sunshine and mid-eighties temperatures on deck.

SPORTSBOOK
Odds as of May 28 at Bet365. Check out SBD’s Bet365 review or another one of North America’s top sports betting sites.
Kansas City vs St. Louis Probable Pitchers
St. Louis is set up for success on Monday at the dish, as KC is being forced to use an opener. Josh Staumont will occupy that role, but considering he hasn’t pitched more than 1.0 innings since 2021, the Cards can expect to see plenty of the Royals sub-par bullpen.
KC relievers boast the third highest ERA in the Majors, and a bottom-12 strand rate. Only the A’s bullpen allows more walks per 9 innings, while no set of relievers have yielded a higher batting average on balls in play than the Royals.
Paul Goldschmidt, Nolan Arenado and the rest of the St. Louis regulars in the MLB starting lineups should be licking their chops, and a big offensive performance from them is expected.
Staumont vs Wainwright Stats
0-0 | Record | 2-0 |
4.76 | ERA | 6.33 |
1.35 | WHIP | 1.59 |
.213 | OBA | .308 |
2.1 | SO/W Ratio | 1.7 |
The Cardinals will counter with veteran Adam Wainwright, who’s looked every bit of his 41 years this season. The right-hander has coughed up at least four runs in all four of his starts, failing to make it past the 5th inning. Last time out, he surrendered five runs to the Reds, which followed a five-run outing against the Dodgers.
Adam Wainwright’s Statcast percentiles entering today pic.twitter.com/5dxDxAhD5f
— Kareem (@KareemSSN) May 23, 2023
If you’re looking for a reason to be optimistic on Wainwright, he does have an excellent track record versus the light-hitting Royals. Their current regulars are batting just .111 off him over 45 at-bats, with a dismal .278 OPS.
Royals vs Cardinals Predictions
Kansas City hitters struggling is nothing new however, as they’re one of the lowest scoring teams in MLB. They rank 26th in runs per game, and sit bottom-five in batting average, slugging and OPS. Their recent form doesn’t inspire much confidence, and neither does their performance versus right-handed pitching.
KC is slashing .212/.281/.349 over the past two weeks, averaging 3.6 runs per outing. Their batting average is .34 points lower versus righties compared to lefties, while their slugging percentage and OPS dip .48 and .98 points respectively.
St. Louis meanwhile, enters play winners of 14 of its past 20 games. Goldschmidt and Arenado have combined for 13 home runs this month, while sophomore Nolan Gorman has also been tearing the cover off the ball in May.
Nolan Gorman is one of the best players in the MLB
15-Game Hit Streak and counting🔥 #STLCards pic.twitter.com/iuuhp15a5d
— Gateway Grinders (@gatewaygrinders) May 25, 2023
The 23-year-old boasts a .658 slugging percentage this month, and a 1.058 OPS. He’s gone deep seven times in May to go along with 18 RBI, and is slashing .364/.444/.727 in 77 at-bats at home this season.
Gorman and the rest of the Cardinals bats have been seeing the ball very clearly over the past two weeks, smacking 24 home runs while averaging over six runs per game.
Royals vs Cardinals Same-Game Parlay
Team | Moneyline |
---|---|
St. Louis Cardinals -1.5 | +100 |
St. Louis Cardinals Over 5.5 Runs | -105 |
Same-Game Parlay Odds | +165 |
Given their favorable matchup versus the KC relievers, I like targeting them to cover the -1.5 run line and to exceed 5.5 runs. Those two wagers in a same-game parlay pay out +165 odds, and have happened quite frequently against this KC team. Of the Royals 38 losses, 33 have been by two or more runs, while the opposing team has scored at least six runs in 18 of those defeats.
Pick: Same-Game Parlay (+165)

Sports Writer
As SBD's resident Swiss Army Knife, Chris covers virtually every sport including NFL, PGA, NBA, MLB, NCAAB, NCAAF and the Olympics. A true grinder, he'd rather pick off small edges in the player props market than swing for the fences with a 5-leg parlay.