Cubs vs. Cardinals Prediction & Best Bet (5/31/2026)
Our Cubs vs. Cardinals prediction for Sunday’s rubber match at Busch Stadium is the St. Louis Cardinals on the moneyline at -104, a Standard Play on the hotter home team in a game the market has priced as a true coin flip. The Cubs are countering with a just-recalled spot starter in Jordan Wicks, and at a near pick’em number we’d rather hold the Cardinals’ lineup — winners of seven of their last 10 — than pay up for Chicago’s bullpen-game gamble.
This series has been a split decision. St. Louis grabbed Friday’s opener 6-5 behind a Nelson Velázquez three-run homer; Chicago punched back 6-1 on Saturday as Pete Crow-Armstrong launched a 444-foot blast. Now it’s a finale under the Sunday-night lights, with two shaky left-handers on the mound and a total that can’t make up its mind. That uncertainty — two question-mark starters, a near-even line — is exactly where we go shopping.
Busch Stadium, St. Louis, MO
Matchup Overview
The story of the finale is bullpen-game roulette for the Cubs against a Cardinals offense that has quietly been the hotter group. Chicago sits 32-27, four games back of Milwaukee in the NL Central and a respectable second place, but the Cubs have stumbled to a 3-7 mark over their last 10 and are just 14-16 on the road. St. Louis, at 30-26 and 4.5 back, has gone the other way — 7-3 in its last 10 and 14-14 at home — despite dropping Saturday’s game.
The pitching is where this gets interesting, and not in a comforting way for either side. The Cubs turn to Jordan Wicks, a lefty they recalled from Triple-A Iowa on May 24 when Edward Cabrera landed on the injured list with a finger blister. Wicks opened the season on the IL himself with elbow inflammation, so his 2026 big-league line — 0-1 with a 16.62 ERA across just 4.1 innings — is far too small a sample to read much into.
The encouraging note: over his last three Triple-A starts (15 innings) he allowed a single run with 12 strikeouts. He’s a genuine wild card. We flagged the same NL Central volatility in our recent Brewers vs. Cubs pick, and Chicago’s rotation has only gotten thinner since.
- Game 1 (5/29): Cardinals 6, Cubs 5 — Nelson Velázquez’s three-run homer led the way, with Iván Herrera and Thomas Saggese adding solo shots
- Game 2 (5/30): Cubs 6, Cardinals 1 — Pete Crow-Armstrong’s 444-foot home run and Michael Busch’s two RBIs paced Chicago
- Game 3 (5/31): the rubber match at Busch Stadium, 7:20 PM ET on NBC and Peacock — the season series is tied 1-1
St. Louis counters with Matthew Liberatore, a 26-year-old lefty who has been more hittable than the Cardinals would like — 2-3 with a 4.76 ERA, a bloated 1.57 WHIP and 10 home runs allowed across 56.2 innings, with just three quality starts in 10 tries. He gives length on his good nights and gets squared up on his bad ones. You can see where both clubs sit as the division race tightens on the official NL Central standings.
Odds & Line Analysis
FanDuel has this game sitting right on the knife’s edge: the Cubs at -112 and the Cardinals at -104, about as close to a true pick’em as a moneyline gets. The run line lists Chicago at -1.5 (+146) and St. Louis at +1.5 (-176), with the total parked at 8.5 (Over -122, Under +100).
A pick’em line in a game where one side is throwing a recalled spot starter tells you the market is leaning on Chicago’s season-long offense to paper over the Wicks question. The forecast models agree — numberFire gives the Cubs a 57.8% win probability. We see it a little differently: the books are discounting how much uncertainty a fifth-starter bullpen game injects, and how well the Cardinals’ bats have swung lately.
If you want a refresher on reading a near-even number like this, our odds calculator breaks down what -104 actually implies about win probability.
Key Factors
Three things tilt this rubber match toward St. Louis, and none of them require believing the Cardinals are the better team over 162 games — only that they’re the better team for one night at home against a mystery starter.
St. Louis is 7-3 over its last 10 while Chicago has slumped to 3-7, and the Cardinals’ bats have shown real thump in this series — Velázquez, Herrera and Saggese all went deep in Friday’s win. At 14-14 inside Busch Stadium, this is a home club swinging it well and getting a hittable opponent on the mound. Recent form is only one input, but in a coin-flip game it’s a thumb on the scale.
Jordan Wicks is on the mound only because Edward Cabrera hit the injured list, and Wicks himself opened 2026 sidelined with elbow inflammation before this recall. His recent Triple-A form is encouraging, but a just-promoted lefty making a spot start typically means the Cubs need early length from a bullpen that has been leaned on hard. At a true pick’em price, that’s not a starter we want to back with our money.
Liberatore has surrendered 10 homers and carries a 1.57 WHIP with a .297 opponent average — hitters square him up — and Wicks brings his own command questions. That combination is why Over 8.5 is a reasonable secondary lean. The honest counterpoint: Busch Stadium plays pitcher-friendly, and Saturday’s 6-1 result landed well under the number, so this is a lean rather than a conviction play. Our over/under guide covers how to weigh a juiced total like this one.
The Pick
Take the Cardinals on the moneyline at -104 as a Standard Play. This isn’t a referendum on which team is better — the Cubs have the deeper lineup over a full season and deserve to be near-even on the road. It’s a bet on one night: St. Louis is home, its bats are hot, and Chicago is asking a just-recalled spot starter to navigate a Cardinals order that already hit three home runs in this series. At a coin-flip price, that’s a spot to side with the home team holding the matchup edge. For the broader framework behind situational plays like this, our sports betting guide is the place to start.
The risk is real and worth saying plainly: the models lean Chicago, and if Wicks channels his recent Triple-A form he can absolutely quiet the Cardinals for five. That’s why this is a Standard Play and not a Best Bet — keep it to a normal unit, and treat Over 8.5 as a secondary lean rather than doubling your exposure to the same game. Two unreliable starters can light up a scoreboard as easily as one can dominate, so size accordingly.
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Frequently Asked Questions
Quick answers to what bettors are asking about the Cubs–Cardinals rubber match — the start time, the betting line, who’s pitching, and where the value sits.
What time does Cubs vs. Cardinals start on Sunday and where can I watch it?
First pitch for the rubber match is set for 7:20 PM ET on Sunday, May 31, 2026 at Busch Stadium in St. Louis, with national coverage on NBC and Peacock. It’s the third and deciding game of a three-game series that is tied 1-1 after the Cardinals won Friday and the Cubs won Saturday.
Who is favored in the Cubs vs. Cardinals game on May 31?
Neither team, really — this is close to a true pick’em. FanDuel lists the Cubs at -112 and the Cardinals at -104, with the total set at 8.5. Our pick is the Cardinals on the moneyline at -104, with Over 8.5 as a secondary lean.
Who are the starting pitchers for the Cubs and Cardinals finale?
The Cubs send out left-hander Jordan Wicks, who was recalled from Triple-A on May 24 after Edward Cabrera went on the injured list; his big-league sample this year is tiny and uneven, though his recent minor-league form has been strong. The Cardinals counter with lefty Matthew Liberatore (2-3, 4.76 ERA), an inconsistent starter who has been homer-prone in 2026. Both arms carry real question marks.
Why bet the Cardinals if the models lean toward the Cubs?
Forecast models like numberFire give the Cubs about a 57.8% win probability, leaning on Chicago’s stronger season-long offense. We lean Cardinals because at a near pick’em price you’re getting the hotter team (7-3 in its last 10) at home against a just-recalled Cubs spot starter — a situational edge the even line is underpricing. It’s a Standard Play, not a lock, because the game is close to a coin flip.
