Against all odds and expectations, the St. Louis Cardinals are in the midst of an excellent first month-plus of their 2026 campaign. They’re winning games despite the overwhelming indication that it’d be a rebuilding year for the franchise, and tonight they take on the San Diego Padres. The latter has high expectations of another postseason appearance, and while it took a little time, they’re sitting near the top of their division.

Here’s a betting prediction and pick for Friday’s Cardinals vs. Padres matchup courtesy of MLB odds and lines on DraftKings Sportsbook.

Cardinals vs. Padres prediction, preview

St. Louis Cardinals

The Cardinals weren’t supposed to be anywhere near the .500 mark this season, but clearly, the players had other plans. It’s still early, yes, but they’re 22-15 and 8-2 over their last 10 contests amidst a hot stretch. Can this continue? Who knows. Regardless, they’re averaging 4.76 runs per game, 10th most in baseball. St. Louis’ OPS of .722 also ranks eighth on a .238/.324/.398 slash line, which could arguably be even better were it not for a stroke of poor-ish luck with a .278 BABIP. The Cardinals also have an ISO of .160 that sits eighth best and 45 home runs, tied for sixth most. An 0.44 BB/K ratio is also around the league average. The pitching, however, is something of a different story. A staff ERA of 4.45 is 20th while a 1.41 WHIP is also one of the MLB’s worst marks. Even less encouraging is a 17.8% K% that’s 30th of the 30 teams, adding up for an 8.2% K-BB%.

The good news is that RHP Michael McGreevy is on the mound tonight amidst an excellent start to his 2026. The 25-year-old has a 2.52 ERA and 0.92 WHIP across 39.1 IP in seven starts. He’s only struck out 24 hitters but is largely good at keeping exit velocity down while working with a staggering seven different pitches in his arsenal.

San Diego Padres

The Padres began the campaign in very poor fashion but have gone 21-11 since April 1, the fifth-best record in baseball over that span. They’re only 4-6 over their last 10, but a 22-15 overall record places them just a game shy of the Los Angeles Dodgers for the NL West lead. San Diego averages 4.41 runs per game but has an OPS of .684, the latter of which ranks 26th in the MLB. The Padres are slashing .231/.304/.381 and are 16th in ISO at .150 with just 36 home runs. A BB/K ratio of only 0.40 is atypical compared to the last couple iterations of this team which were generally great at drawing walks as well. Clearly, this is a roster that relies on its pitching to win games. An ERA of 4.15 is relatively pedestrian, but the Padres also have a 1.26 WHIP and 14.3% K-BB% while bordering on the top 10 in K% (23.3%). As it turns out as well, they’re underperforming relative to a 3.82 FIP that ranks 10th, so the arms can improve from here as well.

For the Padres, Griffin Canning gets the starting nod. The 29-year-old RHP has thrown only one game this season but went seven innings, allowing three hits, one earned run and three walks while striking out seven hitters. The walk rate has been an issue for him in recent campaigns, but he’s a perfectly serviceable starter.

Cardinals vs. Padres pick, best bet

DraftKings Sportsbook lists the Padres as -149 Moneyline favorites at home tonight. The Cardinals come in at +123 odds to win outright. The run total also sits at eight combined runs between these sides.

Best Bet: STL Cardinals first five innings (+114)

My reasoning for this pick is pretty simple, as it turns out. McGreevy has been excellent so far, ranking fifth in WHIP and 11th in ERA among qualified NL pitchers. While he’s outperformed his xERA and xBA numbers, I don’t feel like tonight is the night that we see some regression from the starter. The Padres’ offense has some ugly warts and brings the fifth-worst OBP (.304) into this matchup. This month alone, that mark falls to .278 with a .214 AVG as well. San Diego isn’t in form at the moment and the Cardinals’ offense is already more productive to begin with. I expect a couple of errant walks from Canning and a handful of runs for St. Louis as the visitors take the first five innings at plus odds.