St. Louis Cardinals vs Miami Marlins Prediction, Odds and Picks for Today, 04/22/26

This is one of those lines that looks wrong at first glance, and that’s exactly why it deserves attention. The Miami Marlins sit below .500, yet they’re favored against a 14-9 St. Louis Cardinals team. On the surface, that feels backwards, especially with Miami sending Janson Junk (0-2) to the mound against Kyle Leahy, who already has 2 wins, this season. But this is where digging deeper separates perception from reality.

Junk’s surface stats don’t tell the full story. His 4.50 ERA is paired with a much stronger 3.54 xERA and a solid 3.91 FIP, indicating his underlying performance has been significantly better than the results suggest. This is reinforced by a .303 BABIP and a low 63% strand rate that point toward poor sequencing and some bad luck rather than poor pitching. In other words, he’s due for positive regression. This is a spot for him to enjoy that. Leahy, on the other hand, is trending the opposite way. His inflated 5.67 xERA and frightening 5.92 FIP suggest his results are skating on thin ice. That’s a profile that often leads to blow-up outings. This is a mismatch hiding behind misleading records and surface-level numbers. The market is signaling a correction spot, and with Miami holding the pitching edge beneath the surface, backing the Marlins at margin is the sharp side. This is play of the day material.

Cardinals vs Marlins prediction: Miami Marlins -1.5 (+155) (RL) available at time of publishing. Playable to the number.