MLB Predictions

St. Louis Cardinals vs Seattle Mariners Prediction & Betting Tips for 4/25/2026

Want our best St. Louis Cardinals vs Seattle Mariners prediction for on 4/25/26? Get our MLB betting tip as the Mariners travel to the Cardinals on 4/25/26 at Busch Stadium, in St. Louis. Knup Sports has your free pick!

The MLB Regular Season continues as the Seattle Mariners, currently holding a 12-15 record, travel to St. Louis to take on the Cardinals at Busch Stadium. The Mariners, under the guidance of manager Dan Wilson, are looking to extend their recent two-game winning streak. They face a Cardinals team that sits at 14-11 and aims to break their current two-game losing skid.

The Mariners have struggled on the road with a 2-8 record, despite showing some resilience in their last win against the Cardinals with a close 3-2 victory. Their hitting power, led by key contributors like Josh Naylor, who had a significant impact in recent games, will be crucial against a Cardinals team that has performed relatively well at home. The Cardinals, managed by Oliver Marmol, will aim to capitalize on their home advantage, supported by solid coaching from Brant Brown and Dusty Blake.

Both teams will need to navigate the mild weather conditions and make the most of their strategic plays. The Mariners have shown a balanced blend of pitching and batting in recent games, while the Cardinals rely on their ability to rebound quickly. With the game being aired on SEAM, fans can look forward to an engaging afternoon of baseball in St. Louis.

Cardinals vs Mariners At a Glance

  • Game Location: Busch Stadium in St. Louis, MO
  • Current Odds: Mariners are favored with a moneyline of -149, while the Cardinals stand at +125
  • Weather Conditions: Mild day with a light breeze and few clouds
  • Broadcast Channel: Game will be televised on SEAM
  • Seattle Mariners Record: 12-15, currently ranked 3rd in the AL West
  • St. Louis Cardinals Record: 14-11, holding the 4th spot in the NL Central

Cardinals Set to Test Mariners’ Pitching Depth in Upcoming Game

Seattle Mariners: Team Overview

The Seattle Mariners enter the upcoming game with a mixed performance this season. Their team batting average stands at .230, ranking 17th in the league. With an on-base percentage of .317, they hold the 13th spot, indicating a decent ability to get on base.

Seattle’s power has been evident, as they have hit 27 home runs, placing them 9th in the league. The team has also demonstrated speed on the bases, securing 19 stolen bases, which ranks 7th. Their ability to mix power and speed makes them a balanced offensive threat.

Seattle Mariners: Key Players

On the mound, Bryan Woo has been a standout performer for the Mariners this season. With a 2.25 ERA and 26 strikeouts, he has been a reliable pitcher for Seattle. His WHIP of 0.88 further highlights his effectiveness in limiting baserunners.

Offensively, the Mariners have relied on their depth, with several players contributing to their home run tally. Their ability to spread the offensive load makes them a challenging lineup for opposing pitchers. The Mariners’ combination of effective pitching and versatile hitting will be crucial in their matchup against the Cardinals.

Seattle Mariners: Pitching Concerns

While Bryan Woo has been solid, the Mariners’ pitching staff as a whole has struggled at times. With an earned run average of 4.70, they rank 26th in the league. This suggests potential vulnerabilities that the Cardinals might exploit.

Additionally, Seattle’s bullpen has been shaky, with three blown saves placing them 4th in the league. If the game is close, the Mariners will need to rely on their bullpen to maintain any leads they might have.

Seattle Mariners: Team Betting Trends

  • SU Last 3 Games: 2-1 (66.7%)
  • Runline Last 3: 2-1 (66.7%)
  • O/U Last 3: 1-2 (33.3%)

The Mariners have had some recent success against the runline, but they have struggled with totals, indicating variability in their game outcomes. Their record in close games and their ability to handle pressure situations will be tested against the Cardinals.

The Mariners Aim for Another Win in St. Louis

Team Overview

The Seattle Mariners are heading into their next game with a mixed record in the early stages of the 2026 season. With a batting average ranking of 21st and an on-base percentage ranking of 11th, their offensive output has been inconsistent. However, their pitching staff boasts a top-five ERA in the league, which has been crucial for their victories.

Seattle’s power hitters have managed to secure 26 home runs, placing them 10th in the league. The team has also been active on the base paths with 17 stolen bases, ranking them 9th. Despite a high strikeout rate of 246, which is 24th in the league, the Mariners are looking to leverage their pitching strength in upcoming games.

Key Players to Watch

Josh Naylor has been a key contributor for the Mariners, hitting a tiebreaking home run in their recent win against the Cardinals. Naylor’s ability to perform under pressure will be pivotal for Seattle. Cal Raleigh, despite a .192 batting average, leads the team with 5 home runs and 14 RBIs, showing his knack for producing runs.

Randy Arozarena is another player to watch with a .289 average and 10 RBIs. His consistent performance has been a bright spot for the Mariners’ lineup. Leo Rivas has struggled with a .141 average but remains a key defensive player at third base.

Pitching Matchup

Seattle will rely on Bryan Woo, who has been impressive this season with a 2.25 ERA and 26 strikeouts. Woo’s ability to keep runners off base with a 0.88 WHIP will be crucial against the Cardinals. Opposing Woo is Matthew Liberatore for the Cardinals, who holds a 3.67 ERA and has 16 strikeouts this season.

The Mariners’ bullpen, with only 4 blown saves, will aim to support Woo in securing another win. With a quality start rate that ranks 2nd in the league, Seattle’s pitching depth will be tested once again.

Betting Trends

  • Seattle is 2-8 in away games this season.
  • They have a 3-2 record in their last 5 games.
  • As an underdog, the Mariners are 1-2.
  • In 1-run games, they are 4-6.
  • Seattle’s runline record is 1-9 in away games.
  • They have hit the over in 2 of their last 8 away games.

Cardinals vs Mariners Prediction: Mariners -149

The Mariners have shown a strong head-to-head record against the Cardinals, winning their last meeting 3-2. With Bryan Woo on the mound and posting a solid 2.25 ERA, Seattle’s pitching advantage could prove significant. Their recent form and Woo’s reliability suggest Seattle as a favorable pick.

On the other side, the Cardinals are coming off a two-game losing streak and will rely on Matthew Liberatore, who has been decent but inconsistent with a 3.67 ERA. The Cardinals have struggled against the Mariners historically, which might continue. Given the Mariners’ recent victory and ongoing winning streak, they appear well-positioned.

Seattle’s road struggles, highlighted by a 2-8 record, are a concern but Woo’s performance could counterbalance this. The weather conditions with a light breeze blowing out may aid the Mariners’ hitters. This points to a narrow win for Seattle.

Despite the Cardinals’ better home record, Seattle’s recent form, strong pitching, and favorable historical performance give them the edge. A final score projection in line with these factors is Mariners 4 – Cardinals 3.

  • Cardinals vs Mariners Prediction: Mariners -149
  • Cardinals vs Mariners Score: Mariners 4 – Cardinals 3

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