The St. Louis Cardinals and Cincinnati Reds meet again at Great American Ball Park on Tuesday, August 18, 2026, with both teams looking to gain valuable ground in the National League playoff race. The Cardinals enter the matchup at 63-61, while the Reds sit at 59-64.
Cardinals vs Reds This matchup comes immediately after a dramatic doubleheader on Monday. The teams split the two games, with St. Louis taking the opener 1-0 before Cincinnati rallied for a 6-5 victory in the nightcap. The second game was decided in the 10th inning when Elly De La Cruz delivered an RBI double for his first career walk-off hit.
With another game coming so quickly, momentum, bullpen usage and offensive consistency could all play important roles.
Cardinals Enter With Momentum
Cardinals vs Reds St. Louis has been playing some impressive baseball recently. Before arriving in Cincinnati, the Cardinals defeated the Chicago Cubs 11-4 on Sunday, securing their fourth consecutive series win. Alec Burleson and Jordan Walker were particularly impressive, each recording three hits, a home run and four RBIs.
That offensive performance demonstrated the Cardinals’ ability to produce runs from multiple parts of the lineup. Walker also continued his excellent stretch against Cincinnati, finishing Monday’s doubleheader with five hits in nine at-bats.
For St. Louis, the key will be carrying that offensive confidence into Tuesday’s game. Great American Ball Park is traditionally a friendly environment for hitters, meaning even a small offensive advantage can quickly become significant.
Cincinnati Has Plenty of Firepower
Cardinals vs Reds The Reds have their own reasons for optimism.
Cincinnati has played well in a number of series since the All-Star break, winning six of eight series before the recent stretch against Miami. The Reds also took two of three from the Chicago White Sox last week, with Tyler Stephenson hitting a crucial three-run homer and Eugenio Suarez contributing four RBIs.
Elly De La Cruz will naturally be one of the biggest players to watch. After struggling at the plate recently, he came through when Cincinnati needed him most on Monday. He went 2-for-4 in the nightcap and produced the game-winning hit in extra innings.
That walk-off could provide Cincinnati with an emotional boost, particularly because the Reds are playing at home.
The Pitching Question
Cardinals vs Reds Pitching could ultimately determine this matchup.
Cincinnati’s pitching staff has experienced some instability recently, and the team made a roster move Monday by designating Ron Marinaccio for assignment and selecting veteran left-hander Kent Emanuel. The move came amid bullpen concerns.
The Reds are also dealing with the significant absence of Hunter Greene. Greene underwent another procedure on his elbow and is expected to miss the entire 2027 season, adding another challenge to Cincinnati’s pitching depth.
For St. Louis, the challenge is making Cincinnati pay if the Reds’ pitching staff gives the Cardinals opportunities.
Because Monday featured two games, bullpen management is especially important. Relief pitchers who worked multiple innings could be less effective Tuesday, potentially creating opportunities for both offenses late in the game.
Why Great American Ball Park Matters
The venue is another major factor.
Cardinals vs Reds Great American Ball Park can turn routine fly balls into home runs, and that makes this matchup difficult to predict purely from pitching numbers. A team can control a game for several innings before one swing completely changes the score.
For Cincinnati, playing at home should give the Reds an advantage. The crowd will also be energized following De La Cruz’s walk-off heroics.
However, St. Louis has already shown that it can score heavily on the road. The Cardinals’ 11-run performance against Chicago demonstrates the ceiling of their offense, while their five runs in Monday’s nightcap showed that they can continue producing even after playing an earlier game.
Key Players to Watch
Jordan Walker — Cardinals
Walker is arguably the hottest offensive player entering this matchup. He collected five hits across Monday’s doubleheader and had an outstanding series against the Cubs immediately beforehand.
If he continues making consistent contact, Cincinnati’s pitchers could have a difficult night.
Alec Burleson — Cardinals
Burleson is another important offensive weapon. His three-hit, four-RBI performance against Chicago showed how much damage he can create when he gets into a rhythm.
Elly De La Cruz — Reds
De La Cruz enters the game with renewed confidence after his first career walk-off hit. He had been struggling before Monday, but a clutch extra-base hit in the 10th inning could be exactly what he needed to get his bat going again.
Tyler Stephenson — Reds
Stephenson remains another important part of Cincinnati’s lineup. His power was on display earlier in the month when he hit a three-run homer against Chicago.
Cardinals vs. Reds Prediction
This is a difficult game to call because both teams have legitimate strengths. Cincinnati has the home-field advantage and comes off a dramatic walk-off victory. St. Louis, however, has been producing consistently at the plate and enters the matchup with a stronger overall record.
Cardinals vs Reds The Cardinals are 63-61 compared with Cincinnati’s 59-64 record, giving St. Louis a modest edge based on season-long performance.
The biggest question is whether Cincinnati can keep St. Louis’ hitters under control. If the Reds’ bullpen is forced into another heavy workload, the Cardinals could have the advantage in the later innings.
Prediction: St. Louis Cardinals 6, Cincinnati Reds 5
Cardinals vs Reds I expect another competitive game, with the Cardinals potentially getting enough offense to overcome Cincinnati’s home-field advantage. The matchup could remain close into the late innings, and a big hit from Walker, Burleson or another St. Louis hitter could make the difference.
The safest expectation is a high-energy, competitive contest rather than a one-sided game. Both teams are still fighting for their postseason hopes, and with the NL playoff race remaining crowded, every win becomes increasingly important.
Final Verdict
The Reds have momentum, home-field advantage and the confidence that comes from De La Cruz’s walk-off heroics. But the Cardinals have been more consistent overall and arrive with an offense that has shown excellent recent form.
Our pick: Cardinals to win 6-5.
Cardinals vs Reds This prediction is based on current form and available matchup information; baseball remains highly unpredictable, particularly at a hitter-friendly venue like Great American Ball Park.