St. Louis Cardinals vs Washington Nationals Prediction and Picks, September 19, 2026

The Washington Nationals have been struggling, especially on the road, where they've lost 10 games in a row. Meanwhile, the St. Louis Cardinals have their home field advantage at Busch Stadium, where home runs are much less common. This makes it tougher for opposing teams to score big. Taking the Cardinals to win seems smart here. They've got the home support and are facing a Nationals team that has only won 4 out of their last 10 games. However, this matchup is rated close to a coin flip, so it could go either way. The Nationals might surprise us, but the Cardinals seem like the better pick today.

St. Louis Cardinals vs Washington Nationals: St. Louis Cardinals -1 Spread (+109)

The Washington Nationals have struggled on the road, losing 10 straight games, which makes it tough for them to compete at Busch Stadium. The St. Louis Cardinals have a knack for keeping balls in the yard, meaning home runs are less likely to change the game. With the Cardinals playing at home and the Nationals not in great form, it sets up nicely for St. Louis. Betting on the Cardinals to win by at least two runs feels like a solid choice. The odds are good, and our numbers show they have a real shot, especially with their recent home advantage. Just keep in mind that the Nationals have won 4 of their last 6 games, so they could surprise.

St. Louis Cardinals vs Washington Nationals: Under 4.5 Total Runs (+560)

For this game, we need the total runs scored by both teams to be under 4.5. The Cardinals' home park, Busch Stadium, is tough on home runs, with balls staying in the yard a lot more than in other places. This makes it harder for teams to rack up runs. The Nationals have struggled on the road, losing ten games in a row, which doesn't help their chances tonight. While they have won four of their last six games overall, the Cardinals are usually solid at home. It's a bit risky since both teams can hit well at times, but the park's effects are tough to ignore.

St. Louis Cardinals vs Washington Nationals: Andrew Alvarez Over 4.5 Pitcher - Strikeouts (+112)

The odds for Andrew Alvarez to get over 4.5 strikeouts are looking pretty good at +112. The Nationals have had some ups and downs lately, winning 4 of their last 6 games, but remember they've also lost 10 straight games on the road. Alvarez has a solid chance to rack up strikeouts, especially since the Cardinals' home field tends to keep balls in the yard, which means more chances for him to get batters swinging and missing. However, it's worth noting that the matchup is quite even, and the Nationals can be tricky at the plate. Alvarez will need to find his rhythm early against a team that's shown some recent success hitting. If he can settle in, this bet has a fair shot of hitting.

St. Louis Cardinals vs Washington Nationals: Michael McGreevy Under 17.5 Pitcher - Outs (-115)

Michael McGreevy has a solid chance of keeping the Nationals to a low score, especially at Busch Stadium where home runs are less common. The Cardinals' home park has shown that balls tend to stay in the yard, making it harder for opposing hitters to rack up runs. The Nationals have only won four of their last ten games and have struggled on the road with ten straight losses. Betting on McGreevy to get under 17.5 outs looks like a smart move. The Nationals are not hitting well, and McGreevy could take advantage of that. The biggest risk here is how closely matched these teams are, so it's possible he could face tougher competition than expected.

St. Louis Cardinals vs Washington Nationals: Jorbit Vivas Under 0.5 Batter - Hits (+117)

Jorbit Vivas has been hitting well lately, but the odds are against him in this game. At Busch Stadium, home runs are hard to come by, with balls staying in the yard much more than usual. This means it could be tough for Vivas to get a hit, especially since he's facing the Cardinals' solid pitching. While Vivas has been getting hits at a higher rate recently, the Cardinals are tough at home. Plus, the Nationals have struggled a lot on the road, losing ten straight games. With these factors in mind, betting on Vivas to get under 0.5 hits seems like a smart pick, even if it doesn't guarantee a win.

That is the whole read on this one. Prices can move before you get on, so check the board at your bookmaker. Bet what you can afford to lose. If betting stops being fun, take a break.