Washington Nationals vs Miami Marlins Prediction 8/21/2026 Today’s MLB Picks

Nikos Lagouretos

2 minutes ago

Aug 15, 2026; Cincinnati, Ohio, USA; Miami Marlins starting pitcher Ryan Gusto (65) pitches against the Cincinnati Reds in the third inning at Great American Ball Park. Mandatory Credit: Katie Stratman-Imagn Images

MATCHUP	Washington Nationals	Miami Marlins
Team Records	61-68	64-64
Spread	+1.5 -174	-1.5 143
Moneyline	+124	-150
Total	Over 8 (-118)	Under 8 (-102)
Where	loanDepot park, Miami, Florida
When	Friday, August 21, 2026
Time	07:10 PM EDT
TV	MLB.TV

In this article, we will formulate a Nationals vs Marlins Prediction for this MLB matchup on Friday, August 21st in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.

Miami Marlins Preview

The Miami Marlins hold a 64-64 record this season and sit in 3rd place in the NL East. They have a 38-25 home record and enter following a 1-4 loss against the Phillies. They will face the Red Sox and the Nationals next.

The Marlins have a .250 batting average this season, a .326 OBP, and a .402 slugging percentage. The Marlins’ pitching staff has a 3.96 ERA and a 1.25 WHIP. Otto Lopez leads the Marlins with a .308 batting average. Otto Lopez leads the team in RBI with 54 and adds a team-high 18 home runs.

Ryan Gusto (R) is the projected starting pitcher, with a 0-3 record with a 4.70 ERA and a 1.32 WHIP.

Washington Nationals Preview

The Washington Nationals carry a 61-68 record this season and sit in 4th place in the NL East. They hold a 34-32 road record and enter following a 0-2 loss to the Rangers. They will face the Rockies and the Marlins next.

The Nationals have a .249 batting average this season, a .325 OBP, and a .434 slugging percentage. The Nationals’ pitching staff has a 4.68 ERA and a 1.39 WHIP. CJ Abrams leads the Nationals with a .279 batting average. CJ Abrams leads the team in RBI with 91 and adds a team-high 30 home runs.

Brad Lord (R) is the projected starting pitcher, with a 5-2 record with a 4.04 ERA and a 1.25 WHIP.

Washington Nationals @ Miami Marlins Betting Trends: August 21, 2026

Probable Starting Pitcher: Ryan Gusto Record this season: 0-3 ERA: 4.70
Home Record: 0-1
Last 5 against Nationals: 1-0

Why the Miami Marlins will win

The Marlins have won each of their last nine games as favorites against NL East opponents.
The Nationals have lost 13 of their last 14 games against NL East opponents.
The Marlins have covered the run line in eight of their last nine games against National League opponents that held a losing record.
The Nationals have failed to cover the run line in eight of their last nine games against the Marlins following a loss.
The Marlins have led after 5 innings in eight of their last nine night games at LoanDepot Park against National League opponents.
The Marlins have led after 3 innings in five of their last six games as home favorites.

Probable Starting Pitcher: Brad Lord Record this season: 5-2 ERA: 4.04
Road Record: 3-0
Last 5 against Marlins: 0-0

Why the Washington Nationals will win

The Marlins have lost seven of their last eight games as home favorites following a road loss.
The road team has won each of the last three games between the Nationals and Marlins.
The Marlins have failed to cover the run line in each of their last 16 Friday games as home favorites.
The Nationals have covered the run line in each of their last four games against National League opponents following a road loss.
The Nationals have led after 3 innings in each of their last four night games against National League opponents.
The Marlins have trailed after 5 innings in five of their last six games against NL East opponents.

Total Runs Facts

Each of the Marlins’ last six games as favorites against NL East opponents have gone UNDER the total runs line.
Each of the Nationals’ last four games have gone UNDER the total runs line.
There has been no run scored during the first inning in 12 of the Marlins’ last 13 games against National League opponents.
There has been at least one run scored in the first inning in six of the Nationals’ last seven night games against NL East opponents.

Miami Marlins Player Prop Facts

Heriberto Hernandez has hit a home run in three of the Marlins’ last four home games against NL East opponents.
Xavier Edwards has recorded at least one hit in each of the Marlins’ last 11 home games against the Nationals.
Otto Lopez ranks 2nd in the league in Hits (153) this season.

Washington Nationals Player Prop Facts

Abimelec Ortiz has hit a home run in three of the Nationals’ last five games against NL opponents.
Jacob Young has recorded at least one hit in each of his last eight appearances with the Nationals as underdogs against NL opponents.
Nasim Nunez ranks 1st in the league in Steals (40) this season.

Matchup/League Facts

The Marlins rank 2nd in the league for triples this season (27).
The Marlins rank 2nd in the league for steals this season (130).
The Nationals rank 1st in the league for runs scored this season (676).
The Nationals rank 1st in the league for home runs this season (182).

Nationals vs Marlins Prediction

The Marlins are 7-1 in their last 8 meetings against the Nationals and are 4-1 in their last 5 meetings in Miami.

In this Nationals vs Marlins Prediction, the Marlins are coming as -140 home favorites. I like the Marlins in this one at home, as both teams are struggling and they are the lesser of two evils. They have been very strong at home and they will be facing a Nationals team that is 2-7 in its last 9 games and their offense has been ice-cold, as they average just 2.6 runs per game in their last 5, while the Marlins are scoring 6.4 runs per game against righties in the same span. Gusto has been in good form, having given up two runs or less in four of his last five starts, so take the Marlins to win this one at home.