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Rays vs Nationals Prediction 6/21/26 MLB Picks Today

Washington Nationals (40-37) vs. Tampa Bay Rays (42-31)
June 21, 2026 1:40 pm EDT
The Line: Tampa Bay Rays -136 / Washington Nationals 113; Over/Under: 8
(Get latest betting odds)

In this article we will formulate a Rays vs Nationals prediction for this MLB game on Sunday, June 21st at Tropicana Field in St. Petersburg, Florida. Let’s take a look at the prediction for this MLB matchup. 

Tampa Bay Rays Betting Preview

The Tampa Bay Rays are 42-31 this season after they split the first two games in this series by scores of 5-2 and 3-4. In game two, Tampa Bay led the game 1-0 in the first inning, but they allowed four of the next five runs, before falling short in the ninth. The Rays recorded 10 hits in the game and they were led by Caminero, who went 3-3 with one RBI. Seymour allowed seven hits and three earned runs over 5.0 innings for the loss, while Booser allowed one earned run in relief. Prior to this series, Tampa Bay lost all three against the Dodgers and two out of three against the Angels. 


This season, Tampa Bay has a 3.92 ERA with a 1.23 WHIP and a .239 opponent batting average, while they have scored 323 runs with a .256 batting average and a .335 on base percentage. Jonathan Aranda has led the Rays with 12 home runs and 51 RBIs, while Yandy Diaz has added 12 home runs and 48 RBIs. The projected starting pitcher for Tampa Bay is Nick Martinez, who is 6-2 with a 2.60 ERA and a 1.16 WHIP over 83.0 innings pitched this season. 

Washington Nationals Betting Preview

The Washington Nationals are 40-37 this year after they won game two by a score of 4-3 on Saturday. Washington allowed the Rays to tie the game at two in the third inning, but they scored once in the fifth and once in the ninth for the win. The Nationals recorded 10 hits in the game and they were led by Crews, who went 2-4 with one home run and one RBI. Cavalli allowed six hits and two earned runs over 2.2 innings, while Parker got the win and Beeter picked up the save. Prior to this series, Washington won two out of three against the Royals and two out of three against the Mariners. 

This season, Washington has a 4.64 ERA with a 1.39 WHIP and a .257 opponent batting average, while they have scored 413 runs with a .247 batting average and a .321 on base percentage. CJ Abrams has led the Nationals with 16 home runs and 56 RBIs, while James Wood has added 20 home runs and 48 RBIs. The projected starting pitcher for Washington is Andrew Alvarez, who is 1-0 with a 3.49 ERA and a 1.45 WHIP over 28.1 innings pitched this year. 

Why the Tampa Bay Rays will win

  • The Rays have won each of their last 10 day games against National League opponents following a home loss.
  • The Nationals have lost seven of their last eight road games against AL East opponents that held a winning record.
  • The Rays have covered the run line in 12 of their last 13 games as favorites against NL East opponents following a loss.
  • The Nationals have failed to cover the run line in seven of their last eight road games against AL East opponents that held a winning record.
  • The Nationals have trailed after 3 innings in seven of their last eight road games against AL East opponents that held a winning record.
  • The Nationals have trailed after 5 innings in seven of their last eight road games against AL East opponents that held a winning record.
  • The Nationals have lost the first inning in four of their last five games at Tropicana Field against opponents that held a winning record.

Why the Washington Nationals will win

  • The Rays have lost four of their last five games as home favorites after playing the previous day.
  • The underdogs have won six of the Rays’ last eight games at Tropicana Field.
  • The Nationals have covered the run line in each of their last seven road games against American League opponents after playing the previous day.
  • The Rays have failed to cover the run line in four of their last five games as home favorites after playing the previous day.
  • The Nationals have led after 5 innings in five of their last six day games against opponents that held a winning record.

Total Runs Facts

  • Seven of the Rays’ last eight games against National League opponents have gone UNDER the total runs line.
  • Five of the Nationals’ last six games as underdogs against the Rays have gone UNDER the total runs line.
  • There has been at least one run scored in the first inning in each of the Nationals’ last four day games.
  • There has been no run scored during the first inning in five of the Rays’ last six day games.

Tampa Bay Rays Player Prop Facts

  • Yandy Diaz has hit a home run in six of his last 11 home appearances against NL East opponents.
  • Yandy Diaz has recorded at least one hit in each of his last 20 appearances against NL East opponents that held a winning record.

Washington Nationals Player Prop Facts

  • CJ Abrams has hit a home run in four of the Nationals’ last five road games against opponents that held a winning record.
  • Keibert Ruiz has recorded at least one hit in each of his last 11 road appearances against AL East opponents that held a winning record.

Rays vs Nationals Prediction 

Washington was able to escape game two with a win on Saturday and they continue to be the highest scoring team in the MLB. The Nationals are 24-15 on the road this year, while the Rays are 25-10 at home. Tampa Bay has lost four of their last five games, but all four losses were by just one run. The Rays are starting Martinez, who has allowed 3+ earned runs in three straight starts, while Alvarez has allowed two earned runs or fewer in four of his last five outings, but has not gone five innings in any of them. Take the Rays here, as I trust Martinez way more than Alvarez. 

David Racey's Free Pick: Rays ML

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David Racey

David started writing about sports in 2015, but sports has been his passion for as long as he can remember. David spends most of his free time watching pretty much anything sports related from Baseball to Tennis and everything in between. David likes to analyze statistics and recent results to form an unbiased opinion on whatever game he is breaking down. Follow David on Twitter at @itsyerboi41

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