Diamondbacks vs Red Sox Prediction 8/18/2026 Today’s MLB Picks

In this article we will formulate a Diamondbacks vs Red Sox prediction for this MLB game on Tuesday, August 18th at Fenway Park in Boston, Massachusetts. Let’s take a look at the prediction for this MLB matchup. 

Arizona Diamondbacks Betting Preview

The Arizona Diamondbacks are 66-60 this season after they lost game one by a score of 11-1 on Monday. Arizona allowed the first seven runs in the game and never recovered in the ugly loss. The Diamondbacks recorded four hits and they committed two errors in the game, while they were led by Perdomo, who went 0-2 with one RBI. Bratt allowed four hits and three earned runs over 3.0 innings for the loss, while Littell allowed six earned runs in relief. Prior to this series, Arizona won two out of three against the Braves, but lost two out of three against the Rockies before that. 

This season, Arizona has a 4.13 ERA with a 1.28 WHIP and a .251 opponent batting average, while they have scored 568 runs with a .243 batting average and a .315 on base percentage. Ketel Marte has led the Diamondbacks with 21 home runs and 67 RBIs, while Corbin Carroll has added 18 home runs and 57 RBIs. The projected starting pitcher for Arizona is Merrill Kelly, who is 8-10 with a 5.11 ERA and a 1.48 WHIP over 125.0 innings pitched this season. 

Boston Red Sox Betting Preview

The Boston Red Sox are 67-58 this year after they won game one by a score of 11-1 last night. Boston had their lead cut to 7-1 in the sixth inning, but they scored the last four runs for the blowout win. The Red Sox recorded 16 hits in the game and they were led by Abreu, who went 2-4 with two RBIs. Gamboa opened the game, while Bello threw 4.2 innings for the win. Prior to this series, Boston lost two out of three against the Pirates and three out of four against the Blue Jays. 

This season, Boston has a 3.50 ERA with a 1.22 WHIP and a .239 opponent batting average, while they have scored 560 runs with a .249 batting average and a .321 on base percentage. Willson Contreras has led the Red Sox with 25 home runs and 73 RBIs, while Jarren Duran has added 16 home runs and 61 RBIs. The projected starting pitcher for Boston is Ranger Suarez, who is 4-3 with a 3.25 ERA and a 1.19 WHIP over 108.0 innings pitched this year. 

Why the Boston Red Sox will win

• The Red Sox have won each of their last 14 games against teams that held a winning record.
• The Diamondbacks have lost each of their last six games against American League opponents following a road loss.
• The Red Sox have covered the run line in nine of their last 10 games against NL West opponents that held a winning record.
• The Diamondbacks have failed to cover the run line in each of their last five games as underdogs against AL East opponents.
• The Red Sox have led after 3 innings in seven of their last eight games at Fenway Park against opponents that held a winning record.
• The Red Sox have led after 5 innings in 12 of their last 15 night games against opponents that held a winning record.

Why the Arizona Diamondbacks will win

• The Diamondbacks have won five of their last six games as underdogs against the Red Sox.
• The Red Sox have lost each of their last three games as favorites against NL West opponents following a win.
• The Diamondbacks have covered the run line in each of their last eight Tuesday night games against AL East opponents.
• The Red Sox have failed to cover the run line in six of their last seven games as favorites against National League opponents following a win.

Total Runs Facts

• Four of the Red Sox’s last five home games have gone OVER the total runs line.
• Seven of the Diamondbacks’ last nine road games against American League opponents have gone UNDER the total runs line.
• There has been no run scored during the first inning in eight of the Red Sox’s last nine games as home favorites against NL West opponents.
• There has been at least one run scored in the first inning in each of the Diamondbacks’ last six Tuesday night games.

Boston Red Sox Player Prop Facts

• Ceddanne Rafaela has hit at least one home run in three of the Red Sox’s last four games against NL opponents that held a winning record.
• Ranger Suarez has recorded five or more strikeouts in five of his last six appearances against the Diamondbacks.
• Jarren Duran has recorded at least one hit in each of his last nine home appearances against NL West opponents.

Arizona Diamondbacks Player Prop Facts

• Nolan Arenado has hit a home run in three of his last four appearances at Fenway Park against AL opponents that held a winning record.
• Merrill Kelly has recorded four or more strikeouts in 16 of his last 20 appearances with his team as an underdog against AL opponents.
• Nolan Arenado has recorded at least one hit in each of his last nine appearances against the Red Sox.

Diamondbacks vs Red Sox Prediction 

Boston was able to dominate game one on Monday night to start this series with a win, but they have allowed eight runs in two of their last four games. The Red Sox are 30-31 at home this year, while the Diamondbacks are 30-33 on the road. Arizona has split their last four games, but they have scored three runs or fewer in three of their last four. The Diamondbacks are starting Kelly, who has allowed 6, 1, and 5 earned runs in his last three starts, while Suarez has allowed three earned runs in three of his last five. Take the over here.

David Racey's Pick: Over 8.5