Philadelphia Phillies vs Boston Red Sox Picks and Prediction for Tuesday May 12 2026

By: Kim Smith Published 05/12/2026, 12:30 AM ET
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The Philadelphia Phillies visit the Boston Red Sox on Tuesday, May 12, 2026, at Fenway Park in Boston, Massachusetts. First pitch is scheduled for 6:45 PM, with coverage available on MLB.TV. At the time of this writing the odds were not released. The gametime weather in Boston is listed at 60 degrees, setting up an early evening matchup between a Philadelphia team trying to build on recent wins and a Boston team looking to respond at home. Check out free MLB picks for more baseball predictions and analysis.

Starting Pitchers Set the Tone at Fenway Park

Philadelphia is scheduled to start Zack Wheeler, who enters with a 1-0 record, a 3.12 ERA, and a 0.98 WHIP across 17.1 innings. He has allowed 11 hits while striking out 18, walking six, and giving up one home run. Boston’s starter is listed as meaning a potential bullpen day. That gives Philadelphia the clearer starting pitching profile entering this matchup, especially with Wheeler’s WHIP sitting below 1.00 through the provided innings.

Philadelphia Brings Recent Offensive Confidence Into Boston

Philadelphia enters this game with a 19-22 overall record and a 7-10 mark away from home. The Phillies recently won over Colorado 6-0 and recently won over Colorado 9-3 after recently lost to Colorado 9-7 in 11 innings. Philadelphia also recently lost to the Athletics 12-1 before recently won over the Athletics 6-3. That recent stretch shows some inconsistency, but the Phillies have won three of their last five games and have scored at least six runs in three of those contests.

Philadelphia is batting .237 as a team with 170 runs, 331 hits, and 49 home runs. The Phillies have a .303 on-base percentage and a .396 slugging percentage. On the pitching side, Philadelphia owns a 4.57 ERA with a 1.41 WHIP, 126 walks, 394 strikeouts, and a .270 opponent batting average. The Phillies are also 12-14 in night games.

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The key strength for Philadelphia is power. The Phillies have hit 49 home runs, which is a clear edge over Boston’s 29. That power gives Philadelphia a path to change the game quickly, even though the overall batting average and on-base numbers are not overwhelming. The concern is the pitching profile, as the Phillies carry the higher ERA, WHIP, and opponent batting average in this matchup.

Boston Looks for a Home Reset After a Low-Scoring Loss

Boston enters at 17-23 overall with a 7-12 home record. The Red Sox recently lost to Tampa Bay 4-1, but before that recently won over Tampa Bay 2-0. Boston also recently lost to Tampa Bay 8-4 before recently won over Detroit 4-0 and recently won over Detroit 10-3. The Red Sox have won three of their last five games, though the most recent result was a quiet offensive showing at home.

Boston is batting .235 with 156 runs, 314 hits, and 29 home runs. The Red Sox have a .314 on-base percentage and a .353 slugging percentage. The pitching staff has a 4.00 ERA and a 1.29 WHIP, with 132 walks, 318 strikeouts, and a .245 opponent batting average. Boston is 9-12 in night games.

The biggest strength for Boston is run prevention compared to Philadelphia. The Red Sox have the better ERA, WHIP, and opponent batting average from the provided team numbers. However, Boston’s power production is a concern, with only 29 home runs compared to Philadelphia’s 49, and the Red Sox have also scored fewer total runs than the Phillies entering this matchup.

Philadelphia Phillies vs Boston Red Sox Picks and Prediction

Philadelphia Phillies vs Boston Red Sox Pick

  • Pick: Philadelphia Phillies Moneyline

Philadelphia gets the lean because the Phillies have the clearer starting pitching situation and the stronger recent run production. Philadelphia has won three of its last five games and scored six or more runs in three of those contests. The Phillies also hold a major power edge with 49 home runs compared to Boston’s 29. Boston has the better overall pitching numbers as a team, but with its starter listed as undecided and Philadelphia sending a starter with a 3.12 ERA and 0.98 WHIP, the Phillies are the preferred side.

Philadelphia Phillies vs Boston Red Sox Total Pick

  • Pick: Take the over if the total is set at 8.5.

I would lean over if the total is set at 8.5. Philadelphia has scored 170 runs and has shown recent offensive life with wins of 6-0 and 9-3. Boston has also had recent scoring upside, including a 10-3 win over Detroit and a 4-0 win in the same series. Philadelphia’s team ERA is 4.57 with a 1.41 WHIP, while Boston’s offense has shown enough in recent games to contribute. With Philadelphia’s power edge and both teams having recent run-producing performances, the over would be my lean at that number.

Final Score Prediction: Philadelphia Phillies 6 – Boston Red Sox 4

This prediction was written before the completion of game play on Monday.

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