Boston Red Sox vs Seattle Mariners Prediction, Odds and Preview - 09/14/2021

by Amedeus Mastrangelo

Game Time: 10:10 pm ET, Tuesday, September 14, 2021
Venue:  T-Mobile Park, Seattle, WA
Where to Watch:  MLB Network

 

Opening Odds at USA Sportsbooks

DraftKings:  Moneyline odds:  Red Sox -145, Mariners +125; Over/Under:  NL runs
Bet365:  Moneyline odds:  Red Sox -145, Mariners +125; Over/Under:  8 runs
BetMGM:  Moneyline odds:  Red Sox -145, Mariners +120; Over/Under:  8 runs
 

Season Record

Boston Red Sox:  81-64 (3rd place, AL East)
Seattle Mariners:  77-66 (3rd place, AL West)
 
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Boston Red Sox vs Seattle Mariners Preview and Analysis

 
Recent Form
Boston Red Sox:  5-5 last 10
Seattle Mariners:  6-4 last 10
 
 
 

Offensive Analysis

 
The Boston Red Sox are ranked 3 in the league for batting average (.260), 5 in the league for RBI (692), 3 in the league for hits (1276), and they are ranked 8 in the league for OBP (.327). The Seattle Mariners are ranked 30 in the league for batting average (.223), 20 in the league for RBI (587), 30 in the league for hits (1053), and they are ranked 29 in the league for OBP (.301).
 

Defensive Analysis

 
The Boston Red Sox are ranked 16 in the league for ERA (4.32), 3 in the league for saves (45), 6 in the league for strikeouts (1351), and they are ranked 26 in the league for WHIP (1.39). The Seattle Mariners are ranked 15 in the league for ERA (4.31), 5 in the league for saves (42), 23 in the league for strikeouts (1163), and they are ranked 14 in the league for WHIP (1.29).
 

 

Red Sox vs Mariners Prediction

The Boston Red Sox are taking on the Seattle Mariners on Tuesday in the 2nd game of a three-game series. The series opener is on Monday with that result still pending. The Red Sox lost their game on Sunday in their series finale against the Chicago White Sox 2-1. The Mariners have now lost 2 games in a row as they lost their last series to the Arizona Diamondbacks.

The Red Sox are coming into this game after losing 5 of their last 7 games. Eduardo Rodriguez will be getting the nod for Monday's game while Nathan Eovaldi will be the starting pitcher in this game on Tuesday. He is 10-8 with a 3.57 ERA this season. The Red Sox have done well with him on the mound recently winning the last 4 games he has started in. In his last start, he allowed 0 ER and 2 BB with 8 Ks on 3 hits in 7 IP against the Tampa Bay Rays. He has faced this Mariners lineup once this season and was credited with the loss as he allowed 5 runs in that game. The Red Sox's offense has been really inconsistent in their recent games as they have scored over 7 runs in some games but under 4 runs in others. The Red Sox have now fallen to the 2nd wildcard spot sitting behind the Toronto Blue Jays while the New York Yankees and the Mariners are storming up behind them looking to take that spot.

The Mariners are coming into this game after a 5-4 loss to the D-backs on Sunday. Logan Gilbert will be the starter for Monday's game while Tyler Anderson will be throwing the first pitch for them on Tuesday. He is 6-9 with a 4.20 ERA this season. He was recently acquired from the Pittsburgh Pirates and they have had a lot of success with him so far. The Mariners have won 5 of their last 6 games that he has started in. In his last start, he allowed 4 ER, 2 of them being HR, and 3 BB with 4 Ks on 7 hits through 4.2 innings of work against the Houston Astros. This will be his first time seeing the Red Sox lineup this season. The Mariners have started to pour on some runs in their last 5 as they look to make it into the postseason. They have scored 24 runs in their last 5 games averaging almost 5 runs scored per game in that span. Considering what is at stake here and how important this entire series is to both teams, there should be some more runs for them here as they continue their good hitting streak.

Both of these teams are in the wildcard race fighting for the last 2 spots in the American League. This series is so important as it could decide who gets that extra boost into the playoffs and who starts to spiral out of playoff contention. Both teams will be hungry to take the lead here and will not rest once they go down a few runs. There is value for a bet on the over in this game as the score could get driven up quite easily as both teams look for that all important win.

 
Red Sox Mariners Prediction:  Our MLB Pick for Tuesday, September 14, 2021 (10:10 pm ET start time) is Red Sox 7 Mariners 4.
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MLB Betting Trends

 
Boston Red Sox: 26-22 (-6.7 units) on the money line as a favorite of -125 to -175. 13-17 (-10.8 units) on the money line against AL West opponents.
Seattle Mariners: 55-48 (+29.9 units) on the money line as an underdog of +100 or higher. 18-13 (+12.3 units) on the money line against AL East opponents.
 

Key Injuries

 
Boston Red Sox:  J. Martinez (RF) Ques Mon - Back injury. P. Valdez (RP) Out indefinitely - Illness. D. Santana (CF) Out indefinitely - Illness.
Seattle Mariners:  A. Munoz (RP) Late Sept - Elbow injury. S. Haggerty (LF) Late Sept - Shoulder injury. J. Dunn (SP)Late Sept - Shoulder injury.
 

Players to Watch

 
Boston Red Sox: Rafael Devers is one player to watch in this game. He leads his team in home runs and RBI and he will need to get some here. His team is starting to spiral out of the playoffs and he can play a big part in trying to stop the bleeding by producing some runs and helping his team get a win here.
 
Seattle Mariners: Kyle Seager is one player to watch in this matchup. He leads his team in home runs and in RBI and he will need to produce as the wildcard race is getting very close. This series is huge as it could decide who falls too far out of playoff contention with few games left so watch for Seager to step up here and have a game.
 

Notable Quotes

"It's unfortunate, but he'll be back. He feels good." - Alex Cora on the players affected by covid-19 on his team.
 
 
"He's been probably one of our most consistent at-bats here over the last week or so, just grinding through it. Obviously, his niche is killing the lefties. He usually stays right on left-handed pitching, and he was right there again tonight." - Scott Servais on Tom Murphy hitting a double homer to lift his team to victory.
 
 

Starting Lineups

 
Boston Red Sox
E. Hernandez (CF)
K. Schwarber (DH)
H. Renfroe (RF)
X. Bogaerts (SS)
R. Devers (3B)
B. Dalbec (1B)
C. Vazquez (C)
D. Santana (LF)
J. Iglesias (2B)
 
Seattle Mariners
J.P. Crawford (SS)
M. Haniger (RF)
T. France (1B)
K. Seager (3B)
A. Toro (2B)
L. Torrens (DH)
T. Murphy (C)
J. Kelenic (CF)
D. Moore (LF)
 

Statistical Leaders

 
Boston Red Sox
Batting Average:  X. Bogaerts (.298)
Hits:  J. Martinez (146)
Home Runs:  R. Devers (33)
RBI:  R. Devers (104)
Stolen Bases:  C. Vazquez (8)
Wins:  E. Rodriguez (11)
Saves:  M. Barnes (24)
ERA:  G. Whitlock (1.92)
 
Seattle Mariners
Batting Average:  Ty France (.287)
Hits:  Ty France (144)
Home Runs:  Kyle Seager (34)
RBI:  Kyle Seager (94)
Stolen Bases:  DJ Moore (20)
Wins:  Chris Flexen (11)
Saves:  Diego Castillo (16)
ERA:  Casey Sadler (0.87)
 
Managers:
Boston Red Sox: Alex Cora (3rd season, non-consecutive)
Seattle Mariners: Scott Servais (6th season)
 

Weather Forecast

63 degrees F mostly cloudy, 66% humidity, 0% chance of rain, up to 7 mph wind speeds NE.


Amedeus Mastrangelo

About the Author:

Amedeus Mastrangelo has been heavily wagering on all sports for years and plays just about everything, including sides, totals, favorites, underdogs, against the spread, alternative spreads, first half, second half, player props, and futures. The bottom line is, if Mastrangelo can see an edge in any way shape or form, then he's going to take advantage.

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