Rangers vs Mariners Picks and Predictions: Seattle Continues Dominance against AL West Rival

Texas's season has gotten off to a disastrous start, winners of only two of their first ten games. We like that trend to continue as we're backing Seattle to win their third straight at home tonight. Find out more in our Rangers vs. Mariners betting picks.

Rohit Ponnaiya - Betting Analyst at Covers.com
Rohit Ponnaiya • Betting Analyst
Apr 20, 2022 • 15:21 ET • 4 min read
Eugenio Suarez Seattle Mariners MLB
Photo By - USA TODAY Sports

We've got a full slate on the MLB betting board this Wednesday with 16 games on tap, and the final contest will be taking place between the Texas Rangers and Seattle Mariners at 9:40 p.m. ET.

This is the second contest in a three-game set at T-Mobile Park and the Mariners are home favorites again after winning last night.

Here are our best free MLB picks and predictions for Rangers vs. Mariners on Wednesday, April 20.

Rangers vs Mariners odds

This odds widget represents the best odds available for each betting market from regulated sportsbooks.

This line hit the board this morning with the Mariners installed as -150 favorites with the Over/Under at 8. Early money has come in Seattle and the Under, with the line shifting to -160 with the total dropping to 7.5 at some books. 

Use the live odds widget above to track any future line movements right up until kickoff and be sure to check out the full MLB odds before placing your bets.

Rangers vs Mariners predictions

Picks made on 4/20/2022 at 2:30 p.m. ET.
Click on each pick to jump to the full analysis.

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Rangers vs Mariners game info

Location: T-Mobile Park, Seattle, WA
Date: Wednesday, April 20, 2022
First pitch: 9:40 p.m. ET
TV: MLB Network

Rangers vs Mariners betting preview

Starting pitchers

Dane Dunning (0-0, 5.19 ERA): Dunning is coming off a performance against the Angels where he allowed two runs before getting the hook midway through the fourth inning. Dunning racked up seven strikeouts in that contest but also surrendered six hits and threw a whopping 86 pitches despite not even making it halfway through the game. 

Logan Gilbert (1-0, 0.90 ERA): The 24-year-old has looked very impressive to start the year, holding opponents to a batting average of .184 and allowing just one run while fanning 11 batters through 10 innings. He was solid as a rookie last season pitching to a 4.68 EA with a 1.17 WHIP in 24 starts despite being overly reliant on his four-seamer.

Weather

Be sure to monitor the gametime conditions with our MLB weather info.

Key injuries

Rangers: Josh Sborz RP (Out), Dennis Santana RP (Out).
Mariners: Mitch Haniger OF (Out), Luis Torrens C (Out), Kyle Lewis OF (Out), Sergio Romo RP (Out), Casey Sadler RP (Out).
Find our latest MLB injury reports.

Betting trend to know

The Rangers are 6-21 in the last 27 meetings between these AL West foes. Find more MLB betting trends for Rangers vs. Mariners.

Rangers vs Mariners picks and predictions

Our side and total predictions are based upon our analysis of the line and total in this game. Our best bet is our favorite pick across all markets.

Moneyline analysis

The Rangers have lost four games in a row and are 2-8, despite ranking fourth in the majors in scoring with 5.22 runs per game. That said, they are bound to have some offensive regression when you consider that they are just 18th in OPS (.667) and 29th in Barrels per Plate Appearance (3.6%).

Sure, adding Marcus Semien and Corey Seager in the offseason improved an anemic lineup, but they still likely don't belong in the top half of the majors. 

The Rangers' biggest problem is pitching, with Texas ranking dead-last in the bigs in ERA (6.65), OBA (.287), and opponent OPS (.897). 

Dane Dunning takes the mound for Texas today and he's looked very shaky this season after pitching to a 4.51 ERA with a 1.44 WHIP in 25 starts last year. The Rangers also have a brutal bullpen that currently has the worst ERA in the majors.

The Mariners' offense has been unimpressive, sitting 13th in the majors in OPS (.689), but they've been throwing the ball very well which has helped them win four of their last five games.

Logan Gilbert will get the start today and he looks poised for a breakout campaign, as he rounds out his entire arsenal and gets better location on his electric fastball. Gilbert has looked sharp in his first two starts of the season and the M's bullpen has been even better. 

Seattle's relievers were one of the team's strengths in 2021 and have been dominant so far this year, pitching to a collective 0.87 WHIP with an MLB-best OBA of .165.

With the Rangers just 2-17 in their last 19 games in Seattle, we'll back the home side with the better pitching.

Prediction: Mariners ML (-150 at bet365)

Over/Under analysis

T-Mobile Park is one of the most pitcher-friendly parks in the majors but the total of 7.5 seems a tad too low here, especially when you consider how terrible the Rangers' pitching has been.

In addition, the Mariners have actually been hitting the ball well at home, plating 24 runs in four contests despite getting shut out by Astros ace Justin Verlander on Saturday. 

Dunning and the Rangers bullpen certainly aren't on Verlander's level and the M's have enough pop in their lineup to put up some runs. 

With the Rangers lineup also overachieving so far this season, we'll take the Over here.

Prediction: Over 7.5 (-110 at Sports Interaction)

Best bet

In his first full season in the bigs last year, Rangers' first baseman Nathaniel Lowe put up some solid numbers slashing .264/.357/.415 with 18 dingers and 72 RBI. That said, while Lowe did an excellent job of hitting off-speed pitches, he had a tendency to struggle against fastballs. 

Lowe was very vocal about working on that weakness during the offseason and it seems to be paying early dividends, with the 26-year-old currently boasting a .616 wOBA with a whiff rate of just 12.9% against four-seam pitches. That's good news for Texas fans tonight, with Seattle starting a guy who has thrown his fastball on more than 61% of his career pitches. 

Lowe has been on fire this season, leading the club with a .359 batting average while picking up a hit in nine of 10 games. He has racked up at least a single in eight of those contests (including six in a row), and we like him to go Over 0.5 on his total singles tonight.

Pick: Nathaniel Lowe Over 0.5 singles (+105 at BetMGM)

MLB parlays

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Pages related to this topic

Betting Analyst

With a background playing soccer, rugby, and boxing, combined with a journalism degree, it's little surprise that Rohit gravitated towards the world of sports betting. He specializes in betting on UFC and college basketball, two sports where the eyeball test can tell you a lot more about matchups than any analytics. Rohit has years of experience handicapping NFL and NBA games as well as niche betting markets such as politics and Oscar odds. He's also the resident CFL expert and formerly hosted "The Chez and Ro Show" with former CFL star Davis Sanchez.

You can catch Rohit breaking down every UFC event with Joe Osborne on "P4P Picks" on the Covers YouTube channel and he also has regular appearances on "Before You Bet" with Joe. In addition, he's a regular guest on "By The Book" on the Monumental Sports Network and makes guest appearances on VSIN's "The Handle" and CBS Sports.

Rohit primarily makes his bets at bet365, which offers a wide variety of prop markets, but also has accounts at several others so he can shop around for the best prices. For Rohit, bankroll management is key. He believes you should never bet what you can't afford to lose and maximize those few betting opportunities where books misprice a line.

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