Mariners vs Twins Prediction, Picks & Odds for Today's MLB Game

Quinn Allen - Betting Analyst at Covers.com
Quinn Allen • Betting Analyst 7+ years betting experience
Updated: Apr 27, 2026 , 10:21 AM ET • 4 min read

Allen's prediction: Castillo guides Mariners to series-opening win.

MLB

Match starts: 8 hrs
SEA
51 %
MIN
49 %
EXPERT PICK - MONEYLINE
Seattle -135 Seattle -135
Read Analysis
Seattle Mariners Luis Castillo MLB
Photo By - Reuters Connect. Seattle Mariners starter Luis Castillo (58) delivers a pitch.

The Seattle Mariners will be looking to keep their winning ways alive tonight when they begin a series with the Minnesota Twins at Target Field. 

My Mariners vs. Twins predictions will explain why I expect the M’s to take the series opener behind Luis Castillo on the bump. 

Read more for my MLB picks for Monday, April 27.

Who will win Mariners vs Twins today: Mariners moneyline (-135)

The Seattle Mariners have captured four straight victories heading into tonight’s contest. Luis Castillo gets the ball tonight, and he’s found his form lately. The righty is also very familiar with this Minnesota Twins lineup. 

Castillo has held their offense to a .195 average across 113 at-bats. Castillo has also allowed just three earned runs across his last two starts, and he’s only given up four earned runs on the road this year.

Seattle faces rookie Connor Prielipp this evening, who has held his own through three appearances. In his first start last week, Prielipp surrendered only two earned runs to the New York Mets.

However, he’s up against an M’s lineup which has scored 14 runs across its last two games.

I could see both guys throwing the ball well, but Castillo will be better, and Seattle will muster up enough offense to chase Prielipp relatively early. 

Covers COVERS INTEL: Minnesota’s bullpen has a horrid 4.85 ERA, and the Twins have also lost five straight games.

Enjoying Covers content? Add us as a preferred source on your Google account Add as a preferred source on Google

Mariners vs Twins Over/Under pick: Under 8.5 (+100)

While Seattle’s offense broke out a bit over the weekend, neither of these teams are scoring a ton of runs overall. The M’s are 22nd in runs scored, and they cashed the Under in two of the three games against the Cardinals. 

The Twins also took part in a low-scoring series with the Tampa Bay Rays, with the Under hitting in all three matchups as well. They also scored just five runs in that series, and Minny comes up against a very good arm in Castillo.

The Mariners’ bullpen is also elite, compiling a 3.18 ERA. Most of the offense tonight will come from Seattle, but don’t expect a ton. Pitching will be the storyline of the first game of this series. 

Quinn Allen's 2026 Transparency Record
  • ML/RL bets: 7-6, -2.94 units
  • Over/Under bets: 7-6, +0.19 units

Mariners vs Twins odds

  • Moneyline: Mariners -134 | Twins +114
  • Run line: Mariners -1.5 | Twins +1.5
  • Over/Under: Over 8.5 | Under 8.5

Mariners vs Twins trend

The Mariners have hit the Under in 10 of their last 13 away games (+6.80 Units / 48% ROI). Find more MLB betting trends for Mariners vs. Twins.

How to watch Mariners vs Twins and game info

Location Target Field, Minneapolis, MN
Date Monday, April 27, 2026
First pitch 7:40 p.m. ET
TV Mariners.TV, Twins.TV
Mariners starting pitcher Luis Castillo
(0-1, 5.01 ERA)
Twins starting pitcher Connor Prielipp
(0-0, 4.50 ERA)

Mariners vs Twins latest injuries

Mariners vs Twins weather

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.

Pages related to this topic

Quinn Allen - Covers
Betting Analyst

Quinn Allen is an experienced sports journalist from Vancouver, Canada who fell in love with sports by the time he could walk. He proceeded to play high-level baseball and soccer growing up and eventually played college baseball in the United States.

After his career ended, Quinn received his broadcast journalism degree from BCIT and has since written for many sports publications including ClutchPoints, Gino Hard, and RG, where he plies his trade as a writer and editor.

Quinn's favorite team is Chelsea FC and he'd like to watch a match at Stamford Bridge one day. He loves to bet on NBA player props and encourages others to bet responsibly and not chase losses.

Popular Content

Covers is verified safe by: Evalon Logo GPWA Logo GDPR Logo GeoTrust Logo Evalon Logo