Best Free Websites to Watch Seattle Mariners vs. San Francisco Giants – April 5, April 6 (Livestream Without Cable)

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Whether you're cheering for the Mariners' rising stars or the Giants' experienced lineup, this comprehensive guide provides everything fans need—from free streaming websites, official TV options, free trial services, to team news, injury updates, head-to-head records, and expert predictions.

Get ready for an exciting three-game showdown as the Seattle Mariners head to the Bay Area to take on the San Francisco Giants, live from Oracle Park in San Francisco, CA. This MLB matchup promises high-energy action as the Mariners aim to bounce back after a 1-2 series loss to the Tigers, while the Giants enter the series on fire following a dominant sweep of the Houston Astros.

Game 1 features a marquee pitching duel between Justin Verlander for the Giants and Luis F. Castillo for the Mariners (not the one you're used to!). The game is scheduled for Friday, April 4 at 1:35 p.m. PT / 4:35 p.m. ET / 2:35 p.m. MT, airing live on ROOT SPORTS Northwest and available via streaming.

Watch the Seattle Mariners vs San Francisco Giants live for FREE with a FuboTV free trial or stream with DirecTV Stream (“Choice” and “Ultimate” packages only).

Seattle Mariners vs San Francisco Giants – Game Schedule and Pitching Matchups

How to watch San Francisco Giants vs Seattle Mariners MLB game

Game 1: Friday, April 4

Time: 1:35 p.m. PT / 4:35 p.m. ET / 2:35 p.m. MT
Pitchers: Luis F. Castillo (SEA) vs Justin Verlander (SF)
TV Broadcast: ROOT SPORTS Northwest

Game 2: Saturday, April 5

Time: 6:05 p.m. PT / 9:05 p.m. ET / 7:05 p.m. MT
Pitchers: Bryce Miller (SEA) vs Robbie Ray (SF)
TV Broadcast: ROOT SPORTS Northwest

Game 3: Sunday, April 6

Time: 1:35 p.m. PT / 4:35 p.m. ET / 2:35 p.m. MT
Pitchers: Bryan Woo (SEA) vs Jordan Hicks (SF)
TV Broadcast: ROOT SPORTS Northwest

Best Free Websites to Watch Mariners vs. Giants (No Cable Needed)

Watching MLB games online without cable is easier than ever. Here are trusted and fan-favorite platforms where you can stream Mariners vs. Giants on April 5:

1. MLB.TV – Free Game of the Day

• Official Site: https://www.mlb.com/live-stream-games

• How to Watch:

  • Create a free MLB account.

  • Check if this game is the "Free Game of the Day."

  • Stream via browser or MLB app on smart devices.

Pro Tip: Even if this game isn’t free, MLB.TV offers a 7-day trial with full access to all games (subject to blackout rules).

2. MLB66.ir

• Website: https://mlb66.ir

• Why Fans Love It:

  • HD-quality streams

  • No login required

  • Live scoreboard, chat, and multiple stream links

Use an ad-blocker and VPN for better experience and privacy.

3. CrackStreams – MLB Section

• Website: https://crackstreams.biz/mlbstreams/

• Known for covering a wide range of sports including MLB, with live links appearing close to game time.

Official TV Channels and Streaming Services

If you prefer higher-quality, fully legal streams with expert commentary and replays:

For Mariners Fans – ROOT Sports Northwest

• Coverage: Washington, Oregon, Idaho, Montana, Alaska

• Streaming Platforms: FuboTV, DirecTV Stream

• Website: https://northwest.rootsports.com

For Giants Fans – NBC Sports Bay Area

• Coverage: San Francisco Bay Area

• Available On: YouTube TV, Hulu + Live TV, FuboTV

• Schedule: https://www.nbcsports.com/bayarea

MLB Network (MLBN)

• Availability: Nationwide (subject to blackout restrictions)

• Channel Info: https://www.mlb.com/network

Free Streaming Trials (100% Legal)

Want the full broadcast experience with no risk? Here are streaming services offering free trials:

Head-to-Head Record: Mariners vs. Giants

This interleague rivalry has always been tight and unpredictable:

Series Note: These two teams are 3–3 in their last six meetings. Games often go under 8 total runs, favoring strong pitching battles.

Team News & Starting Lineups

Seattle Mariners

• Probable Starter: Bryce Miller (RHP)

  • ERA: 4.76, WHIP: 1.25

  • Known for high-velocity fastballs and a strong start last season.

• Injury Update:

  • Ty France (1B): Day-to-day with minor wrist discomfort

  • Dylan Moore (UTIL): On 10-day IL (oblique strain)

• Players to Watch:

  • Julio Rodríguez: Leads the team in extra-base hits

  • Cal Raleigh: Slugging .500+ with emerging power behind the plate

  • Randy Arozarena: Offseason trade acquisition showing early impact

San Francisco Giants

• Probable Starter: Robbie Ray (LHP)

  • ERA: 5.06, K/9: 10.4

  • A former Cy Young winner, returning from injury and building momentum

• Injury Update:

  • Michael Conforto (OF): Expected to return from hamstring issue

  • Jung Hoo Lee (OF): Healthy and producing from the leadoff spot

• Key Bats:

  • Willy Adames: Big offseason signing, leads team in RBIs

  • Thairo Estrada: Hitting .310 and driving the offense from 2B

  • Patrick Bailey (C): Great behind the plate and hitting over .280

Expert Prediction: Who Wins?

This matchup features two clubs with postseason potential and deep rotations. Here's what the experts say:

• Vegas Odds: Giants -120 | Mariners +100 | Over/Under: 7.5

• Pitching Edge: Slight to Robbie Ray if he locates early.

• Offensive Edge: Mariners have more power; Giants more balance.

Predicted Score:

Giants 3 – Mariners 2

Tight game expected. Likely a late-inning bullpen battle.

Betting Insight: Take the under 7.5 runs, and consider the Giants moneyline if Robbie Ray looks sharp in the first two innings.

Final Thoughts

You don’t need a cable package to enjoy Mariners vs. Giants on April 5, 2025. Whether you choose MLB.TV’s free game, a 7-day FuboTV trial, or go with a trusted site like MLB66, this guide gives you safe, easy, and cost-free ways to watch the game.

If you're a fan of high-intensity matchups, elite pitching, and late-inning drama, this is one to circle on your calendar.

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