Last weekend, Khris Davis of the Oakland Athletics hit three home runs against the Seattle Mariners. Naturally, Mariners Twitter began referring to Davis as a “Mariner Killer.” That’s understandable considering Davis has 17 homers against Seattle since joining Oakland in 2016.

Believe it or not, other active players have more bombs than Davis against Seattle. One of them hit home run number-19 against them last night— George Springer of the Houston Astros.

Once again, the term “Mariner Killer” began cropping up in the Twitter-verse and left me wondering.

Who are the all-time Mariner Killers?

Looking for a well-informed insight, I turned to a person with a wealth of Mariners knowledge: my wife. You see, my better-half has been a diehard fan for decades — long before she knew me. Without hesitation, she blurted out “Vlad Guerrero” and then went on to add she always knew her team was doomed when Pedro Martinez was pitching.

Hearing my bride’s response piqued my interest. Wanting to know who other passionate Mariners fans viewed as team killers, I turned to Twitter.

The replies I received were both interesting and diverse ranging from recent players to those long retired. There were even a few Hall of Famers sprinkled in. Here they are in no particular order:

Mariner Killers Identified By Fans
 Rafael Palmeiro Mark Teixeira  Manny Ramirez
 Jose Altuve Mike Trout Juan Gonzalez
Paul Konerko Shohei Ohtani Dave Henderson
Marcus Semien Mariano Rivera Jason Varitek
Mo Vaughn Jim Leyritz Jim Edmonds
 Garrett Anderson Eric Chavez Carols Delgado
 Luis Valbuena Jim Thome Kole Calhoun
Paul O’Neil Ian Kinsler Dave Stewart
Rickey Henderson Mark Ellis Dave Kingman
Kenny Lofton Yan Gomes Danny Tartabull
Brian Downing Lance McCullers Michael Young

Although Shohei Ohtani has yet to face the Mariners, someone suggested him and I got a chuckle out if it. In a way, he did kill Seattle by opting to join the Los Angeles Angels.

Okay, back to the original issue of determining the all-time Mariner killer.

In reality, it’s hard to name just one player as the Mariners biggest nemesis. As the the preceding table suggests, there are plenty of players who looked forward to visiting the Kingdome or Safeco Field.

With that in mind, I decided to identify a variety of opponents that were highly successful against Seattle from a statistical standpoint. The only prerequisites for consideration was was hitters had to have at least 150 plate appearances against the Mariners. For pitchers, the cutoff was 100 innings pitched.

Home Run King — Rafael Palmeiro (52)

As a long-time Texas Ranger, Palmeiro had plenty of opportunities to hit bombs against the Mariners. In total, he played 216 games and had 917 plate appearances.

The 2001 season was a particularly good one for Seattle and Palmeiro. The Mariners won 116 games and Palmeiro crushed 10 long balls and had two multi-homers games. That said; the Rangers only went 4-4 in the games the native Cuban went deep.

Runners-up: Manny Ramirez (39), Frank Thomas (36), and Mark Teixeira (36)

Hit King – Cal Ripken Jr. (261)

Considering the number of games Ripken played during his 21-game career, it shouldn’t be a surprise he’d have the most hits by an opponent.

In fact, the Hall of Famer appeared in more games (229) against Seattle than any other player. Palmeiro (216) and Harold Baines (213) were right behind him.

Runners-up: Michael Young (259), Wade Boggs (236), Palmeiro (230)

Best OPS – Carlos Delgado (1.191)

As you all know, OPS is the sum of on-base percentage and slugging percentage. Delgado holds the top spot in both categories against the Mariners. The left-handed slugger did the vast majority of his damage as a member of the Toronto Blue Jays.

In 1999, Delgado had six home runs and a .1.579 OPS during nine contests against Seattle. That season, the native of Aguadilla, Puerto Rico was especially lethal, although he did well against the rest of the league too with a .272/.377/.571 triple-slash.

Runners-up: Ken Singleton (1.142), Manny Ramirez (1.079), Vladimir Guerrero (1.014)

Highest Batting Average — Cliff Johnson (.353)

Yes, batting average isn’t the most effective measure of hitting proficiency. But I figured I’d throw it in since this piece is rife with nostalgia. So why not throw in an old-fashioned stat for old times’ sake?

Having said that, Johnson is the player with the highest batting average versus the Mariners. The former catcher and first baseman had 180 plate appearances and also notched a 1.003 OPS.

Runners-up:  Delgado (.351), J.T. Snow (.348), Boggs (.342)

Stolen Base King — Rickey Henderson (93)

Again, probably not a surprise that the all-time stolen base leader would have the owned Seattle in this category.

Henderson’s 85-percent success rate versus the Mariners was four points better than his career rate against all opponents. He also hit 16 home runs and had an .828 OPS against Seattle.

At age-41, Henderson played with the Mariners in 2000. Despite being well past his prime, the 10-time all-star swiped 31 bags. It would mark the last time he’d steal 30-plus bases in a season.

Runners-up: Paul Molitor (45), Kenny Lofton (35), Coco Crisp (28)

Mr. Double — Garret Anderson (56)

The two-time Silver Slugger winner played 14 full seasons with the Angels and faced the Mariners in 206 games during his career.

Despite his ability to hit two-baggers against Seattle, Anderson had a rather pedestrian .306 OBP against them; 18 points below his career average.

Runners-up: Wade Boggs (51), Cal Ripken (50), George Brett (47)

Mr. Walkabout — Frank Thomas (132 Walks)

This should be a non-surprise to fans. Thomas ranks tenth all-time with 1,667 career walks. Not only did the Big Hurt earn a ton of free passes, he clobbered 23 home runs.

Thomas’ knack for reaching base explains why the Hall of Fame first baseman and designated hitter has the third highest OBP (.419) ever recorded by a right-handed hitter with 3,000-plus plate appearances.

Who’s just behind Thomas? Mariners-icon Edgar Martinez (.418).

Runners-up: Rickey Henderson (131), Boggs (115), Palmeiro (105)

Property Of The Seattle Mariners – Josh Donaldson

Not every great player had their way with the Mariners. Donaldson has a putrid .581 OPS after 255 encounters with Mariner pitchers.

Last year was the first time the former AL MVP was above the ..635-mark when he posted posted a 1.212 OPS during the extremely small sample size of 13 plate appearances.

Runners-up: Buck Martinez (.594), Rod Barajas (.617), Kurt Suzuki (.620)

Feel The Breeze — Jose Canseco (150 Strikeouts)

Despite such a high strikeout total, Canseco managed to hit 28 home runs and maintain an .827 OPS.

The veteran of 17 seasons also stole 22 bases and walked 71 times during 130 games.

Runners-up: Tim Salmon (135), Dwight Evans (135), Michael Young (125), Mike Napoli (125)

Target Zero — Don Baylor (20 HBP)

It shouldn’t come as a surprise to anyone that the player hit by a pitch 267 times during his big league career is tops in this category. Baylor was good at other things too.

The late-great hit 24 home runs and 24 doubles against the Mariners during 19 seasons.

I’m sure some Seattle fans will feel a twinge of satisfaction seeing that A-Rod made this list.

Runners-up: Brian Downing (19), Mo Vaughn (15), Alex Rodriguez  and three others (12)

Strikeout King — Roger Clemens (274)

The seven-time Cy Young award winner was particularly brutal between 1987 and 1991 when he notched a 1.43 ERA during 10 starts — including eight complete games.

Overall, the University of Texas product had a career 2.56 ERA and had 12 complete games against the Mariners. That ties him for most with Mike Witt.

Runners-up: Jack Morris (189), Chuck Finley (180), C.C. Sabathia (174)

Who’s Your Daddy? – Pedro Martinez

For this category, I didn’t rely on one specific statistic and my selection may face resistance from some of you depending on your personal opinions and recollections.

That’s cool. But, as I see it, Martinez owned the Mariners better than any other starting pitcher.

Pedro only faced Seattle 14 times, which is 30 fewer than Clemens. But he was electric. During 103 innings pitched, the Hall of Famer averaged 12 SO/9, posted a 1.57 ERA, and held the team to a .177 batting average.

Besides, my wife said so. What’s a guy to do?

Modern Day Killer — Mike Trout

What would a list by me be if it didn’t include Mike Trout? Boring.

Among active players, the South Jersey native has been among the most lethal to the Mariners. At least that’s how I see it.

Trout has already netted 11 stolen bases, eight triples, and 24 home runs and is slashing .300/.395/.565 against Seattle. Oh yeah, and he’s just 26-years-old.

Others worthy of mention include Edwin Encarnacion (.961 OPS), Salvador Perez (.324 AVG), Joe Mauer (.416 OBP), and Miguel Cabrera (.923 OPS).

Modern Day Stopper — C.C. Sabathia

The New York Yankees left-hander may be getting long in the tooth, but he’s been a deterrent to the Mariners since he broke into the majors in 2001. Sabathia’s 2.57 ERA is the best among active starters with 80-plus innings.

It appears another southpaw is ready to wrest the title from Sabathia though — Dallas Keuchel. The Astro hurler has held Mariner hitters to a .209 batting average and a 2.67 ERA during 16 games. Keuchel continue his dominance last night at Safeco Field, although the home team won by a narrow 2-1 margin.

Keuchel’s teammate — Justin Verlander — has enjoyed great success too. In 24 starts, the Old Dominion University Monarch boasts a 9.1 SO/9 rate and a .236 opponent batting average.

Other Shareholders

I didn’t want to exclude any of the players mentioned on Twitter because I enjoyed hearing from Mariners fans last night. So here are the stat lines of the hitters not covered in detail, who proved to be proficient.

Manny Ramirez 39 .316 .423 .656
Vladimir Guerrero 30 .340 .408 .606
Dave Kingman 12 .286 .369 .564
Mo Vaughn 19 .286 .415 .514
Paul Konerko 32 .303 .367 .562
Mark Teixeira 36 .291 .369 .552
Juan Gonzalez 35 .294 .344 .576
Brian Downing 26 .296 .416 .504
Jim Leyritz 11 .293 .376 .513
Dave Henderson 13 .293 .343 .542
Jim Thome 17 .255 .405 .459
Danny Tartabull 14 .266 .404 .459
Eric Chavez 30 .274 .360 .487
Jose Altuve 7 .320 .372 .456
Luis Valbuena 13 .221 .310 .506

Not to forget the pitchers, here are the three names mentioned on Twitter. Some were better than others. All were pretty good.

Dave Stewart 204.2 5.5 0 3.75 .237
Mariano Rivera 78.2 9.2 37 2.63 .209
Lance McCullers 48.2 10.9 0 2.96 .210

Scrambled Memories

There were several players suggested, who didn’t feel like “Mariner Killers” to me in any way. I’m not saying they weren’t good or never succeeded against Seattle. But they didn’t perform at the same super high level as everyone already discussed. Still, I wanted to share their names.

Ian Kinsler 22 .265 .346 .442
Paul O’Neill 5 .289 .380 .407
Michael Young 18 .303 .346 .430
Jim Edmonds 9 .275 .322 .445
Marcus Semien 10 .256 .295 .472
Kole Calhoun 14 .249 .325 .427
Mark Ellis 7 .271 .324 .393
Jason Varitek 11 .233 .297 .383


By now, it’s pretty obvious to me, and probably you, that there are plenty of Mariner Killers out there. Who we perceive as a killer of our favorite teams can sometimes be skewed by a small sample size or a bitter memory from a defeat at the hands of this player.

It’s also important to recognize many of the names I’ve mentioned owned a lot of teams. There’s a reason many of them are Hall of Famers or trending towards Cooperstown.

Still, these kind of projects are so much fun. I hope you feel the same way. There really is no wrong answer to the question, but the conversations are stimulating.

I guess I would say that about any topic involving baseball.

Follow Luke!


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    Doug Decinces

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    Didn’t lead in any category and wasn’t suggested by any fans.

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    Figgins had a .651 OPS vs the Mariners.

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    They forgot Chone Figgins

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    Nomar Garciaparra? 341PA; .330/.372/.562 !

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