@Mariners Mental Skills Coach | MA & PhD: Sport & Performance Psychology | Mental Game Guy with a 70-Grade BP Arm | “Un Pitcheo At A Time”
San Jose, CA
Joined November 2013
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🚨PSA🚨
Sport Psychology work is NOT a hobby, it is an evidence-based profession w/academic & professional standards.
If you work w/a “mental performance coach” or follow content online, remember that passion, interest & frequency of posts aren’t always indicators of expertise.
Another #CatcherCON25 clip!
The way you communicate impacts mental performance more than you think. @MentallyPerform
Become the best catching coach you can be at #CatcherCON26
Registration Opens: Sept. 8
Dates: Dec. 11-13
Location: Nashville, TN
Throwback to CatcherCON 2025! 🔥
@MentallyPerform gave an awesome presentation about controllable confidence. Messaging matters!
Start getting your plans ready for December, #CatcherCON26 will be here before we know it.
Registration Opens: Sept. 8
Dates: Dec. 11-13
Location: Nashville, TN
👀🔱📈
The @Mariners have THREE of baseball's 10 best prospects.
3. Colt Emerson
7. Ryan Sloan
9. Kade Anderson
New June update: baseballamerica.com/rankings…
Celebrating #StarWarsDay with some quotes from the original and GOAT Mental Performance Coach, Yoda. #MayThe4thBeWithYou
Kellen Lee retweeted
Hello, Yorger Bautista.
The @MsPlayerDev outfielder was the best Spring Breakout hitter we saw on Friday 👀
The 18-year-old had three batted balls 100+ mph.
More: baseballamerica.com/stories/…
Thank you for the feature, @ABCA1945 ! 🙏🧠📈
🧠 “Results drive fear and process creates confidence.”
Kellen Lee, Mental Skills Coach for the Seattle Mariners, shares practical ways coaches can help players shift their mindset, take ownership of their routines, and reframe failure into fuel for growth.
💬 From “daydreaming on purpose with a purpose” to turning slumps into opportunities, Lee breaks down what mental performance really looks like in baseball today.
📖 Read the full feature: abca.org/magazine/2026-1-Jan…
Kellen Lee retweeted
🚨New Episode! You don't want to miss this one!
We’re joined by Kellen Lee @MentallyPerform, Mental Skills Coach for the @Mariners, to talk mental performance! @NIAAA9100
Listen: hanginwiththead.com/891289/e… or Watch: youtu.be/rdU-mfWcfUU
Really enjoyed this conversation! Thank you for having me on! 🙏
🚨New Episode! You don't want to miss this one!
We’re joined by Kellen Lee @MentallyPerform, Mental Skills Coach for the @Mariners, to talk mental performance! @NIAAA9100
Listen: hanginwiththead.com/891289/e… or Watch: youtu.be/rdU-mfWcfUU
👀🔱🌎
MLB teams with the MOST players in the 2026 WBC ⬇️
⚾️ Mets - 17
⚾️ Mariners - 16
⚾️ Phillies - 15
⚾️ Red Sox - 14
⚾️ Royals - 14
⚾️ Pirates - 14
⚾️ Brewers - 14
Check out every MLB player participating in the tournament: buff.ly/r4uR68v
Kellen Lee retweeted
Everyone will touch on the switch pitcher phenomenon, but not enough people will touch on the character Jurrangelo has - cares about his teammates more than himself/wanted the org to be successful. A rare thing in today’s players coming up that gives me hope in future players.
🔱📈
Announcing our High Performance Staff, Minor League Coordinators and Roving Instructors for the 2026 season! #TridentsUp
🔗 atmlb.com/4bSrN19
Kellen Lee retweeted
Great presentation! Took so many notes and excited to share them with our staff.
Appreciate your time!
CatcherCON 2025 🔥
I was honored to speak at #CatcherCON25 this past weekend! I thoroughly enjoyed all of the connections I made and convos I had.
HUGE thank you to @xanbarksdale for the invite and well done for putting on such a pro event for all attendees and speakers! 🙏
CatcherCON 2025 🔥
I was honored to speak at #CatcherCON25 this past weekend! I thoroughly enjoyed all of the connections I made and convos I had.
HUGE thank you to @xanbarksdale for the invite and well done for putting on such a pro event for all attendees and speakers! 🙏
Kellen Lee retweeted
From CatcherCON yesterday.
Great presentation by Kellen Lee Mental Skills Coach for the Seattle Mariners. Some highlights:
1) CONFIDENCE- The belief that you have the ability to create the result you want.
2) Confidence is the anecdote of fear.
3) Simplicity breeds repeatability.
4) Clear mind & it’s easier access your skill set.
5) Skill doesn’t change second to second, mindset can.
What an awesome weekend at #CatcherCON25 ! It was honor to be a part of on an all star lineup of speakers and connect with so many great people!
Thank you, Xan for the invite! 🤙
Time to get locked in! We have Kellen Lee, Mental Skills Coach for the Seattle Mariners taking the stage to talk about the mental game. #CatcherCON25
