Kellen Lee

@MentallyPerform

@wearebayfc Mental Performance Coach 🌁⚽️ | MA & PhD: Sport & Performance Psychology |

San Jose, CA Joined November 2013

1K Following 2.5K Followers 3.6K Posts

Latest posts 5

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Kellen Lee @MentallyPerform Aug 27, 2021

🚨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.

Kellen Lee @MentallyPerform Aug 23

Another #CatcherCON25 clip!

Xan Barksdale Verified account @xanbarksdale Aug 22

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

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Kellen Lee @MentallyPerform Aug 13

Throwback to CatcherCON 2025! 🔥

Xan Barksdale Verified account @xanbarksdale Aug 13

@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

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Kellen Lee @MentallyPerform Jun 4

👀🔱📈

Baseball America Verified account @BaseballAmerica Jun 3

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/2026-…

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Kellen Lee @MentallyPerform May 4

Celebrating #StarWarsDay with some quotes from the original and GOAT Mental Performance Coach, Yoda. #MayThe4thBeWithYou