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Welcome to Marathon Ump

We are dedicated to celebrating the history, heritage, and heroes of baseball.

COMING SOON


Legends of the Game Series:

Negro Leagues


Step up to the plate and discover a league of legends.

From Satchel Paige's blazing fastball to the powerful swing of Josh Gibson, the Negro Leagues are filled with untold stories, rich history, and a legacy of resilience and excellence.

COMING SOON


Legends of the Game Series:

Roberto Clemente


A celebration of one of baseball's greatest heroes, both on and off the field. 

Baseball Who Am I? Series.

Hall of Famer Editon


Identify and answer trivia questions on 130 of the greatest to ever play the Great Game.


Games and Puzzles include:

- Hangman

- Cross Word Puzzles 

- Word Search

- Multiple Choice 

- On-line Trivia Contest matching you against other fans.

Buy Book on Amazon

Baseball Who Am I? Series.

Texas Rangers Edition


Identify and answer trivia questions on 156 players and managers from the history of the Texas Rangers.


Games and Puzzles include:

- Hangman

- Cross Word Puzzles 

- Word Search

- Multiple Choice 

- On-line Trivia Contest matching you against other fans.

Buy Book on Amazon

2025 Official Baseball Rules Expanded Study Guide. 


Covers all sections of the MLB rule book  for both "making the call" and "recording the call".


Each Chapter comes with: 


  • Summary of Key Points (Game Day Notes)
  • Exam Questions (Game Day Action)
  • Answers and Explanations for Exam Questions (Post Game Analysis)

Buy Book on Amazon

MLB Rules Knowledge Assessment

Exam is 25 random questions from all sections of the major league rule book.  At the end of the exam, you will see your score for each section and the correct answers for each question viewed.

Start Exam

Texas Ranger - Who Am I

Test your knowledge of the history of the Texas Rangers.


Click below to play.

Play

Texas Ranger Trivia

Texas Ranger Cross Word Puzzle of the Week.


Click below to play.

Play

Texas Ranger Trivia

Texas Ranger Word Search  of the Week.


Click below to play.

Play

Online Hall of Famer Quiz

Identify and answer trivia questions on the greatest of the great - Major League Baseball Hall of Famers.

Start Quiz

Lets go to the game !!!

Get your Tickets Here

MLBshop.com

Shop our unmatched selection of MLB gear available now at MLBshop.com 


Hey MLB fans!! Don't miss out on official gear from MLB Shop.

Start Shopping

Sports Fans Central

Purchase NFL,  MLB,  NBA, NHL, NASCAR merchandise here!!! 

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About Marathon Ump

Troy Ray Grimes (aka "Marathon Ump") is a baseball umpire and endurance athlete. 


He currently works as an umpire for the Texas Rangers Youth Academy. 


He has completed over 60 marathons/ultra-marathons including running 58 miles for his 58th birthday at the Bowling Green Hot Rods baseball ballpark.


Texas Rangers Youth Academy

Marathon Ump is proud to be a youth league umpire at the Texas Rangers Youth Academy’s RBI (Reviving Baseball in Inner Cities) league.


Contact Me

Send Message

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My supporters mean the world to me. Do you have questions or comments about my training and/or my products? Send me a message, and I will get back to you soon.

Marathon Ump


Copyright © 2025 Marathon Ump - All Rights Reserved.

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