Rules knowledge, from the umpire’s side
See the game before the call is made.
My Business turns dense baseball rules into practical decisions for coaches, players, parents, and umpires—written by active Vermont umpire Michael Dupee.
What to expect
An active umpire’s perspective
Guidance is grounded in Michael Dupee’s work across youth, high-school, and professional-style rule codes—not anonymous summaries.
6
codes researched side by side
Built for people who move between rule sets during the same season.
12 mo.
updates on edge titles
Annual references are reviewed against current rulebook revisions.
From rulebook to dugout
Know what matters in the moment.
The material focuses on decisions that change innings: appeals, obstruction, substitutions, courtesy runners, batting order, pitching limits, and dead-ball timing.
- 01
Understand the call
Plain-language explanations show what an umpire can rule, what must be appealed, and when the ball is live or dead.
- 02
Compare the code
Cross-code references surface the differences that catch coaches, players, and officials when schedules span multiple organizations.
- 03
Use it competitively
Turn knowledge into better substitutions, cleaner communication, smarter baserunning, and fewer preventable mistakes.
- 04
Teach the whole organization
Team and league licenses, recorded instruction, and live workshops give every coach and family a shared foundation.
Founding offers
Start with one question—or equip the league.
Founding prices are limited and will not be repeated. Current official rulebooks remain the final authority.
Individual guides
Four Books, One Game
An annual cross-code reference for coaches and umpires.
$19 founding
$29 list · $12 annual renewal
View individual titlesBest complete reference
Complete Set
Both Competitive Edge titles plus Four Books, One Game. Built for people who want the rule and the strategic implication.
$69
$89 list · $49 new edition
Organizations from $79 per season
Single-team and player-count licenses are available, with live Zoom workshops from $1,000.
Explore all optionsMake the next call clearer
Bring an umpire’s perspective into your season.
Choose a guide for yourself or a season license for your team, club, or association.