The difference between Type 1 and Type 2 obstruction - Baseball Rules Academy
Obstruction? Interference? Nothing? You Make the Call! - YouTube
Catchers Obstruction | UUASNJ
Obstruction Vs Interference | MLB - YouTube
Interference Definition as stated in Major League Baseball Rule 2.00 (a) Offensive interference is an act by the team at bat which interferes with, obstructs, - ppt download
Runner Interference Call Changed to Fielder Obstruction - Baseball Rules Academy
All About Obstruction...it Happened in the Major Leagues Again! - Baseball Rules Academy
Close Call Sports & Umpire Ejection Fantasy League: Comparison - Infield Interference or Only Obstruction?
Obstruction vs. Interference: What's the Difference? - Baseball Rules Academy
Ejection 067 - Nats Skipper Dave Martinez Tossed After Extra Inning Obstruction Call Gives Phils Run - YouTube
Defining Interference and Obstruction - Little League
What is baseball's obstruction rule? - Missourinet
Obstruction call becomes talk of baseball world - The San Diego Union-Tribune
Munro: Everything you need to know about catcher's interference — Canadian Baseball Network
Baseball Rules Academy: Who Has The Right Away? Baserunner or Fielder? — Inside the Seams
Mariners' France & Rays' Paredes Collide - Was it Interference or Obstruction? - Close Call Sports & Umpire Ejection Fantasy League
Type 2 Obstruction - Here's What You need to Know - Baseball Rules Academy
MLB - Inside the 2013 World Series obstruction call - ESPN