Alex Duffy @DuffBaseb

Swampscott freshman baseball coach 2024-2025/ Baseball Data Analyst Intern, Northshore Navigators / Boston College MS 2027/ Boston College Softball Manager Joined June 2024

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The current AL Cy Young favorite is using K-BB%, xwOBAcon, and Z-Contact% to evaluate himself, explicitly saying that ERA is a misleading stat. Baseball evaluation has changed dramatically in the past decade

New York Post Sports @nypostsports

2 weeks ago

Cam Schlittler tells us the stats he values more than ERA despite having the lowest in MLB. The Show with @Joelsherman1 & @JonHeyman ➡️ trib.al/pymfN5R

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Xen Penny @XenPenny

2 weeks ago

One of the best in the game. Love learning from one of my best friends. Study his page.

Anderson Miller @AndersonLMiller

3 weeks ago

Post Contact Direction: Stay on The Line

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Jake “JBOY” Crain @JakeCrain_

3 weeks ago

College softball is the best women’s sport and it’s not close

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Alex Duffy @DuffBaseb

3 weeks ago

@ShelbyCHilliard @s_lex23

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Baseball IQ @BaseballIQ_App

4 weeks ago

🚨Razorback Speed Training • Deep Tier Plyo • Lateral X-over Broad Jump • Chases/race/laser sprints ⭐️Versatile + Explosive Movements = Better Athletes

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Turner Pruitt @turnerpru8

a month ago

Catchers this should be automatic Missed bunt, or if you pick an errant dirt ball, immediately look to back pick. Runners are likely either leaning or far off the bag.

Xan Barksdale @xanbarksdale

a month ago

Sam Basallo capitalizes on the missed bunt. That’s a common backpick window — runner anticipates the ball down and you can get him leaning.

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Xavier Scruggs @Xavier_Scruggs

2 months ago

I thought bunting was dead…

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Ray Ballstein @RaysRanter

2 months ago

I took data of every MLB pitch since the beginning of 2024 Here’s how Bat Speed correlates to the following hitting metrics

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廣畑実　ミノルマン| Amazing CEO @HirohataMinoru

2 months ago

youtu.be/c8lgobIEPJ8?si… 体幹で打つ感じがわからない選手のためにドリル伝えてます。ポイントは、胸椎の回旋 #打撃 #AmazingTV

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Aakash Gupta @aakashgupta

2 months ago

The Kelce brothers accidentally explained one of the longest-running training mistakes in professional sports in under 30 seconds. A pitcher's delivery takes 1.5 seconds. The rest period before the next pitch is roughly 20 seconds. A starter who throws 100 pitches in a game produces somewhere between 2 and 3 minutes of total physical exertion across a 3-hour window. The work-to-rest ratio is approximately 1:20. That ratio maps almost perfectly to the ATP-CP energy system, the anaerobic pathway that powers movements lasting under 10 seconds. Sprinting. Jumping. Swinging a bat. Throwing a 97 mph fastball. Every meaningful action in baseball lives in this system. Distance running trains the opposite system. Aerobic metabolism. Slow-twitch muscle fibers. Type I fibers that are smaller, produce less force, and prioritize fatigue resistance over power output. Elite sprinters carry 60-80% fast-twitch fibers. Elite endurance athletes carry 60-95% slow-twitch. A 2008 study on collegiate baseball players found that combining endurance training with power training produced measurable drops in power output. You are literally remodeling the engine in the wrong direction. Training the aerobic system when every sport-specific action runs on anaerobic fuel. The tradition started decades ago because games last 3 hours and coaches confused game duration with physical demand. A game lasting 3 hours does not mean the athlete is exerting for 3 hours. A pitcher standing on the mound between pitches is recovering, not working. The correct training analog is a sprinter who runs 100 meters, walks back, and goes again. Driveline Baseball, Eric Cressey, and every major sports science program has been publishing this data for over a decade. Strength coaches at the MLB level largely moved to sprint-based and med ball protocols years ago. But the foul-pole-to-foul-pole jog still persists at the high school and college level because the coaches who played in the 90s trained that way and never updated. The Kelces just explained it to 3 million people faster than any journal ever could.

Gerry DeFilippo @Challenger_ST

2 months ago

Jason & Travis Kelce talking about the ridiculousness of baseball conditioning… “It makes no sense.” “You should be running SPRINTS or doing base running. Not running foul pole to foul pole.” STOP treating baseball players like marathoners

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Dylan Robertson @DylRobertson13

2 months ago

Early season swing fast pull the ball in the air propaganda!

MLB @MLB

2 months ago

Brandon Lowe hits the first home run of the 2026 season! #OpeningDay

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Baseball IQ @BaseballIQ_App

2 months ago

🚨 Dynamic Infielding Drill Circuit • Great set for working on fielding + throwing in motion. ⭐️ Video Credit: @BubbaParkx

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Alex Duffy @DuffBaseb

3 months ago

@TroyPSilva Connection - body turns to hit, not just pushing his hands. Also showing how hands/torso need to be loaded but proper sequencing allows for him to have them so far back and still unload them on time

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MLB Network @MLBNetwork

3 months ago

Wyatt Langford breaks down three of his biggest keys when hitting: 1. Have confidence at the plate 2. Work up the middle of the field 3. Compete in every count @Rangers | @YonderalonsoU

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Stance Doctor @StanceDoctor

3 months ago

Most hitters think the stride works like this: Foot forward… back hip stays cocked, coiled, loaded whatever the term, then WHAM. I get it. Sounds cool. But the swing isn’t a Looney Tunes slingshot. For instance, a toe-tap stride, the whole system moves forward together — head, torso, and lower half toward the pitcher in sync. Look at the yellow lines. (Start to finish) The roof → spine → base all move forward into the position to fire. Where hitters get in trouble is when the foot goes forward but the head and torso stay back. Now they’re stuck on the backside… the front shoulder pops up and the barrel starts down too soon causing a steep swing with balls into the ground or missing under that one fastball. The stride isn’t just a step. It’s a controlled forward move of the whole system. Study the lines. Agree or disagree? ⚾️ Train with an expert. Not an influencer