@DrivelineBB Hitting trainer | Wilmu baseball alum | Former Hitting Coach/Recruiting coordinator RCSJ-Cumberland
Joined March 2014
- Tweets 1,513
- Following 461
- Followers 575
- Likes 3,863
53 Photos and videos
Pinned Tweet
Apr 19
Easy practice doesn't build good hitters. It builds hitters who look good in practice.
Here's a model every coach should understand π
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Jack McDonald retweeted
Swing Design with @ConnorDaly2026
Connor came to Driveline to get ready for his freshman year of college baseball. Below are three points of emphasis from his Swing Design after his initial MoCap.
1β£ Negative move
2β£ Rotated at contact
3β£ Releasing the barrel
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Jack McDonald retweeted
LOUD day on the floor yesterday
94-97 Heaters incoming
Cue was get your A swing off a ball above where they think the pitch is
Fellas came ready
College Summer in full swing
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Jack McDonald retweeted
Jun 11
Jordan Walker's bat path changes
π΄2025
π΅2026
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Jack McDonald retweeted
Jun 10
A year's worth of progress for transfer portal OF @ParkerEastwood1
A well executed training plan has led to some serious gains over the last year
10 mph of bat speed π₯
14 mph of max exit velocity π₯
Progress that showed on field with his OPS jumping 258 points from last season. Somebody is getting a good player out of the portal βΌοΈ
Officially entering D1 June 1st Transfer Portal π¨
6' 200lbs / 19yrs / RH OF / 2yrs eligibility, 3 if 5 yr rule
.300 AVG | .900 OPS | 17 XBH | 5 HR | 110 PO
@carsonevanss @Bsbclips @prospectdugout @UncommittedStud @BaseballFactory @D1ProScouts
#D1Baseball #TransferPortal
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Jack McDonald retweeted
Jun 9
Highlights from a swing design w @rafaelfurcaljr
Goal was improving the consistency of his pull-side ball flight to allow his Bat Speed to translate more consistently into SLG
A major focus was to create a cleaner hand path & actually release the barrel
π§΅w details
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Jack McDonald retweeted
Jun 7
It's been a year since @wpowell24 first walked thru @DrivelineBB doors.
Well, he reassessed this past week and he hit 105.9mph EV. That is a 12.9mph increase in a year.
June 2nd 2025 - 93mph
June 3rd 2026 - 105.9mph
This is what good training and execution looks like.
May 31
@wpowell24 has put in some great work.
Here he is back in June of 2025 to his most previous reassessment last month. Quite a difference huh...
Let's look at what he improved atβ¬οΈ
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Jack McDonald retweeted
Jun 6
Adley Rutschman is posting an xwOBA from the right side that is .077 points higher than in 2025 βοΈ
There has been a rather large change to his path in 2026, on top of adding 1.5mph of bat speed
2025: .296 xwOBA πΉ
2026: .373 xwOBAπ»
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Jack McDonald retweeted
Clemson RHP Aidan Knaak's changeup is looking disgusting π€’
77.9 mph, 22.6" of horizontal break.
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Jack McDonald retweeted
Set the environment. Let them compete. Show them where they stack up.
XBH Derby (2B/3B 1, HR 2) | LHP FB 90
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Jack McDonald retweeted
Jun 5
Why would he cut his swing down??? What about his bat speed?? Your 80% swing is BETTER than your 100% swing. You can get away with your 100% swing on flips and BP but NOT in the game. @DrivelineBB @tiltbase @uTeeBaseball
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Jack McDonald retweeted
22 of our hitting athletes earned conference honors in 2026 π
Swipe to see every name β¬οΈ
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Jack McDonald retweeted
Jun 4
Offseason gains πͺπͺπͺ
Campos was in everyday in the offseason putting in the work. Getting strong is never a bad idea
Jun 3
What offseason training can unlock β‘οΈ
94th percentile speed will play
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Jack McDonald retweeted
Jun 4
A great example of why being able to swing fast and pull the ball in the air can dramatically improve the quality of a miss
Not too many cases where a batted ball with a 49Β° LA ends up as a homer unless you swing very fast and can hit the ball to the right part of the yard
Just one of 9 home runs to have a LA of 49Β° or higher in the Statcast era
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Jack McDonald retweeted
Jacob Jarrell bet on himself ahead of his senior season and it translated into a monster year for the Tigers π
.396 OBP | .579 SLG | .975 OPS | 18 HRs
Second Team All-ACC π
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Jack McDonald retweeted
Jun 4
My guy
Jacob Jarrell bet on himself ahead of his senior season and it translated into a monster year for the Tigers π
.396 OBP | .579 SLG | .975 OPS | 18 HRs
Second Team All-ACC π
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Jack McDonald retweeted
Week 1 for @DavidsonBASE Theo Loughlin
Key Focus -> Rotate in Footplant to create more separation bat speed
Theo brought up valid concerns beforehand on if that would affect direction.
It will not if done with posture and proper POC.
Making the bag deeper
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Jack McDonald retweeted
Jun 3
Truly absurd display of power from @collinpriest13 (1B, currently in the Portal)
100th percentile Bat Speedπ
Facility MoCap EV Record (113.7mph)
Facility Distance Record (476')
Collin Priest breaks facility record π¨
He absolutely mashed in his MoCap with us last week and broke the distance record previously held by *checks notes* Collin Priest.
He also recorded the highest bat speed number we've seen in an assessment (Florida facility).
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Jun 3
What offseason training can unlock β‘οΈ
94th percentile speed will play
WHAT A SHOT by Ryan Campos. 109 MPH liner for a solo blast.
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Jack McDonald retweeted
Jun 3
This Home run brought to you in part by swinging the bat very fast
Jun 3
Corbin Carroll sneaks one out the other way for his 8th home run of the year!
His 2.7 fWAR is tied for the 3rd-best in all of baseball π
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Jack McDonald retweeted
Jun 1
To beat Chase Burns, Bobby Witt Jr. has to be on time for the velo tonight.
@DylRobertson13 and @Travis_Sawchik break down the game plan.
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