TJ Rumfield Tee Work Mechanics & Rockies Minor League Progression Lab

Bat Path & Contact Vector Simulator

Drill: Inside Tee Work & Barrel Path

Point: Low & Inside

Tilt: -6.5° Attack Angle

Launch Angle 16.8° Line Drive Arc

Projected Exit Velo 94.2 mph Solid Contact

Est. Distance 352 ft Coors Field Deep Gap

Contact Quality Barrel 92% Barrel Efficiency

Tee Setup & Swing Parameters

Bat Path Tilt (Attack Angle) -6.5 deg

TJ Rumfield locks in a disciplined entry angle to match pitch plane and avoid dropping the barrel inside.

Tee Height (Vertical Location) 25.0 in (Low)

Adjust ball placement relative to knees (18") up to chest height (42").

Plate Location (Horizontal Offset) -4.5 in (Inside)

Negative = Inside pitch (struck further out front); Positive = Outside pitch (let ball travel deeper).

Bat Speed at Impact 72.0 mph

Minor league benchmark for 1B/power prospect: 70-76 mph range.

Barrel Offset from Sweet Spot 3.0 mm

Distance from sweet spot node. 0mm = pure center of percussion.

MLB Network Feature Breakdown: TJ Rumfield's Tee Work Protocol

Key Detail 01

Staying Inside & Hinging the Barrel

Rumfield stresses not casting hands away from the body. On an inside pitch, the back elbow slots cleanly into the rib cage, keeping the barrel connected through the rotation rather than disconnecting early.

Key Detail 02

Tee Depth Relative to the Lead Hip

A classic tee trap is putting every pitch in the same center spot. TJ's routine sets inside pitches 3-4 inches out in front of the stride foot, while outside pitches are allowed to travel deeper into the zone.

Key Detail 03

Consistent Palm-Up, Palm-Down at Contact

At the instant of impact, the lead hand is palm-down, trail hand palm-up. Rolling over wrists early produces weak topspin grounders; locking this position yields crisp backspin line drives to the gaps.

Key Detail 04

Ground Force & Lower-Half Retention

Tee work isolates the upper half only if the feet are sloppy. Rumfield anchors the rear hip hinge, ensuring momentum translates upward through core torque before the barrel whips through contact.

Hitting Session Rep Tracker (3 Reps Recorded)

Session Avg EV: 92.8 mph • Barrel Rate: 67%

Rep #	Drill Preset	Tee Location	Attack Tilt	Exit Velocity	Launch Angle	Est. Distance	Quality

Rockies Minor League Slugger & Prospect Depth Context

Comparative organizational offensive profiles (AAA Albuquerque / AA Hartford)

Player	Position	Org Level	Bat / Thr	Hard Hit %	Avg Exit Velo	Max EV	Pull-Side Air %	Profile Note