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Sample Baseball Report: Rollover & Low Exit Velocity

A worked example for a hitter who keeps rolling over into weak ground balls. Your real report is built from your own swing.

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Baseball swing report

Full-swing analysis

SESSION SV-0842· sample· 30 FPS · down-the-line

01 · The one fix

Primary fix identified

Stay through the ball with a palm-up / palm-down hand position at contact and let the release happen AFTER the ball, driven by sequence rather than an early flip.

Exit velocity is bat speed plus quality of contact. Catching the top half of the ball turns hard swings into soft grounders. Staying through the ball converts those into line drives — usually a bigger gain than swinging harder.

Illustrative example (not your data)A clear open-side video gives a confident read on contact-point and release timing. Bat speed and exit velocity numbers would need a sensor or radar to confirm.

Where it happens in your swing

P1

Stance

Clean

P2

Load

On time

P3 · FAULT ZONE

Swing

Top hand rolls early

P4

Contact

Face closed

02 · The evidence

  • At contact the top-hand palm is already turning down (should still be up)
  • A wrappy, around-the-body finish suggests the barrel left the zone early
  • Reported weak pull-side grounders match an early-roll, closed-face contact

What this report can't know

Illustrative example (not your data)
  • Exact bat speed or exit velocity without a sensor/radar
  • Whether it is timing vs. mechanics until we also see live pitching
  • Bat fit and any physical limitations — use age-appropriate gear and stop if it hurts

03 · Three drills tied to this fix

DRILL 1Tee, palm-up checkpoint

Set a tee at belt height. Swing slowly and stop at contact to check that the top-hand palm faces up. Groove arriving at the ball before the wrists release. 2 sets of 10.

DRILL 2Two-tee path drill

Place a second tee a ball-width in front of the contact tee toward the pitcher. Drive both — staying through to the front tee keeps the barrel in the zone. 2 sets of 8.

DRILL 3Opposite-field tee work

Move the tee slightly back and hit line drives the other way. Going oppo is nearly impossible if you roll over, so it trains a late release. 2 sets of 10.

04 · Your 7-day plan

Days 1–7

Days 1–2

Palm-up checkpoint, slow tee reps only. Feel the hand position at contact.

Days 3–4

Add the two-tee path drill. Reward flush contact over power.

Day 5

Opposite-field tee work to lock in a late release.

Day 6

Mix all three, then add easy front-toss keeping the same feel.

Day 7 · RETEST

Retest: re-film from the same open-side angle; chart contact.

~15 min/day · ends in a retest

05 · Retest to prove it

  • Line-drive rate vs. weak-grounder rate
  • Top-hand position at contact (palm up vs. rolled)
  • Exit velocity off the tee (if measured)

On day 7, re-film from the same open-side angle and hit 10 tee balls. Freeze at contact: is the top-hand palm up now? Chart line drives vs. grounders over the next two weeks.

This is an illustrative example built from sample data, not a real player’s result, and not certified instruction. SwingVantage gives heuristic estimates that sharpen with more swings. Youth athletes should practice with adult supervision.

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