01 / Hold
Start with the whole hand.
Index and middle fingers laid across the seams at the open end of the horseshoe, the seam that faces away from the body. Thumb underneath on the leather. Held loose toward the fingertips.
Paraphrased from the cited reference, not quoted. Corroborated by Wikipedia (Fastball) and eFastball.
The complete grip notes
- Lay your index and middle fingers flat across the wide part of the horseshoe seam, the part that faces away from you.
- Keep them about a finger-width apart. Pressed close is fine; just do not spread them wide.
- Rest your thumb underneath on smooth leather, centered below the two fingers.
- Hold it out toward the fingertips with a little daylight to the palm. Stay loose so the hand adds the least resistance it can.
Least resistance. Loose in the fingertips, shallow in the hand. Let it sling cleanly off the pads.
Index and middle fingers laid across the seams at the open end of the horseshoe, the seam that faces away from the body. Thumb underneath on the leather. Held loose toward the fingertips.
Paraphrased from the cited reference, not quoted. Corroborated by Wikipedia (Fastball) and eFastball.
Fingers cross the outward-facing horseshoe seam, pads resting where the two seams run closest together.
Wikipedia (Four-seam fastball) and (Fastball) agree: across the cross-seam that faces away from the body. eFastball corroborates.
Roughly a finger-width apart. Secondary instruction puts the gap near half an inch to an inch.
The weakest grip claim. Primary references prescribe no numeric gap, and Driveline treats spacing as athlete preference, from pressed-together to widened.
Thumb directly underneath the ball on smooth leather, its base sometimes overlaying a lower seam, centered between the two top fingers.
Strongly corroborated across Wikipedia (Four-seam fastball), Wikipedia (Fastball), and eFastball.
Held loosely toward the fingertips with a gap to the palm, the usual cue for a quick, clean release. Not universal.
Surfaced disagreement: eFastball also says to squeeze, and Driveline declines to prescribe pressure at all. Shown as the standard cue, not an absolute.