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The Pitch Index

Find the pitch you know, or follow a name you have never heard. Browse 42 pitches across 5 families: filed specimens open into grip study; basic files preserve the account we have.

42 pitches

Fastballs

9 in family

Offspeed & changeups

11 in family

Breaking balls

13 in family

Specialty

4 in family

Banned & doctored

5 in family

A wing of its own

Lost Pitches of the Negro Leagues

The statistics are being recovered; the technique mostly never will be. A box score survives; a grip does not. So every entry wears a documentation tier (Documented, Partial, or Legend) instead of faking a precision the record cannot support. The tier is the feature.

Enter the wing· 15 filed

Filed conversation

Voices beside the taxonomy.

The index names the families. These credited lessons show how pitchers and teachers keep testing, describing, and handing the craft forward.

Heritage file · TikTokJun 2026

Nolan Ryan on his four-seam and two-seam

Ryan in his own words on the two fastballs. The four-seam stays true and rides up on the hitter; the two-seam runs in on a righty and away from a lefty. It's the exact four/two split these specimen pages are built on, taught by the man who threw it.

Nolan Ryan didn't just throw gas — he understood movement. His breakdown of why the 4-seam plays up, and why the 2-seam is deadly running in on a right-handed hitter / away from a lefty.

Original post ↗

Embedded from TikTok; credited and never rehosted.

Trusted mind · TikTokJun 2026

Tyler Rogers' rising breaking ball

From a submarine slot barely a foot off the ground, Rogers’ breaker drops far less than the sinker it tunnels with, so it reads as rising — though gravity pulls it down the whole way. He calls it "a slider, but almost a curveball."

Tyler Rogers, Rising Curveball 🛸

Original post ↗

Embedded from TikTok; credited and never rehosted.

The whole repertoire

Every pitch, by family.

The accepted catalog at a glance, grouped by family and read by how common the pitch is. A solid dot is a filed specimen; a hollow dot is a basic file; a dashed node is an edge case - an alias, an illusion, or a name that is not really a distinct pitch.

Filed specimen Basic file Edge case

Fastballs

9

Thrown to ride, run, or sink. The four-seam is the reference every other pitch is measured against.

Offspeed & changeups

11

Fastball arm speed, less of the result. The deception is sameness; the ball just arrives slow, or late, or down.

Breaking balls

13

Spin turned sideways or over the top. Sliders cut, curves drop, sweepers sweep, and the names blur where they meet.

Specialty

4

The outliers: a fluttering knuckleball, a rainbow eephus, and the pitches that travel more on myth than on Magnus.

Banned & doctored

5

Outlawed in 1920, but never gone from the lore. A scuff, a smear, a shine: movement bought by breaking a rule.