Fastball
Rising Fastball
The rise is an illusion. The ball never actually climbs. It's a high-backspin four-seamer that drops less than your eyes expect, so your brain reads the gap as the ball jumping up. No human has thrown one that truly rises.
The grip
There is no separate grip — it is simply a four-seam fastball thrown with high backspin; MLB's glossary describes the 'rising fastball' as a high-spin four-seamer that resists gravity slightly longer.
What it does
The ball does not actually rise. Backspin makes it drop less than the hitter's eye expects, reading as a gentle climb; for the Magnus lift to truly exceed the ball's weight a pitcher would need far more backspin than a human arm can produce — so a true rise has essentially never been thrown.
What it really is
It is the four-seam fastball — a perceptual label for a high-backspin four-seamer whose reduced drop fools the batter; physicist Alan Nathan frames the apparent rise as the ball falling less than expected, not moving upward.
Treated as an optical illusion: no true rising fastball has realistically been thrown in MLB conditions, per Alan Nathan and the Hardball Times physics analysis.
Who throws itInvoked for high-carry four-seamers (e.g., Shota Imanaga's deceptive 'rising' heater); the rise itself is perceptual, not physical.
Study this first
Study the filed Four-Seam, because that is what this is. A high-backspin four-seamer drops less than the eye expects and reads as a climb; there is no separate rising pitch to hold.
Basic file
This pitch has a sourced one-line grip and movement and an honest explanation, not yet a filed specimen with authored grip geometry and a full craft chapter. A fuller breakdown is coming; the source trail stays attached.
Others in the fastball
What did you notice? Ask about a detail, share a firsthand observation, or add a source to the conversation.