Pop-Up (Batting)
Also known as: pop-up, infield fly, sky ball
A pop-up is a batted ball with extreme backspin and a very steep launch angle (above 50°) that goes nearly straight up and is almost always caught for an out.
Pop-ups result from the barrel making contact below the centre of the ball — a descending swing path that catches the bottom third. High pop-up rates are strongly correlated with under-and-over swing paths, low hands at load, steep drop of the barrel through the zone, or an attack angle that is too steep downward for the pitch height. Because pop-ups almost never result in hits, they are one of the most damaging outcome patterns in batting statistics. Reducing pop-up rate consistently correlates with higher batting averages.
Example
She popped up three fastballs in a row — the video showed her barrel dropping steeply through the zone and making contact below the equator of the ball.
Why it matters
SwingVantage identifies steep drop patterns in your barrel path that cause pop-ups before they show up in game statistics — you can fix the path before the results confirm the fault.
Related terms
- High-Hands SetupHigh hands in the stance or load position means the hands are set above the back shoulder — a launch position that gives the barrel a longer, downward-into-the-zone path to the ball.
- Barrel PathBarrel path is the trajectory the barrel of the bat travels through the hitting zone — matching it to the pitch plane for as long as possible maximises the chance of hard contact.
- Attack Angle (Batting)Attack angle in batting is the vertical angle of the bat path through the hitting zone. A slightly upward attack angle (+5° to +15°) matches the pitch plane for hard contact.
- Launch Angle (Batting)Launch angle in batting is the vertical angle the ball leaves the bat. Roughly 10–25° produces the hardest, most productive contact.
- Line Drive RateLine drive rate (LD%) is the percentage of batted balls classified as line drives (typically 0–25° launch angle with hard contact) — the batted-ball type with the highest expected batting average.
- Ground Ball RateGround ball rate (GB%) is the percentage of batted balls that are grounders — typically a negative indicator for power hitters, though contact hitters may use it strategically.
Related guides & benchmarks
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