Beginner

팝업 (타격)

Also known as: 팝업, 인필드 플라이, 스카이볼

Definition

팝업은 극단적인 백스핀과 매우 가파른 발사각(50도 이상)으로 거의 수직으로 솟아오르는 타구로, 거의 항상 아웃으로 잡힌다.

팝업은 배럴이 공의 중심보다 아래에서 컨택트할 때 발생한다. 아래로 향하는 스윙 패스가 공의 아래쪽 3분의 1을 맞히는 것이다. 높은 팝업 비율은 언더-오버 스윙 패스, 로드 시 낮은 손, 존을 통과할 때 배럴이 가파르게 떨어지는 것, 또는 pitch 높이에 비해 지나치게 가파른 하강 어택 앵글과 강하게 연관된다. 팝업은 거의 안타로 이어지지 않기 때문에 타격 통계에서 가장 손해가 큰 결과 패턴 중 하나다. 팝업 비율을 낮추는 것은 꾸준히 더 높은 타율과 연관된다.

Beginner tip

During tee work, set the tee at shoulder height and practice keeping the barrel parallel to the ground through the contact zone rather than driving the barrel down at the tee. This means parallel barrel paths at shoulder height produce the flat-to-slightly-upward approach that eliminates most pop-ups.

Advanced note

Compare your pop-up rate data on high fastballs versus low changeups. This means if pop-ups cluster on high pitches but not on low ones, your load position or attack angle is the cause. If they occur across all pitch heights, the barrel path angle is the issue and requires different corrective work.

Example

그녀는 패스트볼을 세 번 연속 팝업으로 날렸다. 영상은 배럴이 존을 통과하며 가파르게 떨어져 공의 적도선 아래에서 컨택트하는 것을 보여줬다.

Why it matters

SwingVantage는 팝업을 유발하는 배럴 패스의 가파른 하강 패턴을 경기 통계에 나타나기 전에 미리 감지한다. 결과가 확인되기 전에 경로를 고칠 수 있다.

How it shows up on video

On video, pop-up mechanics are visible in the angle of the barrel relative to the ground at the contact point. This means a barrel that arrives at a steep downward angle is nearly guaranteed to make contact below the ball's equator. Common error signatures include the back shoulder dropping by a lot lower than the front shoulder at contact (creating a severe tilted plane that drives the barrel under the ball), the barrel tip pointing toward the ground at contact rather than remaining on the pitch plane. The hands finishing above the head in the follow-through (indicating the barrel drove severely upward after undercutting the ball).

Common mistakes

Dropping the back shoulder sharply in an attempt to "lift" the ball. This paradoxically causes the barrel to undercut the ball more severely and produces higher pop-up rates than a flatter swing would
Setting up with low hands at load. This forces the barrel to travel upward to reach the high-pitch contact zone and produces steep undercutting contact on fastballs in the upper third
Confusing the launch angle goal (positive launch angle, ideally 10–25 degrees) with the barrel path approach angle (which should match the pitch plane, not arc upward toward it)
Over-correcting for a ground ball problem by exaggerating upward barrel angle. This shifts the contact window from the ball's equator to below it and trades a ground ball pattern for an equally problematic pop-up pattern

In SwingVantage Motion Lab

SwingVantage measures the barrel approach angle at the contact point frame and correlates steep downward barrel angles with pop-up outcomes in the session dataset. The system can identify whether the pop-up pattern is consistent across all pitch heights (indicating a systematic barrel-path angle problem) or is concentrated on specific heights (indicating a hand-height or attack-angle calibration issue for those specific zones).