薄球（Thin Shot）
Also known as: 刮球, 打薄了, 削顶球
薄球是指球杆前刃在球的赤道附近而不是下方触球——与肥球相反——产生一记低平、贴地飞行的击球。
薄球（在极端情况下也称为削顶球或刮球）是一种误击，球杆在球的赤道处或以上接触球，而不是在预定的下三分之一处。结果是一记低平、坚硬的飞行轨迹，距离比预期更远，但没有停球能力——球落地后会一路滚出，而不是带着旋转停下来。在极端情况下（“削顶”或“刮球”），球杆前刃接触到球的中部或上半部，产生一记难以控制的、尖锐低平的平飞球。
薄球的成因与肥球相反，但常常来自同样的根本原因，只是表现方式不同。例如，提前释放（翻手）根据程度不同，既可能造成薄球也可能造成肥球：中等程度的翻手会因球杆过早触底而造成肥球接触；而严重的翻手加上上挑动作，会在上挥阶段让前刃打到球的上半部，造成薄球接触。更常见的情况是，薄球源于提前站直（触球时身体站起，抬高了挥杆弧）或髋部打开不足，迫使手臂为了避开身体而向上挥动。
特定的薄球模式有其特定的成因：从紧实球位打出的削顶挖起杆球，通常是由翻手引起的，随后球杆的底部弹跳掠过草皮，前刃接触到球的中部；正常草皮上的薄铁杆球，通常是由提前站直或过度的脚跟抬起引起的；而薄球道木球，则常常是因为球位在站姿中过于靠后，导致在上挥阶段触球。
For thin iron shots, practice taking a divot. This means on the range, draw a line in the turf and practice hitting the line. This means the goal is for the divot to start at the line (or slightly ahead of it). This means you struck the ball before the ground. If you reliably miss the line without touching the turf, you are thinning the ball.
Use a launch monitor to track your attack angle on iron shots. This means thin shots often correlate with an excessively positive attack angle (hitting up on the ball with irons). Tour pro players typically hit 7-irons with attack angles between -4° and -6° (descending). If your attack angle is near 0° or positive with irons, you are setting up for thin contact, and working on forward shaft lean will bring the attack angle into the correct descending range.
Example
一名球手打出的沙坑挖起杆球低平地飞出，冲过果岭后段——这就是“削顶”或刮球，前刃打在了球的中点。
How it shows up on video
From a face-on camera angle, thin shots can be distinguished from fat shots in the impact zone. This means thin shots show the club catching the ball at or above its equator, often with the leading edge visible above the ground at impact. Early extension — the body rising through impact — is frequently visible preceding a thin miss. From a down-the-line angle, a thin bladed shot shows the club traveling on an upward arc at the moment of contact with the ball, rather than a descending or level arc. The absence of a meaningful divot with an iron on turf is also a reliable thin-shot indicator.
Common mistakes
- Trying to hit up on the ball to stop hitting thin shots. This means attempting to add an ascending blow to irons to make solid contact is exactly backwards. Irons should be struck with a descending blow; the ball launches up from the club's loft, not from an ascending swing.
- Keeping the head down too long. This means excessive focus on keeping the head down through impact can cause early extension as the golfer tries to look down. At the same time, the body needs to rotate through. Let the head follow the ball naturally after impact.
- Over-correcting from fat to thin. This means golfers who work on eliminating fat shots (by pressing the hands forward and hitting more steeply) sometimes over-correct into a very steep, narrow attack angle that produces thin shots of a different kind. Both extremes require calibration.
- Diagnosing thin shots without considering lie conditions — thin shots from tight lies or downhill slopes are more likely than from normal turf. Adjusting technique for unusual lies (using a narrower stance, less ball-position modification) prevents lie-induced thins.
In SwingVantage Motion Lab
SwingVantage can observe thin-shot patterns from video by identifying early extension (body rising at impact), upward arc through the impact zone. The club catching the upper half of the ball. These patterns are visible from both face-on and down-the-line footage and can be correlated with the trajectory and flight traits of the shot in question.
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