回垒
Also known as: 返回垒包, 退回垒包
回垒是指球未被打进场内时，跑垒员能够迅速退回原来所在垒包的能力，避免在离垒之后被牵制出局或触杀出局。
由于跑垒员在投球释放之前不能离开垒包，他们很少会被牵制出局，但在球被漏接或投偏的情况下，跑垒员可能会过度投入、需要匆忙退回。在界外球或没有触球的投球情况下，迅速果断地退回能防止混乱。正确的回垒技术是直接扑垒或转身冲刺回垒，用手在触杀到来之前够到垒包。成为一名优秀的跑垒员，意味着以同样的果断度知道何时该走、何时该回。
On any pitch not in play, get your weight back over the base immediately rather than fully committing your momentum forward. This means you can always go forward from a neutral position but not from full forward lean.
Develop a two-trigger decision system. This means go if the ball is clearly past the catcher and rolling away, return if there is any doubt. This means eliminate the pause between observation and decision that allows rundowns to develop.
Example
投手把一记下坠球投偏、球弹地，跑垒员起跑；当捕手迅速接回球时，跑垒员读出局势，安全地扑回一垒。
How it shows up on video
On video the return-to-base play appears as an explosive reversal — the body goes from forward lean to backpedal or full-turn sprint within a single step. Watch for the runner's eyes tracking the catcher's decision point after a passed ball. This means a smart runner reads the catcher's body language and returns before the catcher has the ball in their hand. At the same time, a passive runner waits until the throw is released. Dive-back technique is visible as the front hand reaching for the bag corner before the body contacts the ground.
Common mistakes
- Committing to advance on a ball in the dirt before confirming the catcher has lost control — costing an out on a recoverable pitch
- Returning slowly to the base on a foul ball, leaving the body in between bases and requiring a scramble rather than a decisive return
- Sliding back to the base instead of diving, which is slower and leaves the hand farther from the bag at the end of the return
- Not calling for the ball from the first baseman on a pick-off attempt, leading to unnecessary run-downs from poor defensive communication
In SwingVantage Motion Lab
Motion Lab analyzes return-to-base acceleration and the runner's decision timing on passed-ball and foul-ball situations, measuring whether return decisions are made proactively or reactively.
Frequently asked questions
头先扑回一垒合法吗？
合法——头先扑回一垒是合法的；禁止头先滑垒的规定只适用于推进到某个垒包，而不适用于返回垒包。
跑垒员什么时候应该尝试多推进一个垒包，而不是回垒？
当球明显越过捕手、滚出15英尺以上时，跑垒员应该在暴投或逸失球的情况下判读球的位置并推进，而不是自动回垒。
Related terms
Related guides & benchmarks
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