Plat Pitcher
Also known as: pitcher's plate, rubber
Pitching rubber adalah lempengan karet putih di mound pitcher tempat pitcher harus memulai dan menyelesaikan legal delivery. Meninggalkan atau menyeret dari rubber secara salah menghasilkan illegal pitch.
Pitcher slow-pitch harus memiliki setidaknya satu kaki di atas atau menyentuh rubber saat pitch dilepaskan. Rubber menambatkan delivery pada jarak tetap dari plate, memastikan arc dan timing konsisten di seluruh pitcher. Ini juga mendefinisikan pelanggaran posisi ilegal — jika kedua kaki sepenuhnya lepas dari rubber saat release, pitch-nya ilegal. Pitcher yang baik mendorong dari rubber untuk menghasilkan momentum maju dan konsistensi arc.
Place both feet on the rubber before each pitch, step forward with your stride foot, and push off with your back foot. This means this simple sequence keeps you legal every time.
Experiment with lateral foot position on the rubber (center vs. Sides) to find the alignment that produces your most consistent arc, then mark that spot with tape in practice.
Example
Kaki belakang pitcher tetap menyentuh rubber melewati release, memuaskan wasit dan menetapkan jarak delivery legal.
How it shows up on video
Film the pitcher's feet at the moment of release and confirm at least one foot is in contact with the rubber. This means toe contact counts. But a clearly lifted back foot does not. Watch for a consistent push-off with the back foot driving forward rather than a flat-footed release, which indicates poor rubber mechanics. After repeated pitches, check whether the rubber position is consistent or whether the pitcher is gradually drifting forward, shortening the effective legal distance.
Common mistakes
- Lifting both feet off the rubber before the ball is released, creating an illegal-position violation that umpires will call immediately
- Failing to push off the rubber effectively, producing a weak and low arc that reliably misses the 6-foot minimum
- Setting up with feet misaligned on the rubber (straddling the side edge), which invites illegal-position questions from plate umpires
- Drifting forward over multiple pitches until the toe is ahead of the rubber, shortening the effective pitching distance illegally without noticing
In SwingVantage Motion Lab
SwingVantage can identify rubber-contact compliance issues by tracking foot position relative to the rubber plate through the release frame in uploaded pitch video.
Related terms
- Lemparan SahLegal delivery dalam slow-pitch softball adalah pitch yang dilepaskan underhand dengan gerakan mulus dan berkelanjutan serta tiba dalam ketinggian arc yang dibutuhkan — biasanya antara 6 dan 12 kaki — di atas plate.
- Jarak Lempar PitcherPitching distance adalah jarak terukur dari pitching rubber ke home plate. Dalam slow-pitch softball ini umumnya 50 kaki; sebagian divisi youth menggunakan 46 kaki, dan USSSA juga mengizinkan pitcher release dari hingga 6 kaki di belakang pitcher's plate.
- Lemparan Tidak SahIllegal pitch adalah delivery apa pun yang melanggar aturan — paling umum pitch di luar jendela arc legal, bola yang dilempar dengan spin, atau release dari posisi ilegal.
Related guides & benchmarks
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See a sample Slow-Pitch Softball report first