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Beginner

Velocidade do Arremesso

Definition

Velocidade do arremesso no softbol slow-pitch é a rapidez com que a bola viaja da arremessadora até o plate, normalmente 40 a 56 km/h. Muitas ligas impõem um limite máximo de velocidade para manter o caráter recreativo do jogo.

Como o slow-pitch é desenhado para participação recreativa, limites máximos de velocidade (muitas vezes 56 km/h no plate ou saindo da mão da arremessadora) impedem que arremessadoras experientes dominem ligas casuais. Dentro da janela legal de velocidade, arremessadoras ainda variam o ritmo para atrapalhar o timing — um arremesso de 40 km/h depois de um arremesso de 53 km/h muda o ângulo de descida e o tempo de chegada. Rebatedoras que pensam só no arco e não na velocidade chegam atrasadas ou se lançam para a frente numa oferta mais lenta.

Beginner tip

Throw your first few pitches at 60-70% effort to build arc consistency before experimenting with speed variation — consistency always beats velocity in slow pitch.

Advanced note

Develop two distinct release tempos. This means one at full speed and one 15-20% slower. This means that look identical until the ball leaves your hand. This keeps experienced hitters from reading speed tells early.

Example

Uma arremessadora lança a 45 km/h, depois baixa uma a 35 km/h com o mesmo movimento de braço; a rebatedora se lança para a frente e a eleva.

How it shows up on video

Compare the ball's travel distance in equal time intervals at the start and end of its flight. This means significant deceleration beyond 40% of initial speed suggests a very low-speed pitch. Watch how early the batter begins their stride trigger relative to release, as lunging forward indicates the hitter was fooled by a speed change. A radar gun reading at plate level is the most reliable confirmation of league compliance.

Common mistakes

  • Exceeding the league maximum speed limit with an aggressive delivery, risking ejection and illegal-pitch calls that hand the offense free bases
  • Using identical pitch speed on every batter, making timing trivially predictable after the first plate appearance of any given at-bat
  • Batters ignoring pitch speed variation and timing only to the arc peak, causing them to be reliably late or early on speed changes
  • Not checking league-specific speed rules before a tournament, since maximum speeds vary across associations and division levels

In SwingVantage Motion Lab

SwingVantage estimates pitch speed from frame rate and distance calibration in uploaded video, flagging speeds that approach or exceed the league maximum for pitcher review.

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