Volleyball Stat Glossary

An ace is a serve that wins the rally immediately for the serving team. That usually happens when the ball drops inbounds without a touch, when the receiver is out of position and cannot make a legal contact, or when the first touch goes straight to the floor or into the net. Aces change momentum because they both score and force passers and setters to respect your serve on the next attempt.

You may see aces labeled ACE or, in casual sheets, A. In most modern systems the service ace is written SA so it does not collide with A for assists. When you read a box score, check the key: if A is used for aces, assists may appear as AST instead. Tracking aces alongside service errors shows whether aggressive serving is paying off or costing sideouts.

In SoloStats serve tracking, each serve attempt is logged and then coded by outcome, so an ace is recorded as a point-producing serve on that specific attempt. That per-attempt logging helps coaches evaluate not just total aces, but serve pressure and consistency across rotations.

A kill is an attack that ends the rally with a point for the attacking team. Classic examples include a hard-driven ball that lands inside the lines, a well-placed shot the defense cannot reach, or a ball that is ruled down on the opponent after a legal attack. The official shorthand is K. Kill volume (total K) tells you how often a hitter terminates rallies; when you pair kills with errors and attempts you get a much clearer picture of whether those swings were efficient.

Middle blockers, pins, and back-row attackers all earn kills, but their roles create different expectations for volume and risk. Comparing two outsides only on kill count ignores how many attempts and errors each needed to get there. For a deeper breakdown of when an attack counts as a kill, see what is a kill in volleyball.

An assist credits the player whose pass or set directly leads to a teammate's kill. In practice the setter earns most assists because they deliver the ball hitters attack for points. The usual abbreviation is A; some stat crews use AST when the letter A is already reserved for another category on a handwritten sheet.

This is different from an ace: an assist follows a teammate's successful attack, while an ace is a direct point from the serve. If you see A in a column header, read the program's legend before assuming ace versus assist—many digital trackers label service aces as SA so A stays aligned with assists. Assists per set remain one of the best quick views of how productively a setter turns passes into kills.

A dig is a defensive play that keeps the ball in play after an opponent's attack. The passer controls a hard-driven or well-placed ball so the team can set and swing again instead of losing the rally. Abbreviations include D or DIG. Digs are not awarded for easy free balls the way they are for attacks that would likely be kills without the defensive effort.

Liberos and defensive specialists usually lead dig totals because they take the largest share of serve receive and perimeter defense, but any position can log digs when they make a quality first contact on an attack. Digs per set (often D/SP) compare defenders fairly when playing time differs. Pair dig rate with opponent hitting percentage to see whether back-row pressure is actually forcing errors and out-of-system sets.

Hitting percentage (often PCT or HIT%) measures how efficiently a hitter scores while accounting for mistakes. The standard formula is (Kills − Errors) ÷ Total Attempts. Only attack attempts that count toward kills and errors belong in the denominator per your league or software rules; most club and high school apps match the same idea as NCAA-style attack charts.

Worked example: 10 kills, 2 errors, and 20 total attempts gives (10 − 2) ÷ 20 = 8 ÷ 20 = .400. A negative value means more errors than kills across those attempts—usually a sign to adjust shot selection or tempo. Use the calculator below to plug in your own numbers, or read the full walkthrough on how to calculate volleyball hitting percentage.

A block is a defensive play at the net where one or more front-row players reach over (legally) to deflect or stop an attack. When the block alone scores the point—commonly a ball stuffed straight down or deflected out of play off the attacker—statisticians credit block points using solos and assists.

BS means block solo: one player's block wins the point without a teammate sharing the touch. BA means block assist: two (sometimes more) players are both significant on a block that scores. Many summaries add BS + BA for total block contributions. Block errors (often BE) cover illegal contacts or net violations that give the opponent a point, so net front performance is about both stuffs and disciplined hands.

TA stands for total attempts on attack—the complete count of swings that enter the official attack tally for a player or team. It includes kills, attack errors, and balls kept in play that do not end the rally as a kill or error. You may also see this labeled ATT or Att; different apps pick one convention, but the meaning is the same.

Total attempts matter because they are the denominator in hitting percentage: (K − E) ÷ TA. A hitter with big kill numbers but an enormous attempt load might still be less efficient than a teammate with fewer kills and far fewer errors. TA also helps coaches see usage—who is actually getting set in clutch rotations versus who finishes sets with low attempt counts despite being on the floor.

SP means sets played. It records how many sets an athlete was on the court for, not how many sets the team won or how many matches were scheduled. If a player subs in halfway through set two and stays through set five, their SP for that match reflects the sets they actually participated in, which may be a fraction in some systems or a whole number in others depending on how your tracker rounds playing time.

Sets played is the standard way to normalize counting stats. Kills per set (K/SP), digs per set (D/SP), and aces per set (SA/SP) let you compare a libero who played every rotation with a substitute who only entered for serving runs. Without SP, season leaderboards skew toward players who simply play more sets. Whenever you share stats with parents or recruiters, include SP next to totals so the context stays honest.

Team-level reports sometimes show roster SP totals across tournaments; verify whether your software counts a partial set as one SP or prorates it. Consistency matters when you trend improvement month over month.