SP Means Sets Played—Here’s How to Read It

In volleyball player and team statistics, SP usually means sets played: the number of sets a player or team has participated in over the period covered by the statistics. It counts participation, not spikes or sets won. For example, the glossary on Air Force’s official volleyball statistics page labels SP as “Sets Played,” alongside MP for matches played and MS for matches started. Check the provider’s glossary if you are reading a different competition’s statistics.

On a single-match box score, SP counts sets in that match. On a season statistics page, it counts sets across the included matches. Check whether the table covers the whole season, conference matches only or another selection.

What counts as a set played?

For NCAA indoor volleyball statistics, entering a set earns participation credit; playing the entire set is not required. The 2026 NCAA Volleyball Statisticians’ Manual, Section 6 also specifies that front-row-only and back-row-only appearances count for all per-set statistical categories.

That means a substitute can earn one SP without recording a kill, assist, ace or dig. Leaving and returning during the same set does not make it two sets played.

Consider this hypothetical four-set match, won 3–1:

Team or player	Participation	SP for the match
Team	Played all four sets	4
Player A	Appeared in every set	4
Player B	Played sets 1 and 2, sat out set 3, entered late in set 4	3
Player C	Stayed on the bench throughout	0

Player B’s brief appearance in the fourth set counts just as one full-set appearance would. The team’s SP is 4, not 3: it played four sets even though it won only three.

Also, do not add individual players’ SP to find the team total. Several players receive participation credit for the same set.

Why SP matters for per-set averages

SP supplies the denominator for statistics such as kills per set, assists per set, aces per set and digs per set. The NCAA manual’s calculated categories divide each player’s relevant total by that player’s total sets played.

If Player B in the example records 12 kills across the three sets they played:

Kills per set = 12 ÷ 3 = 4.00

Dividing by the team’s four sets would give 3.00, but that would use the wrong denominator for the player’s average. For a team rate, use the team’s total kills and team SP.

SP still does not measure rallies played, minutes on court or attacking opportunities. Two players can both have 20 SP while playing very different amounts within those sets. Use per-set rates to put totals in context, then consider role and opportunities before treating the higher rate as better performance.

For the neighboring columns, see our guide to reading a volleyball box score.