Calculations & Formulas

StatSetter uses standard volleyball formulas aligned with NCAA statistical conventions. Here’s how every calculated metric works.

Hitting Percentage

The most important metric in volleyball.

Hitting % = (Kills - Errors) / Total Attacks

Range	Rating
.400+	Elite
.300–.399	Excellent
.200–.299	Good
.100–.199	Below average
Below .100	Poor
Negative	More errors than kills

Note

Zero attacks (kept-in-play balls) count toward Total Attacks but don’t affect the numerator. A player who goes 3 kills, 1 error, 6 zero attacks has a hitting % of (3-1)/10 = .200

Points

Points measure a player’s total direct scoring contribution.

Points = Kills + Aces + Block Solos + (0.5 × Block Assists)

Block Assists count as half a point because two players share credit for the block.

Per-Set Averages

All counting stats can be viewed as per-set averages in the Stats Explorer:

Kills per Set = Total Kills / Total Sets Played
Aces per Set = Total Aces / Total Sets Played
Digs per Set = Total Digs / Total Sets Played

This normalizes stats across players who may have played different numbers of sets.

Core Counting Stats

These are raw counts, not calculated:

Stat	What’s Counted
Kills	Attack outcomes marked “Kill”
Attack Errors	Attack outcomes marked “Error”
Total Attacks	All attack outcomes (Kill + Error + Zero)
Aces	Serve outcomes marked “Ace”
Serve Errors	Serve outcomes marked “Error”
Total Serves	All serve outcomes (Ace + Error + Zero)
Assists	Set outcomes marked “Assist”
Digs	Dig outcomes marked “Dig”
Block Solos	Block outcomes marked “Solo”
Block Assists	Block outcomes marked “Assist”
Total Blocks	Block Solos + Block Assists
Receives	Receive outcomes marked “Receive”
Receive Errors	Receive outcomes marked “Error”

Team Statistics

Team stats are the sum of all individual player stats:

• Team Kills = Sum of all player kills
• Team Hitting % = (Team Kills - Team Attack Errors) / Team Total Attacks
• Team Aces = Sum of all player aces
• Team Blocks = Sum of all player block solos + block assists

Set Scoring

Sets use standard volleyball scoring rules:

Match Format	Regular Sets	Deciding Set
Best of 3	Play to 25 (win by 2)	Set 3: Play to 15 (win by 2)
Best of 5	Play to 25 (win by 2)	Set 5: Play to 15 (win by 2)
Best of 1	Play to 25 (win by 2)	—
2-Set RR	Play to 25 (win by 2)	—

StatSetter automatically applies the 15-point threshold for deciding sets based on your match format.

Success Classification

For each stat category, StatSetter determines whether the play was a success, error, or neutral touch:

Category	Success	Error	Neutral
Attack	Kill	Error	Zero
Serve	Ace	Error	Zero
Receive	Receive	Error	Zero
Set	Assist	Error	Zero
Dig	Dig	Error	—
Block	Solo, Assist	Error	—

This classification drives the color coding in the event timeline (green for success, red for error, gray for neutral) and powers the success rate metrics in rotation analysis.