Enter Your Stats
Formula Used
- Total Blocks = Blocks Made (or Solo + 0.5 × Assist)
- Block Percentage = (Total Blocks ÷ Block Attempts) × 100
- Blocks per Set = Total Blocks ÷ Sets Played
- Blocks per Game = Total Blocks ÷ Games Played
- Blocks per Minute = Total Blocks ÷ Minutes Played
- Blocks per 40 Minutes = Blocks per Minute × 40
- Blocks per 100 Opponent Attacks = (Total Blocks ÷ Opponent Attacks) × 100
How to Use This Calculator
- Choose your sport for clearer labels.
- Enter Total Blocks, or enable volleyball weighting.
- Add any denominators you track: attempts, sets, games, minutes, attacks.
- Press Calculate to view metrics instantly.
- Download CSV/PDF to share with coaches or analysts.
Example Data Table
| Match | Blocks | Attempts | Sets | Minutes | Block % | Blocks/Set |
|---|---|---|---|---|---|---|
| Week 1 | 11 | 38 | 5 | 96 | 28.95% | 2.20 |
| Week 2 | 7 | 41 | 4 | 82 | 17.07% | 1.75 |
| Week 3 | 9 | 44 | 5 | 101 | 20.45% | 1.80 |
What block rate measures
Block rate expresses how often a defender turns an opponent’s shot or attack into a recorded block. It is typically reported as blocks per defensive opportunity, blocks per attempt faced, or blocks per set/possession. Coaches use it to separate “volume” from “efficiency,” because two athletes can finish with the same block total while facing very different workloads.
Core inputs and practical definitions
This calculator lets you enter total blocks, opponent attempts faced, minutes played, and optional context such as games or sets. For volleyball, attempts faced can be opponent attacks against your front-row rotations. For basketball, it can be opponent field-goal attempts defended in the paint, or simply minutes for a per‑36 view. Choose the denominator that matches how your staff records opportunities.
Formula and example interpretation
The basic efficiency form is Block Rate (%) = (Blocks ÷ Attempts Faced) × 100. A player with 9 blocks on 120 attempts has a 7.50% block rate. Per‑time views are also useful: Blocks per 10 minutes = Blocks ÷ Minutes × 10. Reporting both helps explain whether a change comes from better timing and positioning, or from greater exposure to high‑risk actions.
Using the results for scouting and training
Compare block rate by role and matchup. Middle blockers and rim protectors should lead efficiency, but rotations, opponent quality, and scheme strongly affect outcomes. Track block rate alongside foul rate, deflections, and shots altered to avoid rewarding reckless contests. If rate drops while attempts rise, it may signal fatigue or late reads; if rate rises with steady attempts, it often reflects improved footwork, hand position, and anticipation.
Data quality checks and season reporting
Keep definitions consistent across games. Count only credited blocks, and ensure “attempts faced” excludes plays where the athlete could not reasonably contest. Small samples can swing wildly, so include confidence notes for early-season reports. Use the CSV/PDF exports to share weekly snapshots, and add rolling windows (last 5 games, last 10 sets) to reveal whether performance is stable or trending. When comparing leagues, normalize by pace or rally length, and document any rule differences that affect block credit, such as team blocks or touch blocks, so stakeholders interpret figures correctly.
FAQs
1) What is a good block rate?
It depends on sport, role, and how “attempts faced” is defined. Compare within the same league and position group, and evaluate multi-game averages rather than single-match spikes.
2) Should I use attempts faced or minutes as the denominator?
Use attempts faced for true contest efficiency. Use minutes for workload-normalized comparisons when opportunity tracking is inconsistent. Many teams publish both for clearer context.
3) Do partial or assisted blocks count?
Follow your stat provider’s rules. If team blocks or touch blocks are credited, keep the definition consistent all season so trends reflect performance, not bookkeeping changes.
4) Why does my block rate change so much week to week?
Blocks are high-variance events. Opponent style, pace, and matchup quality can swing opportunities. Use rolling windows and include attempts faced to separate variance from true improvement.
5) How can I improve block rate without increasing fouls?
Prioritize timing, footwork, and disciplined hand placement. Track block rate alongside foul rate and shots altered. The goal is efficient contests, not chasing every highlight.
6) Can I export results for reporting?
Yes. Use CSV for analysis and dashboards, and PDF for sharing with staff or athletes. Exporting preserves the inputs, chosen denominator, and the computed rates for auditability.