Calculateur de Taux d'Efficacité au Volleyball
Calculez le taux d'efficacité d'attaque au volleyball.
Attack Efficiency
0.314
Attack Efficiency vs Kills
Formule
Volleyball Attack Efficiency
Attack efficiency is the single most important hitting statistic in volleyball, balancing kills against errors and total swings.
Formula
Efficiency = (Kills - Errors) / Total Attempts
The result ranges from -1.000 (all errors) to 1.000 (all kills). Zero means kills equal errors. In college and professional volleyball, an efficiency above .300 is excellent and above .400 is elite.
Exemple Résolu
A hitter records 15 kills, 4 errors, on 35 attempts.
- 01Efficiency = (15 - 4) / 35 = 11 / 35 = 0.314
- 02Kill percentage = 15 / 35 x 100 = 42.9%
- 03Error percentage = 4 / 35 x 100 = 11.4%
Questions Fréquentes
What is a good hitting efficiency?
In Division I volleyball: .300+ is excellent, .250-.300 is good, .200-.250 is average, below .200 needs improvement. A team hitting .250+ usually wins.
What counts as a kill vs an attempt?
A kill is an attack that directly results in a point. An attempt is any attack that is not a kill and not an error. Errors include hitting out, into the net, or being blocked for a point.
Why not just use kill percentage?
Kill percentage ignores errors. A hitter with 50% kills but 25% errors is far less effective than one with 40% kills and 5% errors. Efficiency captures both sides.
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