Volleyball players and coaches look at statistics to monitor progress of the team or individual players. Looking at team service percentages as well as individual player percentages helps coaches evaluate what is working, who the key players are and where more practice is needed. There is more that one statistic involved in determining a serve percentage. Charting the volleyball sets helps gather the information that is later compiled to create the statistics coaches want and need.
Step 1
Chart the volleyball game service statistics. A good chart lists each player by name and number, and records the number of service attempts, aces, errors and zero serves were made by each player. Aces are in-bound serves not returned by opponents, errors are not in-bounds and zero serves are in play after the serve.
Step 2
Choose the statistic you want to compute. Assume you are tracking Jane's service progress. She has 12 service attempts with four aces, one error and the rest are zero serves.
Step 3
Calculate the ace percentage: (Aces - Errors) / Total Attempts. Jane has a 25 percent ace percentage, also called ace efficiency.
Step 4
Calculate Jane's serving percentage: (Total Attempts - Service Efficiency) / Total Attempts. Fill in the variables: (12 - 0.25) / 12 = 97.9 percent. You can rely on Jane to get the ball in play at least 9 out of 10 times.
Things You'll Need
- Paper
- Pencil
- Calculator
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