Data-Driven: Using Volleyball Stats to Drive Success

Stats are a great way to discover insights you might have previously missed about your team. Here are the most important numbers to keep an eye on.

Data-Driven: Using Volleyball Stats to Drive Success

Stats are a great way to discover insights you might have previously missed about your team. Here are the most important numbers to keep an eye on.

Data is becoming an increasingly important part of coaching volleyball. Coaches comb through hundreds of stats after each match, trying to find any new insight to improve the team.

Most successful volleyball teams usually excel in two key areas - limiting their number of unforced errors, and winning the serve-and-pass battle. Here are a few stats to keep an eye on to ensure you’re achieving these goals.

Hitting Percentage

Kills are one of volleyball glamour stats, a number fans and players love to monitor. But hitting percentage is the more impactful number they should be monitoring, as it is more telling of their overall efficiency.

Hitting percentage is calculated by totaling kills, subtracting the hitting errors, then dividing that number by the total number of attempts.

What makes this stat so important? Many times, the smartest play is hitting a controlled shot instead of swinging for a kill. Picture an out-of-system play with the set being low and off the net. If your team emphasizes kills over hitting percentage, players feel they need to swing for a kill rather than keep the ball in play and trust their defense. This can result in unforced errors and free points for the other team.

Each position should have a different hitting percentage goal based on the quality of sets they’re getting. Here are some marks to shoot for:

  • Outside/Opposite Goal: .250
  • Middle Blockers Goal: .450
  • Team Goal: .300

Serving Percentage

Serving percentage measures your team’s ability to serve the ball in play. This is calculated by taking the number of serves in play, subtracting the serving errors, and dividing by total attempted serves. This is a great stat for developing teams to get a handle on.

An optimal target for a high school team should be a serving percentage above 90 percent with a serving number below two.

Winning the serve-pass game is a recipe for victory. Passing is one of the most critical skills for success, because it dictates your team’s ability to run a successful offensive. Serving is also a critical part of momentum and overall point scoring. It is key to understand how the two skills are connected. Pass-quality and serve-quality help you better assess how well your players perform in these skills overall. Although there are a few iterations of passing scales, the passing score will always dictate the serving score. In the examples below, you’ll notice the rating given for a single serve and the result pass add up to a total of four points.

Pass Quality Rating

Pass quality rating assesses how well an individual player passes a serve. For most club and high school teams, this statistic rates each pass on a scale of 0-3, determining the quality of the pass based on the number of front row offensive opportunities available to the setter (i.e. perfect pass, all hitters are available). Both the location and height of the pass are taken into account.

  • 0 points = Service Reception Error
  • 1 point = Poor pass or overpass
  • 2 points = Good pass
  • 3 points = Perfect pass

To improve your team’s passing number, it’s important to emphasize two things - eliminate service reception errors and focus on incremental improvements. Your passing number will directly affect your team’s side-out percentage, hitting percentage and chances of winning.

Serve Quality Rating

Serve quality rating measures the quality of each serve based on the result of the opponent’s pass. The lower the number, the better. The rating scale goes from 0-4 points and looks like this:

  • 0 pts = Service error
  • 1 pt = Opponent perfect pass
  • 2 pts = Opponent good pass
  • 3 pts = Opponent poor pass or overpass
  • 4 pts = Service ace

Elite teams should focus on serve quality rating and aim to get their opponent out of system. The quality of an opposing team’s passes often directly results in their ability to side-out. Limiting their hitting options by forcing one and two-point passes allows your blockers to focus on fewer attack options which will improve your defense and your chances of winning more points.

As a coach, your challenge is to figure out a winning formula for your team. This is just a taste of all the stats volleyball coaches can keep an eye on. Incorporating these statistics into your review process can give you a more objective view of performance and help your players and team improve.

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