Rebound Percentage Calculator (Basketball Stats)
Calculate a player's rebound percentage from rebounds, minutes played, and team/opponent totals.
Reviewed by Sher, Sports Science & Nutrition Specialist
Formula
TRB% = 100 * (TRB * (Team MP / 5)) / (MP * (Team TRB + Opp TRB))
Where TRB is total rebounds, Team MP is total team minutes played, MP is player minutes played. The division by 5 accounts for five players sharing the court. Separate formulas exist for offensive and defensive rebound percentage using the respective rebound categories.
Worked Examples
Example 1: Starting Center Rebound Percentage
Problem:A center grabs 3 offensive and 8 defensive rebounds in 34 minutes. Team plays 240 minutes total with 11 ORB and 35 DRB. Opponent has 10 ORB and 33 DRB.
Solution:ORB% = 100 * (3 * (240/5)) / (34 * (11 + 33)) = 100 * 144 / 1496 = 9.6%\nDRB% = 100 * (8 * (240/5)) / (34 * (35 + 10)) = 100 * 384 / 1530 = 25.1%\nTRB% = 100 * (11 * (240/5)) / (34 * (46 + 43)) = 100 * 528 / 3026 = 17.4%
Result:ORB%: 9.6% | DRB%: 25.1% | TRB%: 17.4% - Above Average rebounder
Example 2: Guard Rebound Percentage
Problem:A guard grabs 1 offensive and 3 defensive rebounds in 30 minutes. Team: 240 min, 10 ORB, 34 DRB. Opponent: 9 ORB, 31 DRB.
Solution:ORB% = 100 * (1 * 48) / (30 * (10 + 31)) = 100 * 48 / 1230 = 3.9%\nDRB% = 100 * (3 * 48) / (30 * (34 + 9)) = 100 * 144 / 1290 = 11.2%\nTRB% = 100 * (4 * 48) / (30 * (44 + 40)) = 100 * 192 / 2520 = 7.6%
Result:ORB%: 3.9% | DRB%: 11.2% | TRB%: 7.6% - Average for a guard
Frequently Asked Questions
What is rebound percentage in basketball and why does it matter?
Rebound percentage (REB%) is an advanced basketball statistic that estimates the percentage of available rebounds a player grabs while on the court. Unlike raw rebound totals, which are heavily influenced by playing time and team pace, rebound percentage adjusts for these factors to provide a more accurate picture of rebounding ability. It answers the question: of all the rebounds that could have been grabbed while this player was on the floor, what share did they actually secure? This makes it possible to compare rebounders across different teams, eras, and playing time situations in a way that raw rebound counts simply cannot achieve.
How is total rebound percentage calculated?
Total rebound percentage is calculated using the formula: TRB% = 100 * (TRB * (Team MP / 5)) / (MP * (Team TRB + Opponent TRB)). The Team MP / 5 factor adjusts for the fact that five players share the court simultaneously for the team. Minutes played in the denominator normalizes for playing time, and the sum of team plus opponent rebounds represents all available rebounds during that game. This formula effectively estimates what percentage of all available rebounds the player secured while they were on the court, providing a pace-independent and minutes-independent measure of rebounding prowess.
What is the difference between offensive and defensive rebound percentage?
Offensive rebound percentage measures how effectively a player secures rebounds off their own team's missed shots, while defensive rebound percentage measures how effectively they secure rebounds off opponent missed shots. The formulas differ in the denominator: ORB% uses team offensive rebounds plus opponent defensive rebounds as the pool of available offensive boards, while DRB% uses team defensive rebounds plus opponent offensive rebounds. Defensive rebound percentages are typically higher because defensive rebounds are more common and easier to obtain due to positional advantage. An elite offensive rebounder might have 12-15% ORB% while an elite defensive rebounder could reach 30% or higher DRB%.
What are good benchmarks for rebound percentage in the NBA?
NBA rebound percentage benchmarks vary significantly by position. For total rebound percentage, elite centers like Andre Drummond and Dennis Rodman have posted season averages above 20%, while the average center sits around 13-15%. Power forwards typically range from 10-14%, small forwards from 6-9%, shooting guards from 4-7%, and point guards from 3-5%. For offensive rebound percentage specifically, anything above 10% is excellent regardless of position. Historically, Dennis Rodman holds several of the highest single-season TRB% marks, exceeding 23% in multiple seasons, which remains an almost untouchable benchmark in modern basketball analytics.
References
Reviewed by Sher, Sports Science & Nutrition Specialist · Editorial policy