Rebound Percentage Calculator (Basketball Stats)
Calculate a player's rebound percentage from rebounds, minutes played, and team/opponent totals.
Reviewed for accuracy by Sher, Sports Science & Nutrition Specialist
Rebound Percentage Calculator (Basketball Stats)
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Formula: TRB% = 100 * (TRB * (Team MP / 5)) / (MP * (Team TRB + Opp TRB))
Worked example — ORB%: 9.6% | DRB%: 25.1% | TRB%: 17.4% - Above Average rebounder
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% DRB% = 100 * (8 * (240/5)) / (34 * (35 + 10)) = 100 * 384 / 1530 = 25.1% TRB% = 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% DRB% = 100 * (3 * 48) / (30 * (34 + 9)) = 100 * 144 / 1290 = 11.2% TRB% = 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.
How does team composition affect individual rebound percentage?
Team composition has a significant impact on individual rebound percentage numbers, which analysts must account for when evaluating players. Playing alongside dominant rebounders typically decreases a player's rebound percentage because there are fewer available boards to secure. Conversely, playing on a team with smaller lineups or poor rebounders can inflate individual numbers. Pace also matters: faster-paced teams create more missed shots and thus more rebounding opportunities. Additionally, defensive scheme affects rebounding: teams that prioritize boxing out may funnel rebounds to specific players, artificially boosting their numbers while teammates sacrifice their own rebounding stats for the team strategy.
Can rebound percentage predict future NBA success for draft prospects?
Rebound percentage has proven to be a moderately reliable predictor of NBA success for big men entering the draft. Research by various analytics groups has shown that college players with high TRB% tend to translate their rebounding ability to the professional level more consistently than many other statistical categories. Players who posted 15% or higher TRB% in college often become at least serviceable NBA rebounders. However, the predictive value diminishes for guard prospects, where rebounding is less central to their role. Scouts combine rebound percentage with wingspan measurements, vertical leap data, and film analysis of boxing-out technique to build comprehensive rebounding projections for prospects.
How has the importance of rebounding changed in modern basketball analytics?
Modern basketball analytics has reshaped how teams value rebounding in several important ways. Defensive rebounding is now viewed as a team responsibility rather than an individual skill, with many teams encouraging guards to grab defensive boards to start fast breaks while big men run the floor. Offensive rebounding has become more debated, with some analytics suggesting that sending players back on defense rather than crashing the boards produces better outcomes due to transition defense concerns. However, offensive rebounds remain among the most efficient possessions in basketball, generating points at a higher rate than average. This tension between transition defense and second-chance points continues to drive strategic discussions across the league.
Why do some high-rebounding players have lower rebound percentages than expected?
Several factors can cause a disconnect between raw rebound totals and rebound percentage. Players on fast-paced teams accumulate more raw rebounds simply because more shots are missed per game, but their percentage may be average because teammates also grab more boards. Similarly, players logging heavy minutes will have higher raw totals but their per-opportunity rate may be unremarkable. Playing alongside poor rebounders inflates raw numbers without necessarily indicating elite ability. Conversely, a player averaging only 6 rebounds per game in 24 minutes on a slow-paced team alongside dominant rebounders might actually have a higher rebound percentage than someone averaging 10 rebounds in 36 minutes in a different context.
How do height and wingspan correlate with rebound percentage?
Height and wingspan show a strong positive correlation with rebound percentage, though the relationship is not perfectly linear. NBA data consistently shows that each additional inch of height corresponds to roughly 1-2 percentage points of TRB% improvement on average. Wingspan may be even more predictive than standing height, as longer arms provide a larger catching radius and enable players to reach rebounds over opponents. However, athleticism, timing, positioning, and effort can partially compensate for physical limitations. Players like Charles Barkley (listed at 6-foot-6) and Dennis Rodman demonstrated that elite rebounding instincts and relentless effort can produce historically great rebound percentages despite being undersized for their position.
What is the relationship between rebound percentage and winning in basketball?
Research into the relationship between rebounding and winning reveals nuanced findings that have evolved with modern analytics. Defensive rebound percentage correlates more strongly with winning than offensive rebound percentage, primarily because securing defensive boards ends opponent possessions and prevents second-chance points. Teams that rank in the top five in defensive rebound percentage historically win 55-60% of their games. However, the marginal value of improving from average to elite defensive rebounding is relatively small compared to improvements in shooting efficiency or turnover rate. Offensive rebounding shows a weaker correlation with winning partly because aggressive offensive rebounding can leave teams vulnerable in transition, creating a tradeoff that varies by team personnel and style.
References
Reviewed for accuracy by Sher, Sports Science & Nutrition Specialist · Editorial policy
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