Amanda Knapp
VORP, or Value Over Replacement Player, is an advanced statistic used in the NBA to determine a player's impact over time. It is calculated by estimating the points per 100 team possessions that a player scores over a replacement-level player, translated to an average team over a full NBA season. VORP is an accumulative stat, so a player's VORP increases the more seasons they play. While it is a useful metric, it does not account for the intangible skills a player may possess.
| Characteristics | Values |
|---|---|
| Full Form | Value Over Replacement Player |
| Used in | NBA |
| Used since | 1973-1974 season |
| Calculation | Box-score estimate of points per 100 team possessions that a player scores over a replacement player translated to the average team over a full NBA season |
| Calculation (detailed) | Player's Box Plus Minus value minus the Box Plus Minus value of a replacement player |
| Calculation (formula) | VORP = BPM – Replacement Player's BPM |
| Reference value | 0 |
| Positive VORP | Greater than 0 |
| Negative VORP | Less than 0 |
| Accumulative stat | Yes |
| Players with leading VORP scores | LeBron James (146.57), Michael Jordan (116.05), Nikola Jokic (52.82), Chris Paul (96.15), Kevin Durant (80.31), James Harden (76.01) |
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What You'll Learn
VORP stands for Value Over Replacement Player
VORP is an acronym for "Value Over Replacement Player", an advanced statistic used in the NBA to analyse a player's impact over time. It is a cumulative stat, so a player's VORP score increases the more seasons they play.
VORP calculates a box-score estimate of the points per 100 team possessions that a player scores over a replacement player, translated to the average team over a full NBA season. A replacement player is a bench or role player who theoretically costs the team points when they are on the floor. A team gets 100 possessions per game in the NBA, and a replacement player costs the team around two points (-2) if they play the entire game. VORP is a player's value over the replacement player's (-2).
VORP is a season stat, not a game stat, so a player's VORP score increases the more games they play. It has been used in the NBA since the 1973-1974 season.
Some of the players with leading VORP scores include LeBron James, who is the all-time leader with a VORP of 146.57. Michael Jordan is second with 116.05, and Nikola Jokic is ranked 32nd with a VORP of 52.82 despite having only played eight seasons in the NBA. Other players with high VORP scores include Chris Paul (96.15), Kevin Durant (80.31), and James Harden (76.01).
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VORP is an advanced stat used in the NBA
VORP, or Value Over Replacement Player, is an advanced statistic used in the NBA to determine a player's impact over time. It has been used in the NBA since the 1973-1974 season. VORP calculates a box score estimate of the points per 100 team possessions that a player scores over a replacement player, translated to the average team over a full NBA season.
A replacement player is typically a bench or role player. When a replacement player is on the floor, they are costing the team points, around -2 points if they play the entire game. As the NBA averages 100 possessions per game, VORP calculates a player's value over the replacement player's -2. As VORP is a seasonal stat, the more games a player plays, the higher their VORP.
VORP is an important metric in the NBA as it helps to quantify a player's value and impact on their team. This can be useful when comparing players and determining awards, such as the NBA MVP, which is given to the most valuable player of the season. While the award is subjective, VORP provides an objective measure of a player's value based on their performance.
VORP can also be used to compare players across different seasons and eras. For example, LeBron James has the highest VORP score of all time at 146.57, which is higher than Michael Jordan's score of 116.05. This provides quantitative evidence of LeBron James's impact on the basketball court.
While VORP is a useful tool, it is important to consider other factors that may impact a player's value, such as intangible skills and the performance of their team. Additionally, VORP may not account for all aspects of a player's contribution, and other advanced statistics, such as Box Plus Minus (BPM), may provide additional insights into a player's performance.
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VORP calculates a player's value over a replacement player
VORP, or Value Over Replacement Player, is an advanced statistic used in the NBA to analyse a player's impact over time. It calculates a player's value over a replacement player, which is typically understood as a bench or role player. Theoretically, a replacement player costs the team points whenever they are on the floor, around -2 points if they play the entire game.
VORP is calculated by taking the average number of runs per out in a league and multiplying it by the player's total outs. This provides the number of runs an average player would have produced with that number of outs. This number is then multiplied by 0.8, or the percentage of the average the replacement level is set at, to get the number of runs a replacement player is expected to make. Subtracting the replacement player's expected runs from the player's actual runs gives us the VORP.
It is important to note that VORP is a season stat, not a game stat, so a player's VORP increases the more games they play. Additionally, VORP does not account for intangible skills a player may have, and critics argue that the formula's "replacement level" is arbitrary.
Despite these considerations, VORP provides a good estimate of a player's value and can be used to compare players' overall contributions to their teams. For example, LeBron James is the all-time leader in VORP with a score of 146.57, while Michael Jordan is second with a score of 116.05.
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VORP is a season stat, not a game stat
VORP, or Value Over Replacement Player, is a statistic used in the NBA to analyse a player's impact over a duration of time. It is an advanced stat that has been used since the 1973-1974 season. VORP calculates a box-score estimate of the points per 100 team possessions that a player scores over a replacement player, translated to the average team over a full NBA season.
The calculation for VORP takes into account the Box Plus Minus (BPM) values, which measure a player's impact on the court in terms of points differential over 100 possessions. The Offensive Box Plus Minus (OBPM) and Defensive Box Plus Minus (DBPM) refer specifically to the offensive and defensive phases, respectively. VORP uses these values to create a unique rating scale for the league, with the replacement player as the reference value.
By using VORP, analysts can compare a player's value over a replacement player. A VORP greater than 0 indicates a positive contribution, while a value less than 0 suggests the player is performing poorly. VORP provides a way to estimate a player's contribution relative to a replacement player, without needing to directly compare the numerical values of Box Plus Minus.
In summary, VORP is a valuable tool for assessing a player's impact over a season, taking into account various advanced metrics and providing a unique rating scale. While it is not a game stat, the accumulation of strong individual game performances will contribute to a higher VORP over a player's career.
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VORP is dependent on BPM values
VORP, or Value Over Replacement Player, is an advanced statistic in basketball that determines a player's impact over a duration of time. It is a cumulative stat, meaning that the more seasons a player plays, the higher their VORP gets. VORP calculates a box-score estimate of the points per 100 team possessions that a player scores over a replacement player, translated to the average team over a full NBA season.
BPM, or Box Plus/Minus, is a rate-based, team-adjusted metric of a player's contribution as measured by RAPM (Regularized Adjusted Plus-Minus). BPM is a bottom-up stat that uses linear regression to calculate a full 14 years' worth of RAPM data. BPM can be converted into a cumulative stat, resulting in VORP.
The formula for converting BPM to VORP is:
> VORP = [BPM - (-2.0)] * (% of possessions played) * (team games/82)
This formula yields the number of points the player is producing over a replacement player, per 100 team possessions over an entire season.
For example, in 2017, LeBron had a BPM of +7.6 and played 70% of Cleveland's minutes. His VORP would be calculated as follows:
> VORP = [7.6 – (-2.0)] * 0.70 * 82/82 = 6.7
While BPM and VORP are valuable tools for analyzing player performance, they may not capture all aspects of a player's contribution, especially for elite defenders whose box score statistics may not accurately reflect their impact. Additionally, certain players with very low or high assist or rebounding percentages may be affected by the interaction term in the VORP formula. Despite these limitations, VORP remains a widely used and reliable statistic for determining player value and impact in the NBA.
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