Anthro Measurements

The anthro_measurements section in the markings response contains estimated body measurements for players, sampled from game tracking data. There is an object for each player who appeared in each game.

Overview

Player measurements are estimated by randomly sampling frames during the game and averaging the distances between joints.

NOTE

The data itself is reasonably inexact and is missing some key data points for matching up to normal measurements. That is, we estimate height here, but the highest point on a player’s head that we have joint data for is the eyes, so we have to estimate the distance between the eyes and the top of the head. Similarly, we estimate wingspan, but we don’t know where the tips of the middle fingers are, so we have to guess at the extra distance to add. We have noticed average errors of around 1-2 inches from listed heights and wingspans given these issues.

Sample Response

json

{
  "markings": {
    "anthro_measurements": [
      {
        "frames_sampled_for_measurement": 369,
        "game_id_nba": "0022500404",
        "height_inches": 78.7,
        "left_arm_length_inches": 35.9,
        "left_leg_length_inches": 40.7,
        "mid_hip_to_neck_length_inches": 24.8,
        "nba_game_id": "0022500404",
        "nba_player_id": 202691,
        "player_id_nba": 202691,
        "right_arm_length_inches": 35.8,
        "right_leg_length_inches": 40.4,
        "wingspan_inches": 86.4
      }
    ]
  }
}

Fields

Identifiers

`game_id_nba`

Type: string

NBA game ID

`nba_game_id` deprecated

Type: string

NBA game ID

Deprecated

Use game_id_nba instead. This field will be removed in a future version.

`player_id_nba`

Type: integer

NBA player ID

`nba_player_id` deprecated

Type: integer

NBA player ID

Deprecated

Use player_id_nba instead. This field will be removed in a future version.

`frames_sampled_for_measurement`

Type: integer

Number of frames sampled to calculate these measurements