| season | 
numeric | 
4 digit number indicating to which season(s) the
specified timeframe belongs to. | 
| season_type | 
character | 
REG or POST indicating if the game belongs to regular
or post season. | 
| game_week | 
numeric | 
Season week | 
| team_abb | 
character | 
Abbreviation of Team of Player | 
| player_id | 
numeric | 
ESPN Player ID | 
| name_short | 
character | 
Short name of player (First Initial, Last Name) | 
| rank | 
numeric | 
QBR Rank in specified timeframe | 
| qbr_total | 
numeric | 
Adjusted Total QBR, which adjusts quarterback play on
0-100 scale adjusted for strength of opposing defenses played. | 
| pts_added | 
numeric | 
Number of points contributed by a quarterback above the
average level QB | 
| qb_plays | 
numeric | 
Total dropbacks for the quarterback (excludes
handoffs) | 
| epa_total | 
numeric | 
Total Expected Points Added by quarterback, calculated
by ESPN Win Probability Model | 
| pass | 
numeric | 
Expected Points Added on pass plays | 
| run | 
numeric | 
Expected Points Added on run plays | 
| exp_sack | 
numeric | 
Expected EPA Added on Sacks | 
| penalty | 
numeric | 
Expected Points Added on penalties | 
| qbr_raw | 
numeric | 
Raw total QBR, does not adjust for strength of opposing
defenses played. | 
| sack | 
numeric | 
Expected Points Added on sacks | 
| name_first | 
character | 
First Name of Quarterback | 
| name_last | 
character | 
Last Name of Quarterback | 
| name_display | 
character | 
Full Name of Quarterback | 
| headshot_href | 
character | 
Link to ESPN Headshot of Player | 
| team | 
character | 
Full Team Name of Player | 
| qualified | 
character | 
True/False indicator of whether or not player meets
minimum play requirement |