http://probasketballtalk.nbcsports.com/2015/07/10/nba-to-track-five-hustle-stats-at-2015-summer-league-in-las-vegas/

2-Point FG Contested (C2FGA) – Defensive players will be assigned a 2-point FG Contested if they make their presence felt by raising a hand to contest a shot inside the three-point line prior to the release of the ball without fouling or blocking the shot attempt. A 2-Point FG Contested will still be awarded even if the offensive player makes the shot, another player also contests the shot (leading to both players being assigned a 2-Point FG Contested), or the ball is never actually released from the shooter’s hands due to the contest (provided the offensive player demonstrated a clear intent to shoot as opposed to simply pump faking).

3-Point FG Contested (C3FGA) – The same rules of a 2-Point Field Goal Contested apply to a 3-Point Field Goal Contested, except the Field Goal Attempt must be outside the three-point line.

Deflection (DEFL) – A defensive player shall be assigned a deflection upon redirecting the intended flight of the basketball through intentional physical contact on any non-field goal attempt. A deflection is separate from a steal, and does not require either control of the basketball or a change in possession. A kick ball also results in the defending player being awarded a deflection.

Loose-Ball Recovered (LBR) – A player shall be assigned a Loose-Ball Recovered upon gaining sole possession of a live “50/50” ball not controlled by either team. A loose-ball recovery can occur after a deflection, a block, a field goal attempt, or any other situation in which players must exert effort to gain possession of a live ball not directly in their individually controlled area (i.e. the ball does not come directly towards them or the recovery is contested). A loose ball recovery that leads to a jump ball results in half a Loose-Ball Recovered for both players involved in the jump.

Charge (CHRG DR) – The defensive player shall be assigned a Charge Drawn if the offensive player dribbling the basketball charges into an opponent that has established a legal guarding position. This occurrence will be directly called by an official on the floor.