Table 1.
TSAP Components in water polo * [40].
| GAINING POSSESSION OF THE BALL | |
| Receiving the ball (RB) |
A player receives the ball from a teammate without losing control of it. |
| Conquering the ball (CB) |
A player is considered to have conquered a ball if he or she intercepts it, steals it from an opponent or recaptures it after an unsuccessful shot on goal or after a near-loss to the other team. |
| DISPOSING OF THE BALL | |
| Playing a neutral ball (NB) |
A routine pass to a teammate or any pass which does not truly put the opponent team in jeopardy is considered a neutral ball. |
| Losing the ball (LB) |
A player is considered as having lost the ball when he or she loses it to the other team without having scored a goal (i.e., shot: a missing shot; passage: a passage intercepted by an opponent or a failed passage; lost ball: a ball stolen by an opponent; contrafoul: a foul committed while holding the ball). |
| Playing an offensive ball (OB) | An offensive ball is a pass to a teammate which puts pressure on the other team and, most often, leads to a shot toward the goal (i.e., assist/offensive passage: a passage executed before a shot; center Ball: a passage toward the center forward) or a gained exclusion (i.e., while holding the ball, gaining a power play situation through an exclusion foul committed by an opponent). |
| Executing a successful shot (SS) | A shot is considered successful when it scores, or the possession of the ball is retained by one’s team (Goal and Shots) |
| PERFORMANCE INDICATORS | |
| Volume of play (VP) |
The volume of play represents the number of times the player has gained possession of the ball, as calculated using the formula: VP: RB + CB |
| Efficiency index (EI) |
The efficiency index indicates the players’ efficiency in ball possession according to their disposing of the ball, as calculated using the formula: EI: (OB + SS)/(10 + LB) |
| Performance score (PS) |
The performance score indicates the players’ ratio between the number of times players gain the possession of the ball and their efficiency in disposing of it, as calculated using the formula: PS: (VP/2) + (EI*10) |
* Adapted from Grehaigne et al. [23].