Figure 5
From: Space evaluation in football games via field weighting based on tracking data
Typical example of field division into the following four spaces: (A) safe dense space (\( z_{1} > 0 \) and \( z_{2} < 2 \)), (B) safe sparse space (\( z_{1} > 0 \) and \( z_{2} > 2 \)), (C) risky sparse space (\( z_{1} < 0 \) and \( z_{2} > 2 \)), and (D) risky dense space (\( z_{1} < 0 \) and \( z_{2} < 2 \)). The players in the offense (i.e., ball-possession team) and defense teams are shown via blue leftward and red rightward triangles, respectively. The player on the right side near the halfway line has the ball. In order for this player to execute a shot from this location, the ball has to be sent to a space in front of the opponent’s goal; however, this space is risky because it corresponds to (C) or (D).
