Table 2b.

Summary of performance analysis studies in padel.

Nº	Study	Sample	Variables	Main result
6	Courel-Ibáñez et al. (2019)	1963 hits of 4 WPT male professional players	- Type of stroke: indirect or direct - Stroke height: lob or straight - Distance from the net - Side of the court - Effectiveness - Winning stroke, error and continuity	Forehand strokes stand out over backhand strokes. Lobs account for less than 2 out of 10 groundstrokes. Baseline predominates (46.6%), followed by middle (27.7%) and net (25.6%). Lateral side is used similarly between left and right (30.5% and 32.1%), lower proportion with respect to the center (37.4%). The use of the lateral corners in the back court is 33% of the game. The use of the center in the attacking zone is 25%. The game in the middle is characterized by the use of the volley, bandeja and smash. The position at the net is characterized by the use of the volley. The use of the lob is 16% throughout the match.
7	Sánchez-Alcaraz et al. (2020a)	2054 strokes from 4 men's finals WPT 2017	- Forehand volley - Backhand volley - Smash - Bandeja	The winning pair performs a greater number of attacking actions than the losing pair (327 vs. 186) and attacking actions per point. The volley is the most used, followed by the bandeja and the smash. The smash is used 5% more by winners. Losers fail to achieve an attacking action in 47% of the points.
8	Sánchez-Alcaraz et al. (2020b)	668 serves and 600 serve-returns of 14 matches (7 male and 7 female) in WPT category 32 players, 16 men (age: 31.18 ± 7.27 years; body height: 181.3 ± 4.1 cm)	- Serve: the number, the side of the court, the direction of the serve and effectiveness - Serve-return: the side of the court, the direction of the serve-return, height, the type of stroke and effectiveness - Point: winners the servers or winners the receivers - Number of strokes in the point	Male players win more first serves and points on the serve. The percentage of points won is higher the fewer the number of strokes in the point. The advantage on the serve is lost after the twelfth hit in men, and seventh hit in women. More than 60% of the serves are to the side wall. From the left side, 12% more serves are to the side wall than the right side. From the right side there are 14% more serves to the “T”. 60% of the serve-return are straight shots. 90% of the returns are effective. Players on the left side serve 15% down the line more than players on the right side. Left side players execute more than 75% of their serve-return with a backhand shot. Girls use more backhand or cross court directions and the lob.
9	Sánchez-Alcaraz et al. (2020c)	24 matches (12 with advantage and 12 with golden point), 523 games (241 advantage and 282 golden point), 12 quarterfinals, 8 semi-finals and 4 WPT finals	- Tournament and round - Gender - Set, number, duration and result - Number of break balls and break made	With golden points, the set duration is shorter, the number of games increases, more breaks are made, there is a higher percentage of matched sets and 3-set matches. There is no gender difference between the match time and score. There are more break balls and the number of breaks in girls. From the semi-finals the number of games increases and the duration of the set is longer.
10	Sánchez-Alcaraz et al. (2020d)	1015 auctions of 8 WPT finals (4 men's and 4 women's), 20 players (10 men and 10 women)	- Type of smash - Effectiveness: winning stroke, error and continuity - Hitting zone: side of the court and distance from the net - Direction of the stroke: down the line or cross court	Bandeja is the most used shot, more in women (68.8%) than in men (55.7%). Men use the flat smash (26.6%) and the topspin (9.8%) more than women (17% and 4.9%, respectively). The off the wall smash is made more by women (9.3%) than men (7.9%). The predominant direction is down the line (52.9% in women and 59.4% in men). The middle area is the area where more strokes are made, exceeding 50% in both men and women. The off the wall smash is the shot with which most errors are made. The flat smash and the topspin offer more winners. The off the wall smash and the bandeja offer more continuity.