Table 1.
Percentage (%) of performance improvement between the competitive seasons.
Event
15/16 – 16/17
16/17 – 17/18
17/18 – 18/19
18/19 – 19/20
Overall variation (%)
15/16 – 19/20
Freestyle
50-m
0.98 ± 1.61
0.16 ± 1.59
0.90 ± 1.66
-1.94 ± 1.82
0.09 ± 2.28
100-m
1.02 ± 1.58
0.16 ± 1.22
0.79 ± 1.23
-2.06 ± 1.95
0.02 ± 2.58
200-m
1.33 ± 2.20
0.73 ± 2.99
0.57 ± 2.27
-1.57 ± 2.09
1.10 ± 3.50
400-m
0.91 ± 2.19
1.20 ± 2.58
1.37 ± 4.27
-2.06 ± 3.42
1.55 ± 4.91
800-m
1.28 ± 2.43
1.46 ± 2.15
0.85 ± 1.38
-1.02 ± 1.69
2.67 ± 4.20
1500-m
1.21 ± 2.27
0.77 ± 1.56
0.66 ± 1.28
-1.11 ± 1.64
1.66 ± 3.44
Backstroke
100-m
0.93 ± 2.43
1.18 ± 1.87
0.79 ± 1.39
-0.90 ± 1.76
2.00 ± 3.74
200-m
1.25 ± 2.24
0.86 ± 1.63
0.56 ± 1.25
-1.62 ± 2.06
1.39 ± 4.39
Butterfly
100-m
2.03 ± 3.65
0.44 ± 1.84
0.98 ± 1.83
-1.36 ± 1.90
2.05 ± 4.88
200-m
1.40 ± 2.09
0.75 ± 1.93
0.53 ± 1.26
-2.03 ± 2.21
0.73 ± 3.99
Breaststroke
100-m
0.82 ± 1.93
0.85 ± 1.80
0.40 ± 1.42
-1.13 ± 1.57
0.89 ± 2.60
200-m
0.68 ± 1.74
0.55 ± 1.38
0.61 ± 1.09
-1.99 ± 1.94
-0.09 ± 2.97