Supplementary Table S1. Distribution of observations across playing positions and game density conditions. Position High density Medium density Low density Total observations CB 5 16 23 44 FB 19 25 40 84 W 16 27 39 82 CM 19 25 42 86 ST 8 14 22 44 Total 67 107 166 340 Values represent repeated player observations collected across multiple training sessions during the competitive season. The dataset included 7 high-density sessions, 8 medium-density sessions, and 13 low-density sessions. CB = central back; FB = full back; W = wide midfielder; CM = centre midfielder; ST = striker.