Figure 3.

Proportion between dimensions of the fields/courts (A,B), considering two opposing teams (e.g., soccer 11 vs. 11 = 22 total). Panel (A) shows values related to the regular number of players on the field/court. Panel (B) shows the values using the maximal players involved in a game according to the regular rule for substitutes (see E in Table 1); * C-19 means the increased maximum substitutions allowed for soccer (from 3 to 5), due to postponing the calendar caused by the COVID-19 pandemic; ** S100% represents a hypothetical simulation if soccer could make unlimited substitutions (i.e., using total players available in a game (i.e., 23 each team)). So, 6400 m² (soccer area)/46 players (23 × 2 teams) = 139 m²/player. Panel (C) shows a ratio between total game time X number of matches (e.g., soccer 90 min × 62.5 matches/season [Table 3] = ~5625 min/season). Panel (D) presents the load time using the maximum substitutions allowed in each sport. Note that for soccer we added the C-19 * and S100% ** simulations to equate (like panel B explanation).