- for (let i = 0; i < teams.length; i++) {
- teams[i].h2h_gd = 0;
- teams[i].h2h_goals = 0;
- }
- for (let i = 0; i < games.length; ++i) {
- let idx1 = teams_to_idx[games[i].name1];
- let idx2 = teams_to_idx[games[i].name2];
- if (idx1 !== undefined && idx2 !== undefined &&
- !isNaN(games[i].score1) && !isNaN(games[i].score2)) {
- teams[idx1].h2h_gd += games[i].score1;
- teams[idx1].h2h_gd -= games[i].score2;
- teams[idx2].h2h_gd += games[i].score2;
- teams[idx2].h2h_gd -= games[i].score1;
-
- teams[idx1].h2h_goals += games[i].score1;
- teams[idx2].h2h_goals += games[i].score2;
+ if (num_relevant_games >= teams.length * (teams.length - 1) / 2) {
+ for (let i = 0; i < teams.length; i++) {
+ teams[i].h2h_gd = 0;
+ teams[i].h2h_goals = 0;
+ }
+ for (let i = 0; i < games.length; ++i) {
+ let idx1 = teams_to_idx[games[i].name1];
+ let idx2 = teams_to_idx[games[i].name2];
+ if (idx1 !== undefined && idx2 !== undefined &&
+ !isNaN(games[i].score1) && !isNaN(games[i].score2)) {
+ teams[idx1].h2h_gd += games[i].score1;
+ teams[idx1].h2h_gd -= games[i].score2;
+ teams[idx2].h2h_gd += games[i].score2;
+ teams[idx2].h2h_gd -= games[i].score1;
+
+ teams[idx1].h2h_goals += games[i].score1;
+ teams[idx2].h2h_goals += games[i].score2;
+ }
+ }
+ let h2h_gd_parts = partition(teams, function(a, b) { return b.h2h_gd - a.h2h_gd });
+ if (h2h_gd_parts.length > 1) {
+ tiebreakers.push(explain_tiebreaker(h2h_gd_parts, 'head-to-head goal difference'));
+ return subrank_partitions(games, h2h_gd_parts, start_rank, tiebreakers);