Which leagues book most?
Yellow cards per match — a rough measure of how tightly a league is refereed.
Primeira Liga (Portugal) books more than anyone: 6,09 yellow cards a match.
| League | Bookings per match | Matches |
|---|---|---|
| 1. Primeira Liga Portugal | 6.09 | 304 |
| 2. Primera División Bolivia | 5.9 | 239 |
| 3. Divisi Utama Uruguay Uruguay | 5.81 | 119 |
| 4. Primera División Kosta Rika | 5.79 | 275 |
| 5. LigaPro Portugal | 5.75 | 306 |
| 6. Second League - Group 1 Rusia | 5.71 | 214 |
| 7. Venezuelan Primera División Venezuela | 5.7 | 291 |
| 8. Liga Nasional Sepak Bola Rusia Rusia | 5.56 | 375 |
| 9. Serie C - Girone C Italia | 5.51 | 374 |
| 10. First League Makedonia Utara | 5.49 | 196 |
| 11. Liga Pro Ekuador | 5.48 | 237 |
| 12. First League Bulgaria | 5.4 | 222 |
| 13. Liga Utama Malta Malta | 5.34 | 160 |
| 14. Second League Bulgaria | 5.34 | 332 |
| 15. Seri B Italia | 5.32 | 388 |
| 16. LaLiga Spanyol | 5.27 | 376 |
| 17. Primera División RFEF - Group 2 Spanyol | 5.25 | 377 |
| 18. First NL Kroasia | 5.23 | 235 |
| 19. Liga Utama Bosnia dan Herzegovina Bosnia dan Herzegovina | 5.21 | 193 |
| 20. Primera División Peru | 5.17 | 234 |
| 21. Liga de Expansión MX Meksiko | 5.11 | 308 |
| 22. Serie C - Girone A Italia | 5.11 | 431 |
| 23. 1. Division Siprus | 5.06 | 190 |
| 24. Categoría Primera A Kolombia | 5.05 | 404 |
| 25. Second League - Group 2 Rusia | 5.04 | 231 |
| 26. Challenger Pro League Belgia | 5.04 | 112 |
| 27. Segunda División Peru | 5.02 | 128 |
| 28. Liga Utama Ukraina Ukraina | 5.01 | 143 |
| 29. Challenge League Swiss | 5 | 179 |
| 30. Liga II Rumania | 4.99 | 255 |
| 31. Liga Tinggi Latvia Latvia | 4.99 | 115 |
| 32. Liga Super Swiss Swiss | 4.97 | 182 |
| 33. Liga Utama Rusia Rusia | 4.93 | 240 |
| 34. Second League - Group 3 Rusia | 4.93 | 259 |
| 35. Serie C - Girone B Italia | 4.9 | 344 |
| 36. Segunda División Spanyol | 4.86 | 457 |
| 37. Persha Liga Ukraina | 4.84 | 147 |
| 38. Primera División RFEF - Group 1 Spanyol | 4.84 | 361 |
| 39. Serie B Brasil | 4.83 | 376 |
| 40. Liga Profesional Argentina Argentina | 4.83 | 492 |
Showing every competition. Major competitions only
Counted from match events, so a league appears only once its matches carry recorded cards.