What does a sending-off cost?

How often a side that has a player sent off goes on to lose. Across the majors it is 53.3% — against a baseline defeat rate near a third.

A red card is most expensive in MLS Next Pro (Amerika Birleşik Devletleri): the side reduced to ten loses 72,7% of the time.

What does a sending-off cost?
League	Went on to lose	Matches with a red
1. MLS Next Pro Amerika Birleşik Devletleri	72.7%	77
2. National League North İngiltere	68.9%	74
3. Serie C - Girone B İtalya	67.4%	89
4. II Liga - East Polonya	65.1%	63
5. 3. Liga Almanya	64.8%	71
6. Major League Soccer Amerika Birleşik Devletleri	64.8%	88
7. Ligat ha'Al İsrail	63.4%	71
8. Regionalliga - Nordost Almanya	63%	54
9. Tweede Divisie Hollanda	62.5%	56
10. Portekiz Süper Ligi Portekiz	62.3%	69
11. Serie A İtalya	62.2%	74
12. Belçika Birinci Ligi Belçika	62.1%	66
13. 1. Lig Türkiye	62.1%	95
14. Eredivisie Hollanda	62%	50
15. Oberliga - Bayern Süd Almanya	61.7%	60
16. Ligue 2 Fransa	61.5%	65
17. Oberliga - Nordost-Süd Almanya	61.5%	52
18. Umaglesi Liga Gürcistan	61.5%	52
19. EFL League One İngiltere	61.4%	70
20. Liga MX Femenil Meksika	61.3%	62
21. Esiliiga A Estonya	61.1%	54
22. Yunanistan Süper Ligi Yunanistan	60.6%	71
23. New South Wales NPL Avustralya	60.3%	63
24. Non League Premier - Northern İngiltere	60.3%	73
25. 2. Lig Türkiye	60%	85
26. Avusturya Birinci Ligi Avusturya	60%	50
27. Devrî'l-Muhterifin es-Suudî Suudi Arabistan	59.7%	62
28. Segunda División RFEF - Group 5 İspanya	59.7%	62
29. Youth Championship Rusya	59.3%	59
30. Ekstraklasa Polonya	58.8%	51
31. FAW Championship Galler	58.5%	82
32. LigaPro Portekiz	58.3%	72
33. USL League Two Amerika Birleşik Devletleri	58%	50
34. Serie C - Girone C İtalya	57.8%	102
35. Fransa Ligue 1 Fransa	57.8%	64
36. Primera División RFEF - Group 1 İspanya	57.3%	75
37. Reserve League Arjantin	56.9%	109
38. Bundesliga Almanya	56.9%	51
39. Liga Premier Serie B Meksika	56.9%	51
40. 2. Bundesliga Almanya	56.6%	53

Showing every competition. Major competitions only

League play only. A match counts once per side that saw a red, so a match with two sendings-off appears on both sides of the ledger.