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 League One (England): the side reduced to ten loses 71.4% of the time.

What does a sending-off cost?
League	Went on to lose	Matches with a red
1. League One England	71.4%	63
2. Thai League 1 Thailand	69.8%	53
3. League Two England	63.6%	77
4. Serie C - Girone B Italy	63.2%	87
5. Youth Championship Russia	63%	73
6. Regionalliga - West Germany	61.7%	60
7. Second League - Group 3 Russia	60.3%	73
8. Jupiler Pro League Belgium	60%	65
9. Championship England	59.7%	72
10. First League Russia	58.2%	134
11. 2. Liga Austria	57.6%	59
12. II Liga - East Poland	57.5%	73
13. Second League - Group 1 Russia	57.1%	63
14. Segunda Liga Portugal	56.9%	72
15. 2. Bundesliga Germany	56.7%	60
16. Primeira Liga Portugal	56.5%	69
17. 1. Lig Türkiye	56.4%	55
18. Super Liga Serbia	56.1%	57
19. Premier League Russia	55.6%	81
20. Liga I Romania	55.2%	67
21. Liga Pro Ecuador	54.8%	84
22. Serie C - Girone C Italy	54.5%	99
23. Regionalliga - SudWest Germany	53.8%	80
24. 3. Lig - Group 1 Türkiye	53.7%	54
25. Primera División Bolivia	52.8%	72
26. Liga MX Mexico	52.5%	99
27. Serie A Brazil	52%	98
28. First League Bulgaria	51.8%	56
29. Ligue 1 France	51.7%	89
30. First NL Croatia	51.4%	70
31. 3. Liga Germany	51.3%	80
32. Serie C - Girone A Italy	51.1%	94
33. Eredivisie Netherlands	50.8%	59
34. Segunda División Spain	50.8%	124
35. Primera División Peru	50%	106
36. Primera División Venezuela	50%	52
37. National League England	49.5%	95
38. Primera División Chile	49.5%	93
39. NB II Hungary	49.4%	77
40. Persha Liga Ukraine	49.2%	61

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.