Does a half-time lead hold?

How often the side leading at the break goes on to win, among matches where someone actually led.

A half-time lead is safest in Fußball-Regionalliga Mitte (Österreich): it holds 86,9% of the time.

Does a half-time lead hold?
League	Lead held	Matches led
1. Fußball-Regionalliga Mitte Österreich	86.9%	130
2. Meistriliiga Estland	86.6%	119
3. Serie C Brasilien	85.8%	113
4. Football League Griechenland	84.1%	220
5. Erovnuli Liga 2 Georgien	83.3%	221
6. Persha Liga Ukraine	82%	111
7. Kuwaiti Premier League Kuwait	81%	100
8. Usbekische Professionelle Fußballliga Usbekistan	80.9%	115
9. Primera División Spanien	80.3%	223
10. Veikkausliiga Finnland	79.5%	117
11. Serie A Italien	79.2%	221
12. National League England	78.9%	299
13. Liga Pro Serie B Ecuador	78.9%	123
14. Ligue 1 Algerien	78.8%	113
15. Ligue 1 Tunesien	78.8%	113
16. Fußball-Regionalliga Ost Österreich	78.2%	133
17. Primeira Liga Portugal	78.1%	137
18. Fußball-Regionalliga West Österreich	77.9%	145
19. Premier League England	77.9%	231
20. Premier League Wales	77.8%	117
21. Serie B Brasilien	77.6%	210
22. Premiership Schottland	77.2%	145
23. Championship Schottland	77%	113
24. Esiliiga Estland	76.9%	117
25. Wyschejschaja Liha Belarus	76.9%	104
26. Liga Nacional Guatemala	76.6%	154
27. 1. Division Dänemark	76%	121
28. Division 1A Belgien	76%	175
29. Serie A Brasilien	76%	183
30. Fußball-Bundesliga Deutschland	75.8%	190
31. 2. Liga Österreich	75.7%	103
32. 3. Fußball-Liga Deutschland	75.7%	218
33. Super League Griechenland	75.6%	176
34. National (D3) Frankreich	75.2%	153
35. Primera B Metropolitana Argentinien	75.1%	201
36. TFF 1. Lig Türkei	74.2%	209
37. J1 League Japan	74.1%	158
38. Süper Lig Türkei	73.9%	153
39. Torneo Federal A Argentinien	73.8%	202
40. Thai League Thailand	73.5%	136

Showing every competition. Major competitions only

Only matches where the sides were not level at the break. A draw counts as the lead lost.