Which leagues are decided by a single goal?

Share of matches won by exactly one — the closest football gets to a measure of tension.

A-League (Avustralya) is the tightest: 51,4% of its matches are settled by a single goal.

Which leagues are decided by a single goal?
League	Won by one	Matches
1. A-League Avustralya	51.4%	138
2. Premier League Jamaika	49.6%	228
3. FKF Premier League Kenya	48.3%	240
4. 1st Division Arnavutluk	47.1%	240
5. Ligue Haïtienne Haiti	46.4%	192
6. Ed-Devrî'l-Mısrî'l-Mümtaz Mısır	46.3%	136
7. Premier League Gana	46.1%	241
8. Segunda División Venezuela	45.7%	269
9. Serie B Brezilya	45.3%	380
10. 1. Lig Türkiye	45%	311
11. Ligue 2 Cezayir	45%	240
12. J. Ligi Japonya	44.8%	306
13. Championship İngiltere	44.6%	556
14. Super League Zambiya	44.6%	240
15. Kazakistan Süper Ligi Kazakistan	44.5%	182
16. Yunanistan Süper Ligi Yunanistan	44.3%	253
17. Major League Soccer Amerika Birleşik Devletleri	44.1%	338
18. Primera Division El Salvador	43.9%	189
19. J2 League Japonya	43.9%	465
20. Druha Liga Ukrayna	43.6%	110
21. Ligue 1 Tunus	43.5%	124
22. 2. Lig Türkiye	43%	272
23. Premier League Uganda	42.9%	240
24. Ligue 1 Cezayir	42.5%	240
25. Ermenistan Süper Ligi Ermenistan	42.3%	168
26. NB I Macaristan	41.7%	240
27. Özbekistan Oliy Ligi Özbekistan	41.2%	182
28. 3. Lig - Group 1 Türkiye	41.2%	306
29. Championnat National Fransa	41.1%	380
30. Beta Ethniki Yunanistan	41%	420
31. National 2 - Group A Fransa	40.8%	306
32. Primera Nacional Arjantin	40.8%	380
33. Primera Division Guatemala	40.8%	373
34. Beyaz Rusya Süper Ligi Belarus	40.6%	165
35. Premier Lig İngiltere	40.5%	380
36. La Liga İspanya	40.5%	380
37. Football League Two İngiltere	40.3%	548
38. Serie C Brezilya	40.2%	194
39. Tayland Ligi Tayland	40.2%	306
40. Primera C Arjantin	40.2%	386

Showing every competition. Major competitions only

League play only. Draws are not counted here — they are their own question.