Legoland Japan ride reliability

1. 1⑪Submarine Adventure4d 18h lost · 4 breakdowns · down on 41 of 57 days 72.8%
2. 2⑧Cargo Ace3d 7h lost · 20 breakdowns · down on 48 of 57 days 81.1%
3. 3⑲The Dragon2d 12h lost · 24 breakdowns · down on 51 of 57 days 85.7%
4. 4㉗Anchors Away!2d 1h lost · 15 breakdowns · down on 45 of 57 days 88.3%
5. 5㉕Kai's Sky Masters1d 17h lost · 16 breakdowns · down on 42 of 57 days 91.1%
6. 6⑥Brick Party1d 6h lost · 2 breakdowns · down on 37 of 57 days 92.5%
7. 7③Imagination Celebration9h 55m lost · 4 breakdowns · down on 40 of 57 days 97.6%
8. 8㉑Merlin's Flying Machines10h 7m lost · 11 breakdowns · down on 39 of 57 days 97.9%
9. 9⑩Beetle Bounce7h 12m lost · 17 breakdowns · down on 39 of 57 days 98.5%
10. 10⑨Lost Kingdom Adventure6h 50m lost · 8 breakdowns · down on 43 of 57 days 98.5%
11. 11㉖Splash Battle6h 8m lost · 10 breakdowns · down on 40 of 57 days 98.7%
12. 12⑳Dragon's Apprentice5h 36m lost · 7 breakdowns · down on 41 of 57 days 98.8%
13. 13⑦DUPLO® Express5h 10m lost · 2 breakdowns · down on 40 of 57 days 98.8%
14. 14⑱Coast Guard HQ3h 49m lost · 5 breakdowns · down on 45 of 57 days 99.2%
15. 15㉓Flying NINJAGO3h 36m lost · 5 breakdowns · down on 40 of 57 days 99.2%
16. 16⑤Observation Tower3h 27m lost · 3 breakdowns · down on 41 of 57 days 99.2%
17. 17⑫S.Q.U.I.D. Surfer3h 20m lost · 3 breakdowns · down on 37 of 57 days 99.2%
18. 18④Cat Cloud Busters3h 14m lost · 5 breakdowns · down on 40 of 57 days 99.3%
19. 19⑮City Airport2h 55m lost · 2 breakdowns · down on 39 of 57 days 99.3%
20. 20⑬Rescue Academy2h 46m lost · 1 breakdown · down on 37 of 57 days 99.4%
21. 21㉒Merlin's Challenge2h 6m lost · 2 breakdowns · down on 37 of 57 days 99.5%
22. 22⑰Driving School1h 35m lost · 1 breakdown · down on 37 of 57 days 99.6%
23. 23⑯Jr. Driving School1h 31m lost · 1 breakdown · down on 36 of 57 days 99.7%
24. 24①LEGO ® Factory Tour1h 1m lost · 0 breakdowns · down on 36 of 57 days 99.8%

Breakdowns cluster at 12pm, with 39 of the 158 closures that started before the park's final hour beginning then - so the ride you most want is safest earlier in the day, not saved for last. A further 702 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 10 closures start in the 5pm hour, when the park is shutting - those are rides finishing their day, not failing, so they are left out here.

The worst day in this window was 16 Sept, when 47.5% of the park's ride hours were lost and 36 of 36 rides went down at some point.