Tokyo DisneySea ride reliability

1. 1DisneySea Transit Steamer Line (Lost River Delta)9d 3h lost · 44 breakdowns · down on 22 of 22 days 15.8%
2. 2Venetian Gondolas7d 12h lost · 82 breakdowns · down on 22 of 22 days 31.1%
3. 3DisneySea Transit Steamer Line (American Waterfront)7d 11h lost · 84 breakdowns · down on 22 of 22 days 31.4%
4. 4Lost River Delta (Miguel: until 1:00 p.m.)7d 4h lost · 22 breakdowns · down on 22 of 22 days 33.8%
5. 5Tower of Terror6d 0h lost · 1 breakdown · down on 22 of 22 days 45.2%
6. 6Big City Vehicles3d 7h lost · 40 breakdowns · down on 22 of 22 days 69.8%
7. 7The Leonardo Challenge2d 16h lost · 23 breakdowns · down on 22 of 22 days 75.3%
8. 8Lost River Delta (Miguel: from 1:30 p.m.)2d 7h lost · 13 breakdowns · down on 22 of 22 days 78.9%
9. 9Anna and Elsa's Frozen Journey18h 29m lost · 10 breakdowns · down on 11 of 22 days 92.9%
10. 10Fairy Tinker Bell's Busy Buggies18h 16m lost · 22 breakdowns · down on 20 of 22 days 92.9%
11. 11Journey to the Center of the Earth14h 55m lost · 5 breakdowns · down on 22 of 22 days 94.4%
12. 12The Magic Lamp Theater12h 47m lost · 25 breakdowns · down on 22 of 22 days 95%
13. 13Raging Spirits9h 21m lost · 5 breakdowns · down on 22 of 22 days 96.4%
14. 14Peter Pan's Never Land Adventure8h 22m lost · 6 breakdowns · down on 8 of 22 days 96.8%
15. 15DisneySea Electric Railway (Port Discovery)7h 2m lost · 3 breakdowns · down on 22 of 22 days 97.3%
16. 16DisneySea Electric Railway (American Waterfront)7h 2m lost · 3 breakdowns · down on 22 of 22 days 97.3%
17. 17Rapunzel's Lantern Festival6h 38m lost · 4 breakdowns · down on 4 of 22 days 97.5%
18. 18Flounder's Flying Fish Coaster5h 47m lost · 5 breakdowns · down on 22 of 22 days 97.7%
19. 19Scuttle's Scooters4h 54m lost · 4 breakdowns · down on 22 of 22 days 98.1%
20. 20Jasmine's Flying Carpets4h 23m lost · 5 breakdowns · down on 22 of 22 days 98.3%
21. 21Caravan Carousel3h 24m lost · 2 breakdowns · down on 22 of 22 days 98.7%
22. 22Toy Story Mania!2h 44m lost · 3 breakdowns · down on 4 of 22 days 99%
23. 2320,000 Leagues Under the Sea2h 19m lost · 1 breakdown · down on 22 of 22 days 99.1%
24. 24Nemo & Friends SeaRider1h 46m lost · 1 breakdown · down on 22 of 22 days 99.3%
25. 25Jumpin' Jellyfish1h 31m lost · 2 breakdowns · down on 22 of 22 days 99.4%
26. 26Turtle Talk1h 28m lost · 2 breakdowns · down on 22 of 22 days 99.4%
27. 27Sindbad's Storybook Voyage1h 1m lost · 1 breakdown · down on 22 of 22 days 99.6%
28. 28The Whirlpool1h 0m lost · 1 breakdown · down on 22 of 22 days 99.6%
29. 29Blowfish Balloon Race54m lost · 1 breakdown · down on 22 of 22 days 99.6%
30. 30Soaring: Fantastic Flight20m lost · 1 breakdown · down on 2 of 22 days 99.9%

Breakdowns cluster at 1pm, with 66 of the 368 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 110 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 53 closures start in the 8pm 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 21 Sept, when 46.3% of the park's ride hours were lost and 42 of 45 rides went down at some point.