Disneyland Park ride reliability

1. 1Sailing Ship Columbia35d 6h lost · 14 breakdowns · down on 59 of 60 days 5.9%
2. 2Davy Crockett's Explorer Canoes32d 10h lost · 12 breakdowns · down on 59 of 60 days 13.4%
3. 3Indiana Jones™ Adventure28d 6h lost · 34 breakdowns · down on 59 of 60 days 25%
4. 4Mad Tea Party20d 14h lost · 4 breakdowns · down on 58 of 60 days 45.6%
5. 5Mark Twain Riverboat14d 5h lost · 51 breakdowns · down on 59 of 60 days 61.9%
6. 6Roger Rabbit's Car Toon Spin9d 6h lost · 180 breakdowns · down on 60 of 60 days 75.4%
7. 7Tiana's Bayou Adventure5d 23h lost · 100 breakdowns · down on 60 of 60 days 84%
8. 8Mickey & Minnie's Runaway Railway5d 5h lost · 73 breakdowns · down on 59 of 60 days 86%
9. 9Alice in Wonderland4d 23h lost · 120 breakdowns · down on 60 of 60 days 86.8%
10. 10Star Wars: Rise of the Resistance4d 18h lost · 88 breakdowns · down on 60 of 60 days 87.3%
11. 11Peter Pan's Flight4d 8h lost · 111 breakdowns · down on 60 of 60 days 88.4%
12. 12Jungle Cruise4d 1h lost · 62 breakdowns · down on 60 of 60 days 89.1%
13. 13Big Thunder Mountain Railroad3d 5h lost · 62 breakdowns · down on 60 of 60 days 91.4%
14. 14Chip 'n' Dale's GADGETcoaster3d 4h lost · 40 breakdowns · down on 59 of 60 days 91.5%
15. 15Mr. Toad's Wild Ride3d 2h lost · 110 breakdowns · down on 60 of 60 days 91.7%
16. 16Matterhorn Bobsleds2d 23h lost · 58 breakdowns · down on 59 of 60 days 92%
17. 17Pinocchio's Daring Journey2d 23h lost · 89 breakdowns · down on 60 of 60 days 92.1%
18. 18King Arthur Carrousel2d 14h lost · 59 breakdowns · down on 60 of 60 days 93%
19. 19Snow White's Enchanted Wish2d 14h lost · 62 breakdowns · down on 60 of 60 days 93.1%
20. 20Space Mountain2d 11h lost · 48 breakdowns · down on 59 of 60 days 93.4%
21. 21The Many Adventures of Winnie the Pooh2d 8h lost · 100 breakdowns · down on 60 of 60 days 93.8%
22. 22Pirates of the Caribbean2d 7h lost · 36 breakdowns · down on 59 of 60 days 93.9%
23. 23"it's a small world"2d 6h lost · 39 breakdowns · down on 59 of 60 days 94%
24. 24Haunted Mansion Holiday1d 22h lost · 28 breakdowns · down on 60 of 60 days 94.8%
25. 25Disneyland Railroad1d 14h lost · 38 breakdowns · down on 60 of 60 days 95.7%
26. 26Buzz Lightyear Astro Blasters1d 7h lost · 28 breakdowns · down on 57 of 60 days 96.4%
27. 27Astro Orbitor1d 7h lost · 22 breakdowns · down on 57 of 60 days 96.5%
28. 28Casey Jr. Circus Train23h 43m lost · 43 breakdowns · down on 59 of 60 days 97.4%
29. 29Finding Nemo Submarine Voyage20h 33m lost · 13 breakdowns · down on 59 of 60 days 97.7%
30. 30Storybook Land Canal Boats18h 16m lost · 22 breakdowns · down on 60 of 60 days 98%
31. 31Dumbo the Flying Elephant10h 20m lost · 22 breakdowns · down on 60 of 60 days 98.9%
32. 32Star Tours - The Adventures Continue3h 32m lost · 3 breakdowns · down on 56 of 60 days 99.6%
33. 33Millennium Falcon: Smugglers Run2h 59m lost · 1 breakdown · down on 58 of 60 days 99.7%
34. 34Autopia2h 52m lost · 3 breakdowns · down on 56 of 60 days 99.7%

Breakdowns cluster at 8pm, with 330 of the 1,767 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 482 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 8 closures start in the 11pm 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 3 Oct, when 24.5% of the park's ride hours were lost and 35 of 36 rides went down at some point.