Disney California Adventure ride reliability

1. 1Guardians of the Galaxy - Monsters After Dark14d 9h lost · 2 breakdowns · down on 60 of 60 days 50.6%
2. 2Guardians of the Galaxy - Mission: BREAKOUT!14d 0h lost · 57 breakdowns · down on 59 of 60 days 53.6%
3. 3Golden Zephyr9d 9h lost · 100 breakdowns · down on 60 of 60 days 67.9%
4. 4Luigi's Honkin' Haul-O-Ween6d 6h lost · 201 breakdowns · down on 60 of 60 days 78.6%
5. 5Silly Symphony Swings6d 1h lost · 79 breakdowns · down on 59 of 60 days 79.6%
6. 6Incredicoaster5d 7h lost · 49 breakdowns · down on 58 of 60 days 82%
7. 7Goofy's Sky School4d 1h lost · 87 breakdowns · down on 60 of 60 days 86%
8. 8Grizzly River Run3d 18h lost · 74 breakdowns · down on 60 of 60 days 87.3%
9. 9WEB SLINGERS: A Spider-Man Adventure3d 10h lost · 77 breakdowns · down on 59 of 60 days 88.2%
10. 10Pixar Pal-A-Round – Non-Swinging3d 10h lost · 59 breakdowns · down on 59 of 60 days 88.6%
11. 11Pixar Pal-A-Round - Swinging3d 10h lost · 60 breakdowns · down on 59 of 60 days 88.7%
12. 12Radiator Springs Racers3d 7h lost · 74 breakdowns · down on 58 of 60 days 88.9%
13. 13The Little Mermaid - Ariel's Undersea Adventure2d 6h lost · 28 breakdowns · down on 58 of 60 days 92.3%
14. 14Monsters, Inc. Mike & Sulley to the Rescue!1d 16h lost · 58 breakdowns · down on 57 of 60 days 94.4%
15. 15Toy Story Midway Mania!1d 16h lost · 22 breakdowns · down on 60 of 60 days 94.4%
16. 16Inside Out Emotional Whirlwind1d 12h lost · 102 breakdowns · down on 60 of 60 days 94.8%
17. 17Jessie's Critter Carousel1d 8h lost · 60 breakdowns · down on 60 of 60 days 95.7%
18. 18Jumpin' Jellyfish14h 27m lost · 22 breakdowns · down on 56 of 60 days 97.9%
19. 19Soarin’ Across America6h 57m lost · 4 breakdowns · down on 52 of 60 days 99%
20. 20Mater's Graveyard JamBOOree3h 54m lost · 4 breakdowns · down on 58 of 60 days 99.5%

Breakdowns cluster at 2pm, with 143 of the 1,209 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 211 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 9pm 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 6 Sept, when 31% of the park's ride hours were lost and 22 of 22 rides went down at some point.