Six Flags St Louis ride reliability

1. 1Spinsanity5d 6h lost · 3 breakdowns · down on 19 of 19 days 22.4%
2. 2Foghorn Leghorn National Park Railway4d 23h lost · 5 breakdowns · down on 19 of 19 days 26.5%
3. 3Elmer Fudd Weather Balloons4d 22h lost · 4 breakdowns · down on 19 of 19 days 26.6%
4. 4Daffy Duck Stars on Parade4d 21h lost · 4 breakdowns · down on 19 of 19 days 27.6%
5. 5Taz Twisters4d 21h lost · 5 breakdowns · down on 19 of 19 days 27.6%
6. 6Tweety Twee House4d 20h lost · 5 breakdowns · down on 19 of 19 days 27.7%
7. 7Bugs Bunny Fort Fun4d 20h lost · 4 breakdowns · down on 19 of 19 days 27.8%
8. 8Marvin the Martian Camp Invasion4d 20h lost · 4 breakdowns · down on 19 of 19 days 27.8%
9. 9Bugs Bunny Ranger Pilots4d 15h lost · 4 breakdowns · down on 17 of 19 days 33.2%
10. 10Pandemonium3d 12h lost · 4 breakdowns · down on 18 of 19 days 44.5%
11. 11Tommy G. Robertson Railroad3d 2h lost · 7 breakdowns · down on 15 of 19 days 54.8%
12. 12SUPERGIRL™ Sky Flyer2d 19h lost · 6 breakdowns · down on 15 of 19 days 56.5%
13. 13Colossus2d 21h lost · 3 breakdowns · down on 13 of 19 days 56.9%
14. 14CATWOMAN™ Whip2d 18h lost · 5 breakdowns · down on 13 of 19 days 59.2%
15. 15River King Mine Train2d 8h lost · 11 breakdowns · down on 13 of 19 days 65.1%
16. 16American Thunder2d 6h lost · 2 breakdowns · down on 12 of 19 days 65.4%
17. 17Screamin’ Eagle2d 4h lost · 6 breakdowns · down on 14 of 19 days 66.1%
18. 18Rookie Racer2d 2h lost · 4 breakdowns · down on 13 of 19 days 67.4%
19. 19The Boss1d 21h lost · 8 breakdowns · down on 13 of 19 days 70.7%
20. 20Boomerang1d 21h lost · 2 breakdowns · down on 10 of 19 days 72.6%
21. 21SHAZAM!™1d 8h lost · 2 breakdowns · down on 7 of 19 days 79.2%
22. 22Ninja1d 0h lost · 11 breakdowns · down on 10 of 19 days 83.8%
23. 23BATMAN™: The Ride21h 8m lost · 3 breakdowns · down on 10 of 19 days 85.8%

Breakdowns cluster at 6pm, with 45 of the 110 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 371 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 2 closures start in the 10pm 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 Oct, when 94.7% of the park's ride hours were lost and 36 of 38 rides went down at some point.