Valley Fair ride reliability

1. 1Minnesota River Valley Railroad8d 13h lost · 2 breakdowns · down on 24 of 24 days 0%
2. 2Delirious4d 17h lost · 5 breakdowns · down on 16 of 24 days 48.3%
3. 3SuperCat2d 6h lost · 4 breakdowns · down on 9 of 24 days 75.5%
4. 4Excalibur1d 12h lost · 1 breakdown · down on 7 of 24 days 79.1%
5. 5Thunder Canyon1d 12h lost · 1 breakdown · down on 7 of 24 days 79.1%
6. 6Snoopy's Rocket Express1d 20h lost · 2 breakdowns · down on 8 of 24 days 79.3%
7. 7Flying Eagles1d 14h lost · 4 breakdowns · down on 7 of 24 days 81.2%
8. 8Linus' Beetle Bugs1d 13h lost · 5 breakdowns · down on 7 of 24 days 81.5%
9. 9Wheel of Fortune1d 13h lost · 3 breakdowns · down on 7 of 24 days 82.3%
10. 10Woodstock Whirlybirds1d 11h lost · 4 breakdowns · down on 7 of 24 days 82.7%
11. 11Northern Lights1d 8h lost · 5 breakdowns · down on 7 of 24 days 82.9%
12. 12North Star1d 5h lost · 7 breakdowns · down on 8 of 24 days 87.1%
13. 13Steel Venom22h 38m lost · 8 breakdowns · down on 8 of 24 days 90.1%
14. 14Lucy's Tugboat20h 21m lost · 4 breakdowns · down on 6 of 24 days 90.8%
15. 15Snoopy's Deep Sea Divers13h 35m lost · 2 breakdowns · down on 3 of 24 days 93.4%
16. 16Sally's Swing Set12h 40m lost · 3 breakdowns · down on 4 of 24 days 93.7%
17. 17Tilter11h 7m lost · 4 breakdowns · down on 4 of 24 days 94.5%
18. 18Linus Launcher10h 58m lost · 4 breakdowns · down on 5 of 24 days 94.6%
19. 19Renegade11h 10m lost · 4 breakdowns · down on 5 of 24 days 94.7%
20. 20High Roller10h 29m lost · 5 breakdowns · down on 6 of 24 days 94.9%
21. 21Wild Thing10h 1m lost · 4 breakdowns · down on 5 of 24 days 95.1%
22. 22Scrambler9h 58m lost · 3 breakdowns · down on 4 of 24 days 95.1%
23. 23Antique Autos9h 43m lost · 3 breakdowns · down on 4 of 24 days 95.2%
24. 24Mad Mouse9h 43m lost · 3 breakdowns · down on 5 of 24 days 95.2%
25. 25Xtreme Swing9h 43m lost · 4 breakdowns · down on 5 of 24 days 95.2%
26. 26Corkscrew9h 13m lost · 2 breakdowns · down on 4 of 24 days 95.4%
27. 27Snoopy vs. Red Baron9h 11m lost · 2 breakdowns · down on 4 of 24 days 95.4%
28. 28Bumper Cars9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
29. 29Carousel9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
30. 30Cosmic Coaster9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
31. 31Ferris Wheel9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
32. 32Flying Ace Balloon Race9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
33. 33Monster9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
34. 34Power Tower9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
35. 35Charlie Brown's Wind-Up9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
36. 36Kite Eating Tree9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
37. 37PEANUTS™ 5009h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%
38. 38PEANUTS™ Road Rally9h 7m lost · 2 breakdowns · down on 3 of 24 days 95.5%

Breakdowns cluster at 4pm, with 64 of the 117 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 108 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 3 closures start in the 7pm 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 29 Aug, when 52.2% of the park's ride hours were lost and 39 of 39 rides went down at some point.