Valley Fair ride reliability

1. 1Minnesota River Valley Railroad7d 8h lost · 2 breakdowns · down on 20 of 20 days 0%
2. 2Delirious4d 17h lost · 5 breakdowns · down on 16 of 20 days 37.9%
3. 3SuperCat2d 6h lost · 4 breakdowns · down on 9 of 20 days 70.6%
4. 4Snoopy's Rocket Express1d 20h lost · 2 breakdowns · down on 8 of 20 days 75.2%
5. 5Flying Eagles1d 14h lost · 4 breakdowns · down on 7 of 20 days 77.4%
6. 6Linus' Beetle Bugs1d 13h lost · 5 breakdowns · down on 7 of 20 days 77.9%
7. 7Wheel of Fortune1d 13h lost · 3 breakdowns · down on 7 of 20 days 78.7%
8. 8Woodstock Whirlybirds1d 11h lost · 4 breakdowns · down on 7 of 20 days 79.2%
9. 9Northern Lights1d 8h lost · 5 breakdowns · down on 7 of 20 days 79.5%
10. 10North Star1d 5h lost · 7 breakdowns · down on 8 of 20 days 84.5%
11. 11Steel Venom22h 38m lost · 8 breakdowns · down on 8 of 20 days 88.1%
12. 12Lucy's Tugboat20h 21m lost · 4 breakdowns · down on 6 of 20 days 89%
13. 13Snoopy's Deep Sea Divers13h 35m lost · 2 breakdowns · down on 3 of 20 days 92.1%
14. 14Sally's Swing Set12h 40m lost · 3 breakdowns · down on 4 of 20 days 92.5%
15. 15Tilter11h 7m lost · 4 breakdowns · down on 4 of 20 days 93.4%
16. 16Linus Launcher10h 58m lost · 4 breakdowns · down on 5 of 20 days 93.5%
17. 17Renegade11h 10m lost · 4 breakdowns · down on 5 of 20 days 93.6%
18. 18High Roller10h 29m lost · 5 breakdowns · down on 6 of 20 days 93.9%
19. 19Wild Thing10h 1m lost · 4 breakdowns · down on 5 of 20 days 94.1%
20. 20Scrambler9h 58m lost · 3 breakdowns · down on 4 of 20 days 94.1%
21. 21Antique Autos9h 43m lost · 3 breakdowns · down on 4 of 20 days 94.2%
22. 22Mad Mouse9h 43m lost · 3 breakdowns · down on 5 of 20 days 94.3%
23. 23Xtreme Swing9h 43m lost · 4 breakdowns · down on 5 of 20 days 94.3%
24. 24Corkscrew9h 13m lost · 2 breakdowns · down on 4 of 20 days 94.5%
25. 25Snoopy vs. Red Baron9h 11m lost · 2 breakdowns · down on 4 of 20 days 94.5%
26. 26Bumper Cars9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
27. 27Carousel9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
28. 28Cosmic Coaster9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
29. 29Ferris Wheel9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
30. 30Flying Ace Balloon Race9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
31. 31Monster9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
32. 32Power Tower9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
33. 33Charlie Brown's Wind-Up9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
34. 34Kite Eating Tree9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
35. 35PEANUTS™ 5009h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
36. 36PEANUTS™ Road Rally9h 7m lost · 2 breakdowns · down on 3 of 20 days 94.5%
37. 37Excalibur7h 18m lost · 1 breakdown · down on 3 of 20 days 94.9%
38. 38Thunder Canyon7h 18m lost · 1 breakdown · down on 3 of 20 days 94.9%

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 92 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.