Chessington World Of Adventures ride reliability

1. 1AMAZU: Treetop Adventure19d 19h lost · 1 breakdown · down on 60 of 60 days 0%
2. 2Vampire10d 15h lost · 33 breakdowns · down on 60 of 60 days 45.2%
3. 3Elmer's Flying Jumbos7d 20h lost · 90 breakdowns · down on 60 of 60 days 57.9%
4. 4ZUFARI4d 3h lost · 38 breakdowns · down on 59 of 60 days 78.7%
5. 5Tiger Rock4d 4h lost · 67 breakdowns · down on 60 of 60 days 79%
6. 6Treetop Hoppers4d 2h lost · 64 breakdowns · down on 60 of 60 days 79.2%
7. 7Croc Drop3d 6h lost · 18 breakdowns · down on 59 of 60 days 84.6%
8. 8Dragon's Fury2d 22h lost · 78 breakdowns · down on 60 of 60 days 85.1%
9. 9Jungle Rangers2d 17h lost · 61 breakdowns · down on 60 of 60 days 86.1%
10. 10River Rafts2d 11h lost · 99 breakdowns · down on 60 of 60 days 87.5%
11. 11Mamba Strike2d 10h lost · 35 breakdowns · down on 34 of 60 days 87.5%
12. 12Mandrill Mayhem2d 9h lost · 107 breakdowns · down on 54 of 60 days 87.7%
13. 13Griffin's Galleon2d 7h lost · 92 breakdowns · down on 60 of 60 days 87.9%
14. 14Barrel Bail Out!2d 6h lost · 70 breakdowns · down on 59 of 60 days 88.3%
15. 15Rattlesnake2d 3h lost · 32 breakdowns · down on 59 of 60 days 89.1%
16. 16Adventure Tree Carousel2d 0h lost · 110 breakdowns · down on 60 of 60 days 89.7%
17. 17Trawler Trouble1d 19h lost · 23 breakdowns · down on 60 of 60 days 91%
18. 18Skye's Helicopter Heroes1d 18h lost · 52 breakdowns · down on 40 of 60 days 91%
19. 19Ostrich Stampede1d 12h lost · 42 breakdowns · down on 29 of 60 days 92.2%
20. 20Zuma's Hovercraft Adventure1d 10h lost · 63 breakdowns · down on 50 of 60 days 92.8%
21. 21The Gruffalo River Ride Adventure1d 8h lost · 73 breakdowns · down on 45 of 60 days 93.1%
22. 22Tomb Blaster1d 7h lost · 24 breakdowns · down on 58 of 60 days 93.4%
23. 23Tiny Truckers1d 6h lost · 41 breakdowns · down on 60 of 60 days 93.8%
24. 24Seastorm1d 2h lost · 29 breakdowns · down on 45 of 60 days 94.5%
25. 25Marshall's Firetruck Rescue1d 2h lost · 24 breakdowns · down on 33 of 60 days 94.5%
26. 26Canopy Capers23h 53m lost · 8 breakdowns · down on 58 of 60 days 95%
27. 27Chase's Mountain Mission22h 42m lost · 25 breakdowns · down on 34 of 60 days 95.1%
28. 28Sea Dragons21h 16m lost · 20 breakdowns · down on 58 of 60 days 95.6%
29. 29Room on the Broom - A Magical Journey20h 54m lost · 19 breakdowns · down on 23 of 60 days 95.6%
30. 30Dragon's Playhouse - Soft Play16h 55m lost · 13 breakdowns · down on 58 of 60 days 96.4%
31. 31Blue Barnacle14h 33m lost · 12 breakdowns · down on 58 of 60 days 97%

Breakdowns cluster at 3pm, with 246 of the 1439 recorded closures starting in that hour - so the ride you most want is safest earlier in the day, not saved for last. A further 311 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. A further 24 closures start in the 6pm 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 10 Aug, when 96.4% of the park's ride hours were lost and 31 of 31 rides went down at some point.