Chessington World Of Adventures ride reliability

1. 1AMAZU: Treetop Adventure10d 6h lost · 3 breakdowns · down on 50 of 50 days 38.5%
2. 2River Rafts6d 12h lost · 48 breakdowns · down on 50 of 50 days 54%
3. 3Rattlesnake5d 9h lost · 17 breakdowns · down on 50 of 50 days 61.4%
4. 4Griffin's Galleon4d 21h lost · 34 breakdowns · down on 50 of 50 days 64.6%
5. 5Treetop Hoppers3d 13h lost · 33 breakdowns · down on 50 of 50 days 75.4%
6. 6Croc Drop3d 17h lost · 14 breakdowns · down on 50 of 50 days 78.4%
7. 7Tiger Rock2d 18h lost · 40 breakdowns · down on 50 of 50 days 83.4%
8. 8Dragon's Fury1d 13h lost · 72 breakdowns · down on 50 of 50 days 89.7%
9. 9Vampire1d 9h lost · 43 breakdowns · down on 50 of 50 days 90.6%
10. 10ZUFARI1d 12h lost · 25 breakdowns · down on 50 of 50 days 90.9%
11. 11Elmer's Flying Jumbos1d 6h lost · 59 breakdowns · down on 50 of 50 days 91.9%
12. 12Zuma's Hovercraft Adventure1d 3h lost · 51 breakdowns · down on 40 of 50 days 92.3%
13. 13Mandrill Mayhem1d 1h lost · 65 breakdowns · down on 39 of 50 days 93.2%
14. 14Trawler Trouble1d 1h lost · 38 breakdowns · down on 50 of 50 days 93.2%
15. 15Mamba Strike21h 56m lost · 22 breakdowns · down on 27 of 50 days 94.1%
16. 16Jungle Rangers18h 52m lost · 25 breakdowns · down on 50 of 50 days 95.1%
17. 17Adventure Tree Carousel18h 6m lost · 54 breakdowns · down on 50 of 50 days 95.5%
18. 18The Gruffalo River Ride Adventure15h 21m lost · 35 breakdowns · down on 33 of 50 days 95.8%
19. 19Ostrich Stampede15h 17m lost · 26 breakdowns · down on 23 of 50 days 96%
20. 20Dragon's Playhouse - Soft Play13h 8m lost · 10 breakdowns · down on 50 of 50 days 96%
21. 21Skye's Helicopter Heroes13h 58m lost · 25 breakdowns · down on 24 of 50 days 96.5%
22. 22Barrel Bail Out!13h 47m lost · 22 breakdowns · down on 50 of 50 days 96.5%
23. 23Tiny Truckers13h 12m lost · 24 breakdowns · down on 50 of 50 days 96.6%
24. 24Seastorm12h 32m lost · 22 breakdowns · down on 50 of 50 days 96.7%
25. 25Room on the Broom - A Magical Journey10h 44m lost · 17 breakdowns · down on 32 of 50 days 97.2%
26. 26Blue Barnacle9h 52m lost · 20 breakdowns · down on 50 of 50 days 97.2%
27. 27Canopy Capers8h 43m lost · 2 breakdowns · down on 50 of 50 days 97.3%
28. 28Sea Dragons9h 34m lost · 13 breakdowns · down on 50 of 50 days 97.4%
29. 29Marshall's Firetruck Rescue9h 7m lost · 19 breakdowns · down on 22 of 50 days 97.5%
30. 30Tomb Blaster8h 28m lost · 9 breakdowns · down on 50 of 50 days 97.7%
31. 31Chase's Mountain Mission6h 34m lost · 19 breakdowns · down on 23 of 50 days 98.3%

Breakdowns cluster at 3pm, with 155 of the 882 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 208 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 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 13 Aug, when 25.9% of the park's ride hours were lost and 30 of 31 rides went down at some point.