Chessington World Of Adventures ride reliability

1. 1AMAZU: Treetop Adventure10d 17h lost · 2 breakdowns · down on 50 of 50 days 35.7%
2. 2River Rafts5d 22h lost · 52 breakdowns · down on 50 of 50 days 57.6%
3. 3Rattlesnake5d 9h lost · 17 breakdowns · down on 50 of 50 days 61.5%
4. 4Griffin's Galleon4d 22h lost · 34 breakdowns · down on 50 of 50 days 64.5%
5. 5Treetop Hoppers3d 10h lost · 31 breakdowns · down on 50 of 50 days 76.1%
6. 6Croc Drop3d 17h lost · 13 breakdowns · down on 50 of 50 days 78.4%
7. 7Tiger Rock2d 21h lost · 42 breakdowns · down on 50 of 50 days 82.6%
8. 8ZUFARI1d 18h lost · 24 breakdowns · down on 50 of 50 days 89.2%
9. 9Dragon's Fury1d 12h lost · 72 breakdowns · down on 50 of 50 days 89.9%
10. 10Vampire1d 12h lost · 44 breakdowns · down on 50 of 50 days 90.1%
11. 11Elmer's Flying Jumbos1d 6h lost · 62 breakdowns · down on 50 of 50 days 91.7%
12. 12Zuma's Hovercraft Adventure1d 3h lost · 53 breakdowns · down on 40 of 50 days 92.2%
13. 13Mandrill Mayhem1d 4h lost · 74 breakdowns · down on 40 of 50 days 92.4%
14. 14Trawler Trouble1d 1h lost · 37 breakdowns · down on 50 of 50 days 93.3%
15. 15Mamba Strike1d 1h lost · 23 breakdowns · down on 26 of 50 days 93.4%
16. 16Jungle Rangers21h 45m lost · 26 breakdowns · down on 50 of 50 days 94.4%
17. 17Adventure Tree Carousel18h 4m lost · 54 breakdowns · down on 50 of 50 days 95.5%
18. 18The Gruffalo River Ride Adventure15h 50m lost · 38 breakdowns · down on 34 of 50 days 95.7%
19. 19Skye's Helicopter Heroes16h 23m lost · 28 breakdowns · down on 25 of 50 days 95.9%
20. 20Canopy Capers14h 17m lost · 2 breakdowns · down on 50 of 50 days 95.9%
21. 21Ostrich Stampede15h 2m lost · 24 breakdowns · down on 22 of 50 days 96.1%
22. 22Dragon's Playhouse - Soft Play12h 44m lost · 9 breakdowns · down on 50 of 50 days 96.1%
23. 23Barrel Bail Out!13h 42m lost · 22 breakdowns · down on 50 of 50 days 96.5%
24. 24Tiny Truckers13h 30m lost · 25 breakdowns · down on 50 of 50 days 96.5%
25. 25Seastorm12h 34m lost · 22 breakdowns · down on 50 of 50 days 96.7%
26. 26Sea Dragons11h 39m lost · 13 breakdowns · down on 50 of 50 days 96.9%
27. 27Room on the Broom - A Magical Journey10h 19m lost · 17 breakdowns · down on 32 of 50 days 97.3%
28. 28Marshall's Firetruck Rescue9h 58m lost · 19 breakdowns · down on 21 of 50 days 97.3%
29. 29Blue Barnacle9h 13m lost · 18 breakdowns · down on 50 of 50 days 97.4%
30. 30Tomb Blaster7h 48m lost · 8 breakdowns · down on 50 of 50 days 97.8%
31. 31Chase's Mountain Mission6h 9m lost · 20 breakdowns · down on 23 of 50 days 98.4%

Breakdowns cluster at 3pm, with 162 of the 901 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 211 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.