Ride reliability data, rankings, and downtime reports for US theme parks. Updated every 5 minutes.
Est. 2025

US THEME PARK
HALL OF SHAME

Six Flags Discovery Kingdom

Six Flags Discovery Kingdom

Vallejo, California
Reliability Grade
B
Rides Tracked
32
Overview Reliability Breakdowns Schedule
Reliability Grade
B
Rides Tracked
32
Avg Uptime
63.2 %
Worst Ride
Acme Fun Factory

Park Performance Metrics — Last Month

Ride Breakdown Contributions — Last Month

Ride Tier Shame ContributionShame DowntimeDown
Acme Fun Factory 2 0.3h 0.2h
Air Penguins 3 1.4h 1.4h
Ark 2 3.9h 2.0h
BATMAN: The Ride 1 8.1h 2.7h
Boomerang Coast-to-Coaster 2 9.8h 4.9h
Cobra 2 5.0h 2.5h
Congo Queen 2 5.5h 2.7h
Elmer’s Weather Balloon Service 3 0.1h 0.1h
Kong 1 5.1h 1.7h
Medusa 1 17.4h 5.8h
Monsoon Falls 2 3.3h 1.6h
Nairobi’s Look Out Balloons 3 3.0h 3.0h
Road Runner Express 2 5.1h 2.6h
Rock Wall Climbing Challenge 3 0.1h 0.1h
Safari Jeep Tours 2 4.7h 2.4h
Scat-A-Bout 3 0.6h 0.6h
Seaside Railway 3 1.4h 1.4h
Sidewinder Safari 2 5.8h 2.9h
SkyScreamer 2 1.5h 0.8h
SUPERMAN Ultimate Flight 1 7.7h 2.5h
THE FLASH Vertical Velocity 1 17.9h 6.0h
THE JOKER 1 27.6h 9.2h
Thrilla Gorilla 2 1.0h 0.5h
Wave Swinger 3 16.0h 16.0h
WONDER WOMAN Lasso of Truth 1 13.8h 4.6h

Park Information

Location Vallejo, California
Operator Six Flags
Timezone America/Los_Angeles
Rides Tracked 32

Ride Tier Distribution

Classification of rides by importance and popularity

Tier 1 7 rides
Major E-ticket attractions
Tier 2 15 rides
Popular attractions
Tier 3 12 rides
Standard attractions

Shame Score Breakdown — Last Month

0.8
Shame Score (0-10 scale)
How It's Calculated
Shame Score = Sum of Down Ride Weights Total Park Weight × 10
Rides are weighted by tier: Flagship (Tier 1) rides count 3×, Major (Tier 2) rides 2×, and Standard (Tier 3) rides 1×. The score reflects how much ride capacity is lost to breakdowns.
78.1h Total Downtime
166.2h Weighted Downtime
25 Rides Affected
DATA SOURCE
Live data powered by ThemeParks.wiki Open-source API providing live wait times & ride status for 50+ parks worldwide
View the open-source project on GitHub