Single rider lines at Disneyland and Disney California Adventure are designed to be faster than the standard standby line, but their efficiency depends entirely on the ride's configuration and the current "party mix" in the queue. These lines exist to fill "gap seats"—for example, if a ride vehicle has three seats and a party of two is boarding, a single rider is pulled to fill the third spot. On rides with high-capacity rows like Millennium Falcon: Smugglers Run or Radiator Springs Racers, the single rider line can often save you 40 to 60 minutes of waiting. However, there is a catch: you are split up from your group, and you have zero choice over your "role" or seat on the ride (e.g., you will almost always be the "Engineer" on the Falcon). Furthermore, if the standby line consists of many "even-numbered" groups, the single rider line may barely move at all. During peak 2026 holiday seasons, some single rider lines can actually become longer than the standby line if too many people try to use the "hack." Generally, if the posted standby wait is over 45 minutes, the single rider line is a high-value gamble for those who don't mind riding alone to save time.