Can-Am Duel — qualifying races that set the Daytona 500 starting grid

How the Duels work

Qualifying for the Daytona 500 combines single-car timed laps and the Duel races. The two fastest cars in timed qualifying earn the front row positions for the 500. The remainder of the field is set by the finishing order in the two Duel races: drivers are split into two groups, with the results of the first Duel filling the odd-numbered starting positions (1st, 3rd, 5th, etc.) and the second Duel filling the even-numbered positions (2nd, 4th, 6th, etc.). Each driver competes in one of the two races, and the Duels typically run a short distance compared with the 500, producing intense, pack-style competition.

Format and practical effects

• Each Duel is a sprint that emphasizes drafting, track position and short-term strategy rather than long-run tire management.
• Because the Duels determine much of the Daytona 500 grid, they serve both as a qualification mechanism and as a final tune-up for teams to test drafting lines and pit strategies under race conditions.
• Rules affecting guaranteed entries, provisionals and team charters have influenced how many cars must rely on Duel performance to make the 500; these administrative details have evolved over time.

History and naming

The qualifying races at Daytona have existed in various forms for decades and have been known by several names as title sponsors changed. They were long called the "Twin 125s" when run over a set number of laps, and became widely known as the Duels when sponsorship names shifted. The event is traditionally part of NASCAR’s Speedweeks and has been run on or near the Thursday before the Daytona 500, though specific scheduling has varied across different seasons.

Significance and strategy

Beyond setting the grid, the Duels are important because Daytona is a superspeedway where drafting and pack racing dominate. Teams use the Duels to practice cooperative drafting arrangements, try alternative setups and assess how their cars behave in close quarters. Drivers must balance the desire to gain a strong starting spot with the need to avoid crashes that could damage equipment before the Daytona 500.

Notable distinctions

1. The Duels are not typical points-paying races in the way other events are; their key function is grid determination for the Daytona 500.
2. Starting the Daytona 500 is sometimes decided by Duel outcomes for teams that do not have guaranteed entry, making these races high-stakes for smaller or non-chartered teams.
3. Because Daytona uses special aerodynamic and engine restrictions compared with many other tracks, the Duels feature pack dynamics distinct from single-car qualifying.

For fans and teams alike, the Can-Am Duel remains a highlight of Speedweeks: compact, unpredictable races that blend qualification with a preview of the high-speed, strategic chaos that defines the Daytona 500.