"It's just a matter of when is it going to happen," Stewart told reporters at Delaware's Dover
Indeed, the 43-year-old Stewart entered the season having won at least one Cup race in each of his previous 15 years in the series.
That included winning at the one-mile Dover track a year ago, before Stewart suffered a broken right leg in a crash while racing sprint cars in Iowa in early August. The injury sidelined him for the rest of the year.
Stewart drives the No. 14 Chevrolet and co-owns his Cup team,
NASCAR implemented changes this year that put a premium on winning races, rather than accumulating points, in the first 26 races to qualify for its 10-race Chase for the Cup title playoff. The last race before the Chase starts is at Virginia's Richmond International Raceway on Sept. 6.