Forecasts for Thursday thunderstorms forced the postponement of the Camp Barnes Benefit Stock Car Race at Georgetown (Del.) Speedway, the track announced this evening. The event, which includes a $5,500-to-win Super Late Model, was rescheduled for Aug. 26:

Among other schedule changes in Late Model specials and touring events:

• Citing “unforeseen circumstances,” the Jail Breaker Topless Outlaw Series announced the cancellation of Aug. 9’s $4,400-to-win Dave Bilbrey Memorial at Crossville (Tenn.) Speedway.

• The Karl Chevrolet Pro Late Model Tour has added a double-feature program Aug. 10 at Dubuque (Iowa) Speedway paying $2,000-to-win for each feature.

• 191 Speedway in Campton, Ky., has raised the purses for its Aug. 29-30 weekend on the Ultimate Heart of America Super Late Model Series. Features will pay $6,500- (Wincy Mayabb Memorial) and $7,000-to-win (Swift Silver 40).