Joe Gibbs Racing's Denny Hamlin has given his verdict on the inaugural NASCAR In-Season Challenge, while suggesting how it could be improved in the future.

Is it finally Denny Hamlin's year? A tough pit call ends Chase Elliott's chances. It's Ty vs. Ty for $1 million. And more from Dover.

Chase Elliott overtakes teammate William Byron for the regular-season points lead; here are other playoff story lines to watch this week.

While the Cup Series race at Dover is on hold due to weather, earlier today, Denny Hamlin was not happy with Ty Dillon. Of course, Dillon is battling John Hunter Nemechek in the NASCAR In-Season Tournament,

Ty Dillon before the in-season NASCAR tournament was nothing more than an afterthought. The driver who wasn’t even as good as his brother. Now he’s the underdog fans can’t get enough of.

NASCAR star Denny Hamlin had a handful of X-rated messages for his rival Ty Dillon as the two battled at Dover Motor Speedway.

Meanwhile, Dover will serve as the semifinals of NASCAR's In-Season Challenge, where now just four drivers remain. No. 32 seed Ty Dillon continues his Cinderella run through the tournament and will be matched up with No. 12 seed John Hunter Nemechek, while No. 23 seed Tyler Reddick faces No. 6 seed Ty Gibbs on the other side of the bracket.

The NASCAR In-Season Tournament has reached its semifinal stage after three rounds of exhilarating action in Atlanta, Chicago, and Sonoma. The next round will go down at Dover Motor Speedway on Sunday.