Van Gisbergen, the three-time Australian Supercars champion making his Cup debut this weekend in the No. 91 Trackhouse Racing Chevrolet, set a blistering pace throughout the 50-minute session.<br>He remained at the top of the speed chart most of the practice and set his best average lap speed of 88.571 mph in the final minutes.<br>Cup veteran Denny Hamlin ended up second-fastest (88.262 mph) and ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/van-gisbergen-button-chicago-cup-practice/10490265/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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