Connor Zilisch Wins NASCAR Xfinity Portland Race

The 2025 NASCAR Xfinity Series race at Portland International Raceway features significant changes in both qualifying and pit stop procedures. Connor Zilisch continued his dominant season by winning the Pacific Office Automation 147, marking his eighth victory of the year and tenth in his career, with multiple rookie contenders finishing in the top six. The qualifying format for the Portland race is split into Groups A and B, emphasizing strategic adaptation to the track's unique challenges, including its twists, turns, and elevation changes. Due to Portland being a standalone event, NASCAR implemented non-competitive pit stop rules to reduce costs and level the playing field, freezing the field's running order during cautions and stage breaks. Teams cannot add fuel during random cautions and must perform tire changes and fueling separately, with a minimum pit stop time of 63 seconds for green-flag stops, except in cases of unscheduled flat tire repairs. These adjustments aim to ensure safety, fairness, and strategic consistency, making the Portland race a critical and unique moment in the Xfinity Series schedule.