Trackhouse Racing teammates Shane van Gisbergen and Connor Zilisch are preparing to reignite their spirited competition in the Focused Health 250 NASCAR O’Reilly Auto Parts Series race at Circuit of the Americas. This much-anticipated event, happening Saturday at 3 p.m. ET, highlights the Trackhouse Racing rivalry O’Reilly fans have come to expect, as both drivers enter the weekend as leading favorites ahead of Sunday’s Cup Series contest.
Defending Winner Returns with Momentum
Connor Zilisch, last year’s triumphant driver, is eager to defend his title. At just 18 years old, he began the 2024 race from pole position and clinched victory over Cup Series star William Byron by a margin of 1.639 seconds, confirming his status as a rising force in the O’Reilly Auto Parts Series.
SVG and Zilisch’s Ongoing Rivalry
Shane van Gisbergen competed in three O’Reilly Auto Parts Series races last year, all during his Cup Series rookie season. Their rivalry intensified in Chicago, where van Gisbergen narrowly edged out Zilisch. At Sonoma Raceway, Zilisch responded with a win, finishing less than half a second ahead of van Gisbergen. Their third matchup at Watkins Glen proved dramatic, with contact in Turn 7 on Lap 65 sending van Gisbergen to 31st, while Zilisch fought through the chaos for another victory.
Zilisch’s Dominance Leads to Cup Promotion
Zilisch’s outstanding form continued in 2025, as he claimed a series-best ten O’Reilly Auto Parts Series wins while racing with JR Motorsports. This achievement earned him a well-deserved step up to the Cup Series with Trackhouse Racing for the new season. His rapid ascent is a testament to his skill and consistency on multiple circuits, including Sonoma Raceway, Watkins Glen, and the demanding Circuit of the Americas.
Circuit Changes Increase Passing Opportunities
NASCAR officials have once again chosen not to use the entire 3.426-mile Grand Prix track at COTA. Instead, the course is trimmed to 2.4 miles, eliminating the extended backstretch, which introduces more passing zones and heightens the excitement for drivers and fans alike.
“COTA is just super-fun, especially since they shortened the course,”
said Zilisch.
“I really enjoy the shortened course. It has created really good racing and has a short-track type feel to it now.”
— Connor Zilisch, Driver
“You don’t really have straightaways anymore, except for the front straightaway. It’s just so unique. You’ve got a new passing zone now with Turn 6A and that cut-through is a great passing zone. As a driver, you’re doing more, more often. You’re turning more, and you’re in a corner more often. It’s a lot of fun.”
— Connor Zilisch, Driver
Potential Challengers to the Trackhouse Duo
While the spotlight is firmly on Zilisch and van Gisbergen, series regular Sam Mayer has proven his capability at Circuit of the Americas with four top-10 finishes in as many starts and a best result of third last season. Mayer’s consistency at this venue marks him as a strong contender to disrupt the dominance expected from the Trackhouse partnership, showing the depth of competition in this high-stakes event.
What This Rivalry Means for the Series
The continued head-to-head battles between Zilisch and van Gisbergen aren’t just spectacles—they raise the competitive bar across the O’Reilly Auto Parts Series and energize both fans and fellow drivers. With upgrades to the COTA layout and a talented field eager to make their mark, the Focused Health 250 stands as a decisive moment in the 2025 racing season, promising thrilling action and potentially shifting the dynamics for the upcoming NASCAR Cup Series race.
