The 29-year-old Chastain from Alva, Florida, rallied from an early pit road speeding penalty to overtake Erik Jones on the final lap through the tri-oval to claim his second career win in NASCAR's premier series.
The 23-year-old Gragson from Las Vegas stormed to the lead during the third of three overtime attempts before holding off Jeffrey Earnhardt to grab his first victory at Talladega.
“Someone pinch me because I’m ready to wake up," Jeffrey said, "but I guess I’ll wait 'til after we’re parked in Victory Lane before I decide to wake up.”
The NASCAR Cup Series and Xfinity Series travel to Talladega Superspeedway this weekend. The ARCA Menards Series will also complete Saturday afternoon in the General Tire 250.
The two-time Cup champion from Las Vegas, Nevada, benefitted from a final lap collision involving Tyler Reddick and Chase Briscoe to become the ninth different competitor to reach 60 victories in NASCAR's premier series.
The reigning NASCAR Camping World Truck Series champion persevered on a five-lap dash to the finish to cap off a dominant run with his first victory of the season and on Bristol's dirt course.
The NASCAR Cup Series and Camping World Truck Series travel to Bristol Motor Speedway this week for some dirt track racing under the lights while the Xfinity Series is off.
The 24-year-old Byron from Charlotte, North Carolina, led a race-high 212 of 403 and fended off Joey Logano during an overtime shootout to repeat as a Cup winner at the Paperclip-shaped short track.
The 20-year-old Day from Clovis, California, led 55 of 200 laps and rallied from an early pit road penalty to outduel Justin Allgaier and Jesse Love during a 10-lap shootout to notch back-to-back O'Reilly Auto Parts Series' victories in the Chase and be only seven points behind the points lead with four-scheduled events remaining.
Chase Briscoe and Christopher Bell battled to the line with the Indiana-native coming on top by mere inches to win consecutive races for the first time in his Cup Series career.
The two-time Southern 500 champion from Mitchell, Indiana, beat teammate Christopher Bell by 0.029 seconds for his second consecutive Cup Chase victory and be within 65 points of the points lead.
