1988 First Union 400

The 1988 First Union 400 was the seventh stock car race of the 1988 NASCAR Winston Cup Series season and the 38th iteration of the event. The race was held on Sunday, April 17, 1988, before an audience of 33,000 in North Wilkesboro, North Carolina at the North Wilkesboro Speedway, a 0.625 mi oval short track. The race took the scheduled 400 laps to complete. Taking advantage of a misfortunate Dale Earnhardt, who had suffered a leaking tire late in the race, Junior Johnson & Associates driver Terry Labonte would manage to pass for the lead with 13 laps left in the race, maintaining the lead to take the victory. The victory was Labonte's ninth career NASCAR Winston Cup Series victory and his only victory of the season. To fill out the top three, King Racing driver Ricky Rudd and the aforementioned Dale Earnhardt would finish second and third, respectively.

Background
North Wilkesboro Speedway is a short oval racetrack located on U.S. Route 421, about five miles east of the town of North Wilkesboro, North Carolina, or 80 miles north of Charlotte. It measures 0.625 mi and features a unique uphill backstretch and downhill frontstretch. It has previously held races in NASCAR's top three series, including 93 Winston Cup Series races. The track, a NASCAR original, operated from 1949, NASCAR's inception, until the track's original closure in 1996. The speedway briefly reopened in 2010 and hosted several stock car series races before closing again in the spring of 2011. It was re-opened in August 2022 for grassroots racing.

Entry list

 * (R) denotes rookie driver.

Qualifying
Qualifying was split into two rounds. The first round was held on Friday, April 14, at 3:00 pm EST. Each driver would have one lap to set a time. During the first round, the top 10 drivers in the round would be guaranteed a starting spot in the race. If a driver was not able to guarantee a spot in the first round, they had the option to scrub their time from the first round and try and run a faster lap time in a second round qualifying run, held on Saturday, April 15, at 12:15 pm EST. As with the first round, each driver would have one lap to set a time. For this specific race, positions 11-30 would be decided on time, and depending on who needed it, a select amount of positions were given to cars who had not otherwise qualified but were high enough in owner's points; up to two were given.

Terry Labonte, driving for Junior Johnson & Associates, would win the pole, setting a time of 19.178 and an average speed of 117.322 mph in the first round.

Ten drivers would fail to qualify.

Standings after the race

 * Drivers' Championship standings
 * Note: Only the first 10 positions are included for the driver standings.