Alfred Unser

Unser was born in Albuquerque, New Mexico, the youngest of four sons. Beginning in 1926, his father and uncles Louis and Joe competed in the Pikes Peak International Hill Climb in Colorado. Joe Unser became the first family member to lose his life to the sport, killed while test-driving an FWD Coleman Special on the Denver highway in 1929.

His oldest brother Jerry became the first Unser to drive at the Indianapolis Motor Speedway, qualifying 23rd and finishing 31st in 1958, before being killed by injuries from a fiery practice crash the following year. Middle brother Bobby Unser won the Indianapolis 500 three times, first in 1968. Son Al Unser Jr. drove his first Indy 500 in 1983 and won twice.

Unser married Wanda Jesperson in 1958; they had three children — Alfred Jr., Mary, and Deborah. Deborah was killed in a dune buggy accident in 1982. Al and Wanda divorced in 1971. He married Karen Sue Barnes in 1977; they divorced in 1988. His mother Mary, known as "Mom" Unser, was a popular fixture at the track — she hosted an annual chili cookout for participants in the garage area — and died on December 18, 1975.

Unser began racing in 1957 at age 18, competing primarily in modified roadsters, sprint cars, and midgets. He first raced the Indianapolis 500 in 1965, finishing ninth. He competed in USAC's Stock Car division in 1967 and was the series Rookie of the Year.

Unser's breakout year came in 1970 when he joined Vel's Parnelli Jones Racing. He won the Indianapolis 500 that year, leading all but ten of the 200 laps at an average speed of 155.749 mph (250.654 km/h). He won a record ten times on oval, road, and dirt tracks that season to capture the United States Auto Club national championship.

In 1971, still with Vel's Parnelli Jones, Unser won the Indianapolis 500 from fifth on the grid at an average speed of 157.735 mph (253.850 km/h), holding off Peter Revson's McLaren. He became the only driver to date to win the race on his birthday — his 32nd. His bid for a third consecutive win in 1972 was thwarted when he finished second to Mark Donohue.

Unser remained with the team through 1977. After several years of diminished competitiveness following chassis changes and a failed Formula One bid, the team regained form by 1977, though Unser announced his departure for Jim Hall Racing at year's end. He later said disagreements with Parnelli Jones and partners over team direction prompted the move, though he maintained a friendship with Jones.

Despite his Chaparral Lola being considered a long-shot entry, Unser won the 1978 Indianapolis 500 from fifth on the grid. He moved to the front for the first time on lap 75. He and Danny Ongais traded the lead for 75 laps before Ongais suffered an engine failure on lap 150, giving Unser a 35-second lead. A right front-wing misalignment from a pit-stop incident caused his lead to shrink over the final twenty laps, but he won by nine seconds. His average speed of 161.363 mph (259.689 km/h) was at the time the second fastest ever run.

After a winless three-year stint with the Longhorn Racing Team owned by Bobby Hillin Sr. — which Unser described as his most joyful experience as a driver before his Penske years — the team folded, leaving him without a ride.

Unser joined Team Penske in 1983. At the 1983 Indianapolis 500 he led 61 laps. With fewer than twenty laps to go, Tom Sneva — who had led the most laps — passed Al Unser Jr. (then several laps down) and retook the lead from Al Sr. with nine laps remaining, going on to win by eleven seconds. (Al Unser Jr. was later penalised two laps for his actions and for passing two cars under caution.) Unser won the 1983 and 1985 IndyCar championships by combining race wins with several top-five finishes. In 1986, Penske concentrated attention on Rick Mears as he recovered from serious injuries, reducing Unser's schedule.

In 1987, Penske's full slate comprised Mears, Danny Sullivan, and Danny Ongais. Unser was dropped and entered May without a ride. He remained at the track to assist his son Al Jr. (driving for Shierson Racing) with handling problems. When Ongais suffered a serious concussion in a practice crash and was declared unfit to drive, Penske hired Unser to fill the third entry.

Penske's new PC-16 chassis had been uncompetitive; Roger Penske instead equipped Mears and Sullivan with 1986 March–Ilmor Chevrolet machines. For Unser, a 1986 March–Cosworth was retrieved from a Penske Racing display at a Sheraton hotel in Reading, Pennsylvania, and hurriedly prepared. Unser qualified easily on the third day of time trials.

Starting 20th, Unser worked steadily forward as front-runners including the Newman-Haas entry of Mario Andretti retired. He took the lead on lap 183 after Roberto Guerrero stalled on his final pit stop and won by 4.5 seconds at an average speed of 162.175 mph (260.995 km/h) — five days before his 48th birthday. The victory tied Foyt as the winningest Indianapolis 500 driver and broke Bobby Unser's record as the oldest winner.

Unser rode the wave of the victory to race at Michigan, Pocono, and the Marlboro Challenge for Penske in 1987. He returned to Penske in 1988 and 1989 for the three 500-mile races. At the 1988 Pocono 500 he led a race-high 79 laps before suffering ignition failure with 28 laps remaining.

After reorganisation at Team Penske in 1990, Unser lost his part-time ride and joined the Patrick Racing Alfa Romeo team. After finishing 13th at Indianapolis, he returned for the Michigan 500, where a severe practice crash — breaking his right femur, right collarbone, and three upper right ribs — caused him to quit the team.

He sat out the 1991 Indianapolis 500, the first time since 1969. In 1992, after Nelson Piquet was injured in a serious practice crash, Team Menard hired Unser as a replacement. He finished third while Al Unser Jr. won the race — Team Menard's best Indy 500 finish and the best result for the Buick Indy engine. Later that year, Unser substituted for the injured Mears at Nazareth in what proved his final CART start.

At the 1993 Indianapolis 500 for King Racing, Unser led fifteen laps to extend his career laps-led record, finishing twelfth. In 1994, attempting to qualify for what would have been his 28th Indianapolis 500 with the underfunded Arizona Motorsports team, he waved off after a poor qualifying lap and announced his retirement on May 17, 1994 — his son winning the race on his father's 55th birthday.

Outside open-wheel racing, Unser was a semi-regular in IROC, winning three races and the 1977–1978 championship. He also competed in NASCAR, starting five races — three in the late 1960s and two in 1986. His best finishes were a pair of fourths: at the 1968 Daytona 500 and the 1969 Motor Trend 500 at Riverside International Raceway. In 1987 he drove the Porsche Indy car at Laguna Seca but left the team after one race.

Unser led 644 laps at the Indianapolis 500, the second-highest total in the event's history. His eight 500-mile race wins include four at Indianapolis, two at Pocono (1976 and 1978), and two at Ontario (1977 and 1978). In 1971, he became the only driver to win the Indianapolis 500 on his birthday. He was the only person to have both a sibling (Bobby) and a child (Al Jr.) as fellow Indianapolis 500 winners. The Unser family has won the Indianapolis 500 a record nine times.

Indianapolis Motor Speedway Hall of Fame (1986)

Motorsports Hall of Fame of America (1991)

International Motorsports Hall of Fame (1998)

Pikes Peak Hill Climb Museum Hall of Fame (2020)

Unser and his family owned and operated the Unser Racing Museum in Albuquerque, New Mexico. The city dedicated Unser Boulevard — a north-south arterial road on the city's west side — in his honour, and ultimately took ownership of the property in May 2025.

Unser suffered from hereditary haemochromatosis, which contributed to a liver cancer diagnosis in 2004. He had a tumour and half of his liver removed in 2005 and continued to suffer from cancer for the next 17 years, dying at age 82 on December 9, 2021, in Chama, New Mexico.

This article is based solely on the supplied corpus. No external sources were consulted; claims that could not be substantiated against the corpus were omitted under the drop-the-claim rule.