Jack Eugene Sprague (born August 8, 1964) is an American former stock car racing driver who has competed in all of NASCAR's three top divisions, most notably in the NASCAR Craftsman Truck Series, where he won series championships in 1997, 1999 and 2001.

Sprague was born in Spring Lake, Michigan, and began racing street stock cars at local short tracks.

Eventually, he won the NASCAR Winston Racing Series championship at Concord Motorsports Park.

Sprague finished first in the inaugural race of the NASCAR Sportsman Division at Charlotte Motor Speedway in 1989,[1] but was disqualified in post-race inspection, giving the win to Tim Bender.

24 Quaker State-sponsored truck owned by Hendrick, winning his first race at Phoenix, followed up by back-to-back victories at Nazareth Speedway and The Milwaukee Mile.

He led two laps and finished 23rd in his debut at Phoenix, but wrecked the following week at Atlanta Motor Speedway.

In addition, he returned to the Cup series, subbing for Ricky Craven at Bristol Motor Speedway, but finished 40th after a wreck.

Despite winning the Truck Series championship, Quaker State did not return as Sprague's primary sponsor, forcing him to start 1998 unsponsored.

40 Channellock-sponsored Chevy for Doug Taylor at Watkins Glen International, finishing sixth.

He also drove at Watkins Glen in a Terry Labonte-owned car, finishing twelfth, and attempted the Exide NASCAR Select Batteries 400 for Tyler Jet Motorsports, but failed to qualify.

In 2001, NetZero became his primary sponsor, and he won seven poles and four races, and took home his third championship trophy.

He won his first career Busch race at Nashville Superspeedway as well as leading the points during the season, before finishing fifth in the final standings.

0 with a NetZero sponsorship for 2003, signing Sprague to compete for Winston Cup Rookie of the Year honors.

Sprague started the 2007 season in the Craftsman Truck Series with a win in the Chevy Silverado HD 250 at the Daytona International Speedway.

This, combined with Con-way's departure at the end of the season, led Sprague to leave Wyler for Kevin Harvick Incorporated where he drove the No.

[3] It was also rumored that Sprague had struck a deal with Randy Moss Motorsports to return to the series in 2012,[3] though both deals apparently did not materialize as RMM's equipment was purchased by crew chief Richie Wauters to form his own team, Wauters Motorsports.