Overall with Roush Racing, Martin won 35 career NASCAR Cup Series races and finished second in the Cup Series point standings four times (1990, 1994, 1998, and 2002).
While racing for Roush in 1990, Martin came his closest to winning a championship.
A 46-point penalty at Richmond, for using an illegal (but non-performance enhancing) carburetor spacer, caused him to lose to Dale Earnhardt by 26 points in the final standings.
During this time, Martin also won five IROC titles (1994, 1996, 1997, 1998, and 2005) and 13 races, both records for that series.

Martin announced he would cut back from 'full-time' Cup Series racing after the 2005 season, dubbing the season the "Salute to You" tour as a thank you to his fans.
Martin won the Nextel Challenge in a 'Retro 93' paint scheme, picked up his final win with Roush at Kansas and again made the Chase for the Cup with a ninth-place in the standings at the end of the year.
In a tribute to Martin's career at Roush, the team ran four throwback retro schemes in 2005, that celebrated paint schemes from 1981, 1988–89, 1990–91, and 1993.

In June 2005, it was announced that Jamie McMurray would replace Martin in the No.
6 car in 2006.
 However, after the departure of Kurt Busch in 2005, Roush was left without a driver for the No.
6 car in 2006.
 Martin later agreed to come back and drive for the 2006 season.
Ultimately, it was announced that McMurray would be released from his contract at Chip Ganassi Racing one year early and would take over for Busch, who was dismissed from the Roush organization prior to the end of the 2005 season.
David Ragan was announced as Martin's replacement in the No.
6 for 2007.

In 2006, Martin competed in 14 of 25 races in the Truck Series.
He won 6 times, including the opener at Daytona, and recorded 12 top-ten finishes.
Overall with Roush Racing, Martin won 35 career NASCAR Cup Series races and finished second in the Cup Series point standings four times (1990, 1994, 1998, and 2002). While racing for Roush in 1990, Martin came his closest to winning a championship. A 46-point penalty at Richmond, for using an illegal (but non-performance enhancing) carburetor spacer, caused him to lose to Dale Earnhardt by 26 points in the final standings. During this time, Martin also won five IROC titles (1994, 1996, 1997, 1998, and 2005) and 13 races, both records for that series.
Martin announced he would cut back from 'full-time' Cup Series racing after the 2005 season, dubbing the season the "Salute to You" tour as a thank you to his fans. Martin won the Nextel Challenge in a 'Retro 93' paint scheme, picked up his final win with Roush at Kansas and again made the Chase for the Cup with a ninth-place in the standings at the end of the year. In a tribute to Martin's career at Roush, the team ran four throwback retro schemes in 2005, that celebrated paint schemes from 1981, 1988–89, 1990–91, and 1993.
In June 2005, it was announced that Jamie McMurray would replace Martin in the No. 6 car in 2006.  However, after the departure of Kurt Busch in 2005, Roush was left without a driver for the No. 6 car in 2006.  Martin later agreed to come back and drive for the 2006 season. Ultimately, it was announced that McMurray would be released from his contract at Chip Ganassi Racing one year early and would take over for Busch, who was dismissed from the Roush organization prior to the end of the 2005 season. David Ragan was announced as Martin's replacement in the No. 6 for 2007.
In 2006, Martin competed in 14 of 25 races in the Truck Series. He won 6 times, including the opener at Daytona, and recorded 12 top-ten finishes.
Mark Martin