Atlanta 500 – NASCAR mandated smaller carburators beginning with this race. David Pearson spent 225 laps fighting to get back onto the lead lap and took his third win of the season, beating Parsons. Yarborough finished third, a lap down after making up three laps of a four-lap deficit.
Rebel 500 - Pearson ran down Buddy Baker in a race where his father Buck finished sixth. Bobby Allison and Darrell Waltrip were involved in a hard crash at Lap 80 while Petty and Yarborough fell out with engine failures.
Winston 500 – Buddy Baker qualified twelfth, a run so disappointing his Bud Moore team drove back to their Spartanburg, SC shop to overhaul the engine before returning to Talladega for the race. Baker nonetheless became the first driver to win a 500-miler in less than three hours, while an early-race crash with Pearson, Dave Marcis, and Dick Brooks eliminated Benny Parsons and cost him the point lead (and a $10,000 bonus awarded to the driver who accumulated the most points per third of the season) to runner-up Yarborough.
Mason-Dixon 500Benny Parsons suffered nose damage in a mid-race crash but his Chevrolet ran stronger after the wreck; he stormed to lead 161 of the race's last 169 laps and beat Pearson by 25 seconds. Cale Yarborough led 243 laps but was penalized a lap on a pitstop, then fell out with engine failure; he thus lost the point lead to Parsons.
Michigan 400 - Cale Yarborough dominated until he lost power due to a blown head gasket (still finishing second) and Pearson took his seventh win of the season. Cale's runner-up finish regained him the point lead as Benny Parsons lost 21 laps and finished 19th.
Firecracker 400 - Cale Yarborough edged Pearson for his first Daytona win since 1968.
Nashville 420 - Neil Bonnett drove most the race for pole-sitter Bobby Allison; days before Allison was injured in a bad crash at Elko, MN and had to give way to Bonnett after the opening lap; the Penske #2 finished a distant seventh. Buddy Baker led 220 laps but fell out while leading with 90 laps to go; Benny Parsons took over and beat Richard Petty and Darrell Waltrip. Waltrip's third place at his home track came following the hiring by DiGard of engine builder Marion "Ducky" Newman, who'd left Bud Moore's team in a salary dispute.
Purolator 500 – NASCAR allowed teams to use larger carburators again beginning with Pocono. The lead changed 47 times as Pearson's blown tire coming to the white flag gave Petty only his second win of the season. Benny Parsons edged Pearson for third while pole-sitter Cale Yarborough blew his engine halfway through; Junior Johnson's team changed engines in the garage in 33 minutes and Yarborough finished 25th; he lost the point lead to Parsons.
Talladega 500 – Dave Marcis took his only Talladega win and the first for crew chief Harry Hyde. The lead changed a season-high 57 times. Benny Parsons blew his engine after 39 laps while Cale suffered another engine failure, yet Junior Johnson's team changed engines mid-race again, this time in 20 minutes. Richard Petty blew his engine after taking the lead in the final 20 laps; with this the combination of DNFs Cale thus took the point lead for what proved to be the final time. Darrell Waltrip blew his engine and following the race DiGard fired team manager Mario Rossi and engine builders "Stump" Davis and Keith Harlan; the team hired Robert Yates to assist Marion Newman.
Southern 500 – Pearson took the one race he had sought his entire career. A big wreck occurred after Buddy Baker blew up and spun; behind him Skip Manning spun and was hit in the left side door by Joe Frasson. Cale Yarborough hit a guardrail post on pit road and it bent the rearend assembly; Richard Childress helped the Junior Johnson crew replace the assembly and Cale finished 23rd; Richard Petty finished second despite hammering the wall off the track's infamous fourth turn and cut Cale's point lead to 29.
Capital City 400 - Bobby Allison made his most determined bid for a win of the season, chasing Cale Yarborough and finished one length back at the finish. Cale increased his point lead over Petty to 44.
Delaware 500 - Cale Yarborough made up two laps on two separate occasions and won his second straight race.
Old Dominion 500 - Darrell Waltrip won the pole, his first with Robert Yates power, but could only finish second to Cale as rain cut short the 500-lapper at 340 laps.
Wilkes 400 - Yarborough won his fourth straight race and season-leading ninth overall.
National 500 - Donnie Allison surprised the field in a backup Hoss Ellington Monte Carlo; the engine measured a tick over the legal displacement in immediate post race inspection but after cooling down the engine was within limits. The win was Donnie's first in Grand National competition since 1971.
American 500 - Richard Petty took the win, only his third of the season. Lennie Pond finished second. Green flag pitstops became frequent as Petty spent a total of 125 seconds in the pits to Pond's 54 seconds.
LA Times 500 – Pearson led the final 121 laps and easily posted his eighth superspeedway win and tenth overall of the season. Yarborough clinched the season championship (his first and also the first for team owner Junior Johnson) by taking the green flag, only to fall out with transmission trouble after leading 68 laps. Bobby Allison blew his engine simultaneously with his brother Donnie and after the race told Roger Penske he was leaving the team.