DENVER -- That 474-foot home run Giancarlo Stanton hit Friday at Coors Field?

Strike that.

ESPN’s Home Run Tracker measured the “true distance” of the mammoth blast — the distance the ball would have gone had it traveled unimpeded to playing field level — at 494 feet, making it the longest home run hit in the majors in three seasons.

“And that was with the wind blowing in,” marveled one of Stanton’s teammates, Austin Kearns.

Stanton’s bomb off Rockies reliever Josh Roenicke in the top of the sixth landed a few rows from the top of the lower-deck bleachers in center. The folks at Coors originally estimated the distance to be 474 feet.

“I knew it right out of the hand,” Roenicke told The Denver Post. “And, with his bombs, you just have to turn around and watch it.”

Home Run Tracker has been keeping measurements since 2006. The last time anyone hit a ball as far as Stanton’s: Oct. 2, 2009, when Cincinnati’s Wladmir Balentien hit one 495 feet at Great American Ballpark.

No Marlin has ever hit one further, according to the site. Reggie Abercrombie had held the team mark with his 485-foot shot at Great American in 2006. According to the team’s media guide, the longest home run ever hit by a Marlin at Sun Life Stadium was Derrek Lee’s 482-foot blast there in 2000.

“It doesn’t surprise me at all when Stanton hits the ball that far,” said Jose Reyes, who hit a three-run homer in Friday’s game that barely cleared the fence in left. “The kind of power he has is unbelievable. I don’t think anyone in the big leagues hits the ball harder than Giancarlo.”

Said Marlins manager Ozzie Guillen of Stanton’s tape-measure shot: “That was a joke. If he that ball in the air, that ball would have disappeared. That ball [Stanton hit] was a line drive. When this kid puts the barrel of the bat on the ball, it’s pretty dramatic.”

Stanton said he likes the ivy-covered wall that serves as the hitter’s eye at Coors, as well as at Citizens Bank Park in Philadelphia.

But he downplayed his mighty blast, saying “a homer is a homer.”

“As I recall, they’re all worth the same at all parks,” he said. “Jose’s scraped the wall. His was good for three runs. Mine went as far as you want to say, and it was worth one run.”

One and out

The final episode of “The Franchise” on Showtime will air Wednesday. Originally, the series was scheduled to run for eight episodes and end on Aug. 29. But a special preview that focused on the Fidel Castro flap involving Ozzie Guillen is being counted toward the total.

“There was an option to do more,” said Marlins president David Samson, “but given the state of our season, it was decided that the original eight would suffice.”

Bonifacio back?

Injured outfielder Emilio Bonifacio could rejoin the Marlins as early as Sunday when the Marlins close out their series with the Rockies. But Guillen said it was also possible the team could wait to Monday in Arizona to activate Bonifacio — along with infielder Donnie Murphy — from the disabled list.

• Guillen said Greg Dobbs (oblique strain) is “very, very sore” and would like to rest him the rest of the Colorado series. Outfielder Justin Ruggiano (oblique and back) took batting practice Saturday and could return to the lineup on Sunday.

Upcoming

•  Sunday: Marlins RHP Josh Johnson (7-9, 3.73) at Colorado Rockies LHP Drew Pomeranz (1-7, 5.04), 3:10 p.m., Coors Field.

•  Monday: Marlins LHP Mark Buehrle (10-11, 3.74) at Arizona Diamondbacks LHP Joe Saunders (6-9, 3.70), 9:40 p.m., Chase Field.

•  Scouting report: Josh Johnson has gone 2-4 with a 4.73 ERA in games started this season on the road compared to a 5-5 record and 3.06 ERA in games he’s pitched at Marlins Park.