Jamie Moyer sat by his locker Tuesday afternoon, looking through wire-rim glasses at his composition book. It includes copious notes, reminders of how he wants to attack hitters.

Until two years ago, Moyer studied tendencies on VCR tapes (kids, ask your parents). He made his major-league debut when Ferris Bueller was in theaters and has rarely taken a day off since during the past 25 years.

“I can’t even imagine playing that long,” outfielder Carlos Gonzalez said. “It’s amazing.”

At this point, Moyer is easier to appreciate than explain. On a cool, windy night at Coors Field, the left-hander walked out to Led Zeppelin and delivered a Classic Rock performance. Moyer became the oldest pitcher to win a major-league game at 49 years, 150 days in a 5-3 win over the Padres.

“I didn’t think about this day because I thought it would be unfair to my teammates and the game,” said Moyer, whose entire family, save for a son playing college baseball, witnessed his outing. “To me, it was more important that I won for this team.”

While his signing was viewed as a novelty act, Moyer has been the Rockies’ best starting pitcher this season. He didn’t walk clumsily into history against San Diego, instead embracing it with pitches on the corners and at all different speeds. Moyer worked seven innings, allowing no earned runs on six hits. His lone strikeout victim was Padres center fielder Cameron Maybin, who swung so hard he fell to his knees in the sixth inning.

The Brooklyn Dodgers’ Jack Quinn was the previous oldest pitcher to win a game, topping the St. Louis Cardinals in 1932 at 49 years, 70 days.

“I kind of wish I was a baseball historian, and I am a little embarrassed that I don’t know more about it,” Moyer said. “To have my name mentioned with the greats of the past is special.”

The Rockies’ first two weeks have been disappointing, if not puzzling. Moyer was supposed to reveal his fragility, yet he’s been the most reliable cog in the rotation in his three starts.

The defense, meanwhile, has been volatile, committing seven errors in his outings. Reigning Gold Glover Troy Tulowitzki created cause for alarm, turning in his fourth career two-error game, and second in four nights. He threw wildly in the third inning, but it was his inability to handle Andy Parino’s routine groundball in the sixth that threatened Moyer’s bid at immortality.

Following Tulo’s gaffe, the Padres shaved the deficit to 3-2 on a sacrifice fly. If Moyer was going to win, it was going to be on him.

With the tying run on third, he promptly lured Jeremy Hermida into a weak swing on a cut-fastball at catcher Wilin Rosario’s direction, extinguishing the rally.

This was vintage Moyer. And that’s saying something for a guy who has thrown more than 58,000 pitches. Baseball scouts armed with stopwatches and radar guns prefer pitchers bigger and stronger. The radar gun becomes the résumé. Moyer, as said before, is a raider of a lost art. He topped out at 79 miles per hour on his fastball and shrewdly blended in a 27 changeups and four curveballs.

“Jamie Moyer won this game, make no mistake about it,” outfielder Michael Cuddyer said. “He earned every bit of this. And we are thrilled for him.”

Troy E. Renck: 303-954-1294 or trenck@denverpost.com