According to the Elias Sports Bureau, at 26 years, 256 days, Thursday's game will feature the third-largest age difference all-time between two opposing starters, and the largest since 1965.
Moyer is already the second-oldest pitcher to start a Major League game behind Satchel Paige, who started a game at 59 years old in 1965. The veteran southpaw heads into his next start looking to build upon a steady showing in his Rockies debut. Moyer lasted five innings, giving up four runs (three earned) on five hits against the Astros.
"Because I've always felt that if somebody can explain something differently, or give me information differently, or give me a different viewpoint or a different perspective, it may make me a better player," Moyer said following his last start. "If I come here on a daily basis and try to become a better person or a better player, I'm doing the right thing."
Despite accumulating 4,025 1/3 innings over 687 career games at 49 different ballparks, Thursday will only be Moyer's third appearance in Coors Field. His last appearance there came in 2007 and before that in 2001. Moyer is 0-2 with a 9.00 ERA in 11 innings at his new home ballpark.
Squaring off against Moyer will be Bumgarner, whose first outing of 2012 was a rough one. Bumgarner took the loss against Arizona on Saturday, when he allowed four earned runs on seven hits over four innings. However, the young southpaw can lean on his strong history against the Rockies.
Bumgarner went 2-1 with a 0.67 ERA in four starts against Colorado last season, allowing two earned runs over 27 innings. He is 1-2 with a 3.50 ERA in three career starts at Coors Field.
Giants: Melky making an early impression
Melky Cabrera, acquired during the offseason from Kansas City for Jonathan Sanchez, has made early waves with his new team. After a 2-for-4 night Wednesday, Cabrera is now hitting .364 (8-for-22) with one home run, three RBIs and six runs scored. However, the outfielder is still looking for his first hit against Moyer. Cabrera is 0-for-7 with one walk lifetime against the left-hander.
Rockies: Was the humidor on?
Wednesday night's outburst may leave fans wondering if the Coors Field humidor is operational. The Rockies plated 17 runs, which surpassed their highest totals from 2011 when they twice scored 15 runs -- May 28 against the Cardinals and Aug. 6 against the Nationals. The Rockies went undefeated (9-0) when scoring double-digits at home in 2011
Michael Cuddyer's National League tenure is off to a good start. After 11 years in the Junior Circuit with the Twins, Cuddyer is off to a .400 (8-for-20) start with one home run, four RBIs and five doubles with the Rockies.
The Giants have homered in each of their five games. They hit back-to-back homers for the first time this season Wednesday when Nate Schierholtz and Brandon Crawford led off the fourth with homers.