SAN FRANCISCO -- The Giants announced Tuesday that Tim Lincecum and Madison Bumgarner will flip turns in the rotation during this week's three-game series with the D-backs, allowing Lincecum to remain on his regular five days' rest.
Lincecum now will throw Wednesday, while Bumgarner will pitch in Thursday's series finale.
The move also sets up Lincecum to be available in a possible one-game tiebreaker game, or potentially throw on three days' rest in Sunday's regular-season finale against the Padres, whom the Giants currently have a one-game lead over in the National League West.
The Giants and Padres close the season with a three-game series Friday through Sunday at AT&T Park.
"We're just keeping Timmy on his regular rest," Giants manager Bruce Bochy said. "He's pitching on his fifth day, [and we're giving] Madison a couple extra days, so that's our thinking. Down the road that does have Timmy available a little sooner, but we just wanted to keep our guy on every fifth day and give Madison a little break."
Bumgarner, a rookie left-hander, has thrown a career-high 188 2/3 innings this season between the Minors and Majors, but Bochy said the decision to switch the two had more to do with keeping Lincecum on regular rest.
Although the switch sets up nicely to throw Lincecum in a potential one-game playoff, Bochy said that wasn't the overlying factor.
"Probably not as much as you'd think," Bochy said. "We just wanted to keep Timmy on the fifth day. As we get down to that area, we'll have a better idea where we're at, and if we have to adjust we'll do it."