Giants · Player

Buster Posey

Buster Posey
Position
C
Age
39
Pieces here
18

On the record

Called Shots →
Held upAug 31, 2026

San Francisco selects the contract of Bo Davidson on or before the end of the 2026 regular season.

Held upSep 2, 2026

Cesar Perdomo starts a game for the San Francisco Giants on or before the end of the 2026 regular season.

OpenSep 11, 2026

San Francisco's Opening Day 2027 active roster includes at least one position player, acquired after the end of the 2026 World Series, who stole 15 or more bases in the 2026 major league regular season.

OpenOct 9, 2026

Camilo Doval is on the San Francisco Giants' 40-man roster as MLB publishes it on December 2, 2026. RIGHT if he is listed, whether tendered, signed to a 2027 contract or extended. WRONG if he is absent by any route: non-tendered, designated, released, traded or claimed.

OpenOct 30, 2026

Between November 2 and November 30, 2026, the San Francisco Giants sign at least one pitcher who finished the 2026 season in another organization to a major league free-agent contract. RIGHT if MLB's transaction log shows such a signing dated in that window. WRONG if it shows none. Minor league contracts, re-signings of pitchers who finished 2026 in the Giants organization, trades, waiver claims and posted international players count for nothing.

Written about him

Posey starts the winter with the bullpen, and the rotation lost more
The 2027 Giants

Posey starts the winter with the bullpen, and the rotation lost more

At the season-end news conference on September 29, Buster Posey took the blame for the bullpen and said the club's offseason work starts there, with the rotation right behind it. The 2026 record explains why the bullpen is first in line: 16-29 in one-run games, and a relief corps whose strikeout-minus-walk rate beat only two clubs. The 2027 supply says the rotation has the bigger hole. Of 162 starts, 39 went to Robbie Ray and Tyler Mahle, both traded at the deadline, and 31 went to Trevor McDonald, Blade Tidwell and Carson Whisenhunt, whose elbows put their returns at late 2027 or 2028. The lineup the club intends to keep drew 449 walks, the fewest in the majors, and owes $451 million from 2027 on to Rafael Devers, Willy Adames and Matt Chapman. The same week, MLB Pipeline named San Francisco its Farm System of the Year. No take filed.

Andie TownsendOct 2, 20266 min read
The Giants Have Stolen 68, 68 And 69 Bases In Three Seasons, And Buster Posey Has Spent Two Of Them Asking For More
The bases

The Giants Have Stolen 68, 68 And 69 Bases In Three Seasons, And Buster Posey Has Spent Two Of Them Asking For More

San Francisco has stolen 69 bases in 147 games this season, after 68 in 162 games in 2025 and 68 in 162 games in 2024. Buster Posey, the club's president of baseball operations, told Susan Slusser of the San Francisco Chronicle this week that he has added running to the pitching and defense he has emphasized since taking the job, and that he has spent two years wanting that tone set. The season number is not what changed. The split inside it is: 27 steals in the first 85 games at a 69.2 percent success rate, then 42 in the next 62 at 80.8 percent. Since July 1 the Giants have stolen bases at 0.677 per game against a league rate of 0.668 over the same span, which ranks them twelfth of thirty after finishing 29th in each of the two previous seasons. Of the four Giants with nine or more steals, Luis Arraez was traded to Philadelphia on August 3 and Casey Schmitt is on the 60-day injured list with a torn meniscus. Jung Hoo Lee stole none in his first 56 games and twelve in his next 78. Fifty-eight major league players have stolen fifteen bases this season and no Giant has stolen more than twelve. Two takes filed.

Andie TownsendSep 11, 20265 min read
The Last Giants Team To Hand Out This Many Debuts Kept Exactly Half Of Them
April

The Last Giants Team To Hand Out This Many Debuts Kept Exactly Half Of Them

San Francisco has given fourteen players their major league debut in 2026, the most in any season since 2008 and the second-most in the twenty-two seasons from 2005 on, counted off the league's own full-season roster and debut dates. Buster Posey told the San Francisco Chronicle that the point of the last month is getting a look at players the club would not otherwise see. The 2008 club, which finished 72-90, handed out sixteen debuts and eight of those men played for San Francisco again the following year. Across ten previous debut classes the share who came back ranges from 44 percent to 100 percent, and neither the size of a class nor the age of the men in it separates the high years from the low ones. Two of this year's fourteen are already gone: Wilkin Ramos and Eddys Leonard, whose entire San Francisco career ran seven days from debut to designation. Turner Hill, 27, has taken more plate appearances than anyone else in the class since August 22. One take filed.

Grant LombardSep 1, 20265 min read
Yunior Marte's 40-Man Spot Was Already Spoken For In November
The November deadline

Yunior Marte's 40-Man Spot Was Already Spoken For In November

San Francisco selected Yunior Marte's contract on August 29 and started him in the second game of a doubleheader against Arizona, under three months before the November deadline at which the club had to protect him or lose him in December. Marte signed with Kansas City on June 2, 2022 at age 18, which under the published rule gives his club five seasons, and 2026 is the fifth. San Francisco acquired him from the Royals for Mike Yastrzemski at last year's deadline. Buster Posey described the promotion criterion in public on August 23, six days earlier. Matt Wilkinson was the same case ten days earlier. The counter-argument is five pitchers newly hurt in August, which explains the vacancy and not who filled it. Two takes filed.

Grant LombardAug 31, 20265 min read

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