# 2006 Oakland Athletics season

The Oakland Athletics' 2006 season was their 39th in Oakland, California. It was also the 106th season in franchise history. The team finished first in the American League West with a record of 93–69.
The Athletics won their division (and reached the postseason) for the first time since 2003. The team was led, in large part, by eventual Hall-of-Famer Frank Thomas. Thomas, who was signed to a one-year contract in the offseason, hit a team-high 39 home runs over the course of the season. He ultimately finished fourth in American League MVP voting.
The Athletics managed to sweep the Minnesota Twins in the first round of the playoffs. In doing so, they advanced to the American League Championship Series for the first time since 1992. The sweep was Oakland's first playoff series victory since 1990. It stood as the only playoff series victory during the Billy Beane era until 2020. The Athletics would themselves be swept, 4 games to 0, by the Detroit Tigers in the ALCS.
The team saw a number of key departures at the end of the season. Free agent pitcher Barry Zito, the team's lone All-Star in 2006, signed with the rival San Francisco Giants following the team's ALCS loss. Additionally, Frank Thomas signed a two-year deal with the Toronto Blue Jays. The coaching staff experienced similar turnover, as manager Ken Macha and longtime third base coach Ron Washington departed. Macha was fired at seasons' end; Washington, by contrast, was hired to manage the division rival Texas Rangers. They would be replaced by Bob Geren and Rene Lachemann, respectively.

## Offseason

* November 29, 2005: Esteban Loaiza was signed as a free agent with the Oakland Athletics.
* December 9, 2005: Scott McClain was signed as a free agent with the Oakland Athletics.
* December 13, 2005: Milton Bradley was traded by the Los Angeles Dodgers with Antonio Perez to the Oakland Athletics for Andre Ethier.
* January 31, 2006: Frank Thomas signed as a free agent.

## Regular season
### Season standings

vteAL West :
| Team | W | L | Pct. | GB | Home | Road |
| Oakland Athletics | 93 | 69 | .574 | — | 49‍–‍32 | 44‍–‍37 |
| Los Angeles Angels of Anaheim | 89 | 73 | .549 | 4 | 45‍–‍36 | 44‍–‍37 |
| Texas Rangers | 80 | 82 | .494 | 13 | 39‍–‍42 | 41‍–‍40 |
| Seattle Mariners | 78 | 84 | .481 | 15 | 44‍–‍37 | 34‍–‍47 |

### Record vs. opponents

2006 American League recordvte Sources: :
| Team | BAL | BOS | CWS | CLE | DET | KC | LAA | MIN | NYY | OAK | SEA | TB | TEX | TOR | NL |
| Baltimore | — | 3–15 | 2–5 | 4–2 | 3–3 | 5–1 | 4–6 | 3–6 | 7–12 | 2–4 | 4–6 | 13–6 | 3–6 | 8–11 | 9–9 |
| Boston | 15–3 | — | 4–2 | 3–4 | 3–3 | 4–5 | 3–3 | 1–5 | 8–11 | 3–7 | 4–6 | 10–9 | 5–4 | 7–12 | 16–2 |
| Chicago | 5–2 | 2–4 | — | 8–11 | 12–7 | 11–8 | 6–3 | 9–10 | 2–4 | 3–3 | 5–4 | 3–3 | 5–5 | 5–4 | 14–4 |
| Cleveland | 2–4 | 4–3 | 11–8 | — | 6–13 | 10–8 | 4–5 | 8–11 | 3–4 | 3–6 | 4–5 | 6–1 | 5–4 | 4–2 | 8–10 |
| Detroit | 3–3 | 3–3 | 7–12 | 13–6 | — | 14–4 | 3–5 | 11–8 | 2–5 | 5–4 | 6–3 | 5–3 | 5–5 | 3–3 | 15–3 |
| Kansas City | 1–5 | 5–4 | 8–11 | 8–10 | 4–14 | — | 3–7 | 7–12 | 2–7 | 4–5 | 3–5 | 1–5 | 3–3 | 3–4 | 10–8 |
| Los Angeles | 6–4 | 3–3 | 3–6 | 5–4 | 5–3 | 7–3 | — | 4–2 | 6–4 | 11–8 | 10–9 | 7–2 | 11–8 | 4–6 | 7–11 |
| Minnesota | 6–3 | 5–1 | 10–9 | 11–8 | 8–11 | 12–7 | 2–4 | — | 3–3 | 6–4 | 5–3 | 6–1 | 4–5 | 2–5 | 16–2 |
| New York | 12–7 | 11–8 | 4–2 | 4–3 | 5–2 | 7–2 | 4–6 | 3–3 | — | 3–6 | 3–3 | 13–5 | 8–2 | 10–8 | 10–8 |
| Oakland | 4–2 | 7–3 | 3–3 | 6–3 | 4–5 | 5–4 | 8–11 | 4–6 | 6–3 | — | 17–2 | 6–3 | 9–10 | 6–4 | 8–10 |
| Seattle | 6–4 | 6–4 | 4–5 | 5–4 | 3–6 | 5–3 | 9–10 | 3–5 | 3–3 | 2–17 | — | 6–3 | 8–11 | 4–5 | 14–4 |
| Tampa Bay | 6–13 | 9–10 | 3–3 | 1–6 | 3–5 | 5–1 | 2–7 | 1–6 | 5–13 | 3–6 | 3–6 | — | 3–6 | 6–12 | 11–7 |
| Texas | 6–3 | 4–5 | 5–5 | 4–5 | 5–5 | 3–3 | 8–11 | 5–4 | 2–8 | 10–9 | 11–8 | 6–3 | — | 4–2 | 7–11 |
| Toronto | 11–8 | 12–7 | 4–5 | 2–4 | 3–3 | 4–3 | 6–4 | 5–2 | 8–10 | 4–6 | 5–4 | 12–6 | 2–4 | — | 9–9 |

### Game log

2006 Game Log :
April
#DateOpponentScoreWinLossSaveAttendanceRecord
1April 3Yankees2-15Johnson (1-0)Zito (0-1)–35,0770-1
2April 4Yankees4-3Street (1-0)Proctor (0-1)–31,2841-1
3April 5Yankees9-4Kennedy (1-0)Wright (0-1)–30,1652-1
4April 6@ Mariners2-6Meche (1-0)Loaiza (0-1)Putz (1)22,7012-2
5April 7@ Mariners5-0Blanton (1-0)Hernández (0-1)–30,6123-2
6April 8@ Mariners3-0Zito (1-1)Moyer (0-1)Street (1)37,9044-2
7April 9@ Mariners6-4Harden (1-0)Piñeiro (1-1)Street (2)27,1395-2
8April 11@ Twins6-7Radke (2-0)Haren (0-1)Nathan (1)48,9115-3
9April 12@ Twins5-6Silva (1-1)Loaiza (0-2)Nathan (2)22,6035-4
10April 13@ Twins2-8Lohse (1-1)Blanton (1-1)–13,5205-5
11April 14Rangers3-6Millwood (1-2)Zito (1-2)–14,0495-6
12April 15Rangers5-4Harden (2-0)Padilla (2-1)Street (3)16,1866-6
13April 16Rangers3-5Cordero (1-1)Street (1-1)–21,2566-7
14April 18Tigers4-3Duchscherer (1-0)Verlander (1-2)Street (4)16,8577-7
15April 19Tigers4-11Rogers (3-1)Blanton (1-2)–18,3097-8
16April 20Tigers3-4Rodney (1-0)Duchscherer (1-1)–15,4897-9
17April 21Angels5-3Harden (3-0)Romero (1-2)Calero (1)19,8748-9
18April 22Angels4-5Weaver (1-2)Haren (0-2)F. Rodríguez (6)22,6708-10
19April 23Angels3-4Escobar (3-1)Loaiza (0-3)F. Rodríguez (7)27,1048-11
20April 24@ Rangers3-2Blanton (2-2)Wilson (1-1)Duchscherer (1)23,8029-11
21April 25@ Rangers5-6Cordero (3-2)Gaudin (0-1)–25,4929-12
22April 26@ Rangers6-4 (10)Duchscherer (2-1)Wilson (1-2)Kennedy (1)23,75610-12
23April 28@ Royals5-3Haren (1-2)Mays (0-3)Saarloos (1)12,20311-12
---April 29@ RoyalsPostponed (rain) Rescheduled for August 1811-12
24April 30@ Royals13-6Blanton (3-2)Hudson (0-3)–15,22412-12 :
May
#DateOpponentScoreWinLossSaveAttendanceRecord
25May 1@ Angels1-0Zito (2-2)Carrasco (0-2)Duchscherer (2)41,72113-12
26May 2@ Angels10-3Halsey (1-0)Lackey (3-2)–35,94314-12
27May 3Indians3-14Byrd (4-2)Haren (1-3)–18,24814-13
28May 4Indians12-4Saarloos (1-0)Johnson (2-2)Gaudin (1)14,69515-13
29May 5Devil Rays1-3Kazmir (4-2)Blanton (3-3)Walker (2)12,55215-14
30May 6Devil Rays3-2Kennedy (2-0)Orvella (1-3)–25,08016-14
31May 7Devil Rays2-3Hendrickson (2-2)Halsey (1-1)Walker (3)22,83716-15
32May 9@ Blue Jays6-5Haren (2-3)Towers (0-7)Street (5)36,26917-15
33May 10@ Blue Jays7-9Rosario (1-0)Blanton (3-4)Ryan (8)19,26917-16
34May 11@ Blue Jays3-8Lilly (4-2)Saarloos (1-1)–23,97417-17
35May 12@ Yankees0-2Wang (3-1)Zito (2-3)Rivera (7)47,49717-18
36May 13@ Yankees3-4Wright (1-2)Halsey (1-2)Farnsworth (1)53,90717-19
37May 14@ Yankees6-1Haren (3-3)Johnson (5-4)–52,58718-19
38May 16Mariners12-6Blanton (4-4)Hernández (3-5)–16,39719-19
39May 17Mariners7-2Zito (3-3)Moyer (1-4)–19,20820-19
40May 18Mariners6-3Saarloos (2-1)Piñeiro (4-4)Street (6)18,13621-19
41May 19Giants1-0Haren (4-3)Lowry (1-1)Street (7)35,07722-19
42May 20Giants2-4 (10)Benítez (3-0)Calero (0-1)–35,07722-20
43May 21Giants0-6Cain (2-5)Blanton (4-5)–35,07722-21
44May 22@ White Sox4-5 (10)Jenks (2-1)Flores (0-1)–39,35422-22
45May 23@ White Sox3-9Vázquez (5-3)Saarloos (2-2)–38,86022-23
46May 24@ White Sox2-3Buehrle (6-2)Haren (4-4)Jenks (13)38,43422-24
47May 25@ Rangers7-8Otsuka (1-1)Street (1-2)–22,00622-25
48May 26@ Rangers3-5Cordero (4-3)Gaudin (0-2)Otsuka (7)27,79122-26
49May 27@ Rangers6-3Zito (4-3)Loe (3-5)Street (8)41,22623-26
50May 28@ Rangers3-4Padilla (5-3)Saarloos (2-3)Otsuka (8)38,90523-27
51May 29Royals4-6Etherton (1-0)Haren (4-5)Burgos (6)28,04023-28
52May 30Royals7-8 (10)Dessens (3-5)Roney (0-1)Burgos (7)12,51623-29
53May 31Royals7-0Blanton (5-5)Elarton (1-6)–25,18124-29 :
June
#DateOpponentScoreWinLossSaveAttendanceRecord
54June 1Twins4-0Zito (5-3)Bonser (1-1)–12,02525-29
55June 2Twins1-2Santana (5-4)Saarloos (2-4)Nathan (7)16,13825-30
56June 3Twins2-1Halsey (2-2)Radke (4-7)Street (9)23,19426-30
57June 4Twins5-1Halsey (3-2)Silva (2-7)–25,24727-30
58June 6@ Indians7-6Zito (6-3)Betancourt (0-1)Street (10)17,34028-30
59June 7@ Indians2-11Byrd (5-4)Blanton (5-6)–20,31128-31
60June 8@ Indians4-1Loaiza (1-3)Johnson (3-6)Street (11)21,09929-31
61June 9@ Yankees6-5Haren (5-5)Johnson (7-5)Street (12)53,83730-31
62June 10@ Yankees5-2Saarloos (3-4)Mussina (8-2)Street (13)53,77931-31
63June 11@ Yankees6-5Zito (7-3)Kyle Farnsworth (2-4)Street (14)54,57032-31
64June 13Mariners2-0Blanton (6-6)Moyer (3-6)Street (15)15,21633-31
65June 14Mariners7-2Haren (6-5)Piñeiro (5-7)–20,55034-31
66June 15Mariners9-6Loaiza (2-3)Washburn (4-8)Street (16)16,56335-31
67June 16Dodgers7-3Zito (8-3)Tomko (5-6)–30,16136-31
68June 17Dodgers5-4 (17)Karsay (1-0)Seo (2-4)–35,07737-31
69June 18Dodgers5-2Blanton (7-6)Sele (3-2)Street (17)35,07738-31
70June 19@ Rockies0-7Kim (4-4)Haren (6-6)–21,96438-32
71June 20@ Rockies0-6Jennings (6-6)Loaiza (2-4)–21,75338-33
72June 21@ Rockies3-2 (11)Calero (1-1)King (1-3)–26,48939-33
73June 23@ Giants4-3Calero (2-1)Benítez (4-1)Street (18)42,94840-33
74June 24@ Giants7-8Worrell (3-2)Street (1-3)–42,86640-34
75June 25@ Giants10-4Loaiza (3-4)Cain (6-6)–42,41441-34
76June 27@ Padres0-3Young (7-3)Zito (8-4)Hoffman (19)34,10241-35
77June 28@ Padres1-8Hensley (5-6)Blanton (7-7)–39,87441-36
78June 29@ Padres6-5 (14)Flores (1-1)Cassidy (4-4)Gaudin (2)30,30142-36
79June 30Diamondbacks4-6Vargas (7-4)Halsey (3-3)Julio (7)16,75642-37 :
July
#DateOpponentScoreWinLossSaveAttendanceRecord
80July 1Diamondbacks2-7Batista (8-5)Loaiza (3-5)–19,02442-38
81July 2Diamondbacks1-3Webb (9-3)Zito (8-5)–19,13042-39
82July 3Tigers5-3Blanton (8-7)Robertson (8-4)Street (19)35,07743-39
83July 4Tigers2-1 (10)Gaudin (1-2)Rodney (4-3)–21,09644-39
84July 5Tigers4-10Rogers (11-3)Saarloos (3-5)Colón (1)22,21044-40
85July 6Angels7-5Street (2-3)Shields (4-6)–14,67345-40
86July 7Angels0-3Lackey (7-5)Zito (8-6)–20,71145-41
87July 8Angels4-6Weaver (6-0)Blanton (8-8)F. Rodríguez (20)25,28945-42
88July 9Angels2-4Santana (10-3)Haren (6-7)F. Rodríguez (21)26,60345-43
89July 13@ Red Sox5-4 (11)Street (3-3)Tavárez (1-3)Saarloos (2)36,14146-43
90July 14@ Red Sox15-3Zito (9-6)Beckett (11-5)–36,31947-43
91July 15@ Red Sox0-7Schilling (11-3)Haren (6-8)–36,23247-44
92July 16@ Red Sox8-1Blanton (9-8)Snyder (1-1)–35,64348-44
93July 17@ Orioles3-5Birkins (5-1)Saarloos (3-6)Ray (23)19,65248-45
94July 18@ Orioles5-4Loaiza (4-5)E. Rodríguez (0-1)Street (20)20,82749-45
95July 19@ Orioles5-1Zito (10-6)Benson (9-9)–29,40750-45
96July 21@ Tigers4-7Verlander (12-4)Haren (6-9)–40,68750-46
97July 22@ Tigers9-5Blanton (10-8)Ledezma (1-1)–38,92351-46
98July 23@ Tigers4-8Robertson (9-6)Loaiza (4-6)–40,35551-47
99July 24Red Sox3-7Beckett (13-5)Zito (10-7)–33,37051-48
100July 25Red Sox5-13Schilling (13-3)Windsor (0-1)–34,07751-49
101July 26Red Sox5-1Haren (7-9)Snyder (2-2)–35,07752-49
102July 27Blue Jays5-2Blanton (11-8)Lilly (9-9)Street (21)19,25153-49
103July 28Blue Jays3-4Downs (5-1)Loaiza (4-7)Ryan (25)22,21753-50
104July 29Blue Jays7-4Zito (11-7)McGowan (1-1)Street (22)25,62754-50
105July 30Blue Jays6-5Street (4-3)Ryan (1-1)–29,70955-50
106July 31@ Angels3-1Haren (8-9)Santana (11-5)–43,55856-50 :
August
#DateOpponentScoreWinLossSaveAttendanceRecord
107August 1@ Angels2-3Saunders (2-0)Blanton (11-9)F. Rodríguez (26)44,11155-51
108August 2@ Angels3-2CaleroShields (6-7)Street (23)44,14957-51
109August 4@ Mariners5-2Zito (12-7)Washburn (5-11)–44,27758-51
110August 5@ Mariners5-2Haren (9-9)Piñeiro (7-9)Street (24)40,11559-51
111August 6@ Mariners7-6Blanton (12-9)Meche (9-6)Street (25)37,43760-51
112August 7Rangers7-4Loaiza (5-7)Vólquez (0-1)Calero (2)21,20861-51
113August 8Rangers7-6Saarloos (4-6)Millwood (10-8)Street (26)21,65062-51
114August 9Rangers0-14Padilla (12-7)Zito (12-8)–30,12762-52
115August 11Devil Rays5-2Haren (10-9)Kazmir (10-8)Street (27)20,75863-52
116August 12Devil Rays6-3Blanton (13-9)Fossum (6-5)Street (28)26,52364-52
117August 13Devil Rays3-1Loaiza (6-7)Corcoran (4-4)Street (29)28,69265-52
118August 14Mariners5-4Kennedy (3-0)Soriano (1-2)Duchscherer (3)21,85966-52
119August 15Mariners11-2Saarloos (5-6)Piñeiro (7-11)–23,72667-52
120August 16Mariners4-0Haren (11-9)Meche (9-8)–34,07768-52
121August 18@ Royals1-7Hudson (6-4)Blanton (13-10)–n/a68-53
122August 18@ Royals3-5Burgos (3-5)Street (4-4)Nelson (2)23,95268-54
123August 19@ Royals7-2Zito (13-8)Redman (7-8)–30,81069-54
124August 20@ Royals6-4Saarloos (6-6)Hernández (3-8)–16,59270-54
125August 21@ Blue Jays12-10Haren (12-9)League (0-1)Duchscherer (4)28,28071-54
126August 22@ Blue Jays3-4Burnett (6-5)Halsey (3-4)Ryan (28)30,07171-55
127August 23@ Blue Jays6-0Loaiza (7-7)Chacín (6-3)–32,51672-55
128August 25@ Rangers9-3Zito (14-8)Vólquez (1-3)–31,17873-55
129August 26@ Rangers5-3Blanton (14-10)Eaton (3-4)Duchscherer (5)37,75274-55
130August 27@ Rangers0-3Padilla (13-8)Haren (12-10)Otsuka (28)25,70874-56
131August 28Red Sox9-0Loaiza (8-7)Gabbard (0-3)–30,15975-56
132August 29Red Sox2-1Saarloos (7-6)Beckett (14-9)Duchscherer (6)30,51776-56
133August 30Red Sox7-2Zito (15-8)Schilling (14-7)–31,07377-56 :
September
#DateOpponentScoreWinLossSaveAttendanceRecord
134September 1Orioles5-4Halsey (4-4)Williams (2-4)Duchscherer (7)31,17978-56
135September 2Orioles5-6Loewen (5-4)Haren (12-11)Ray (31)24,38378-57
136September 3Orioles10-1Loaiza (9-7)Penn (0-1)–26,28079-57
137September 4Rangers1-8Tejeda (4-3)Zito (15-9)–23,94979-58
138September 5Rangers4-5Eaton (5-4)Saarloos (7-7)Otsuka (31)27,22579-59
139September 6Rangers9-6Blanton (15-10)Rupe (0-1)Duchscherer (8)17,83880-59
140September 8@ Devil Rays8-6Haren (13-11)Shields (6-7)Street (30)12,82181-59
141September 9@ Devil Rays6-9Miceli (1-1)Loaiza (9-8)McClung (6)22,01681-60
142September 10@ Devil Rays9-7Kennedy (4-0)Camp (7-3)Street (31)16,79182-60
143September 11@ Twins4-9Silva (9-13)Blanton (15-11)Nathan (31)15,72882-61
144September 12@ Twins5-7Reyes (5-0)Kennedy (4-1)Nathan (32)20,99182-62
145September 13@ Twins1-0Haren (14-11)Garza (1-5)Street (32)18,90283-62
146September 15White Sox4-2Loaiza (10-8)Garland (17-5)Street (33)26,80984-62
147September 16White Sox7-4Zito (16-9)Thornton (5-3)Street (34)32,16985-62
148September 17White Sox5-4Blanton (16-11)Contreras (13-8)Duchscherer (9)28,80686-62
149September 18Indians2-7Westbrook (13-10)Haren (14-12)–17,35286-63
150September 19Indians7-3Gaudin (2-2)Lee (12-11)–15,86687-63
151September 20Indians4-3Loaiza (11-8)Cabrera (3-3)Street (35)25,13188-63
152September 21Indians7-4Gaudin (3-2)Sabathia (11-11)Street (36)20,45289-63
153September 22Angels5-4 (12)Halsey (5-4)F. Rodríguez (2-3)–35,07790-63
154September 23Angels2-6Lackey (12-11)Blanton (16-12)–34,07790-64
155September 24Angels1-7Santana (15-8)Haren (14-13)–34,07790-65
156September 25@ Mariners9-10 (10)Putz (4-1)Calero (3-2)–20,98290-66
157September 26@ Mariners12-3Harden (4-0)Woods (6-4)–19,60491-66
158September 27@ Mariners7-6 (10)Witasick (1-0)Sherrill (2-4)Street (37)23,42192-66
159September 28@ Angels0-2Lackey (13-11)Zito (16-10)F. Rodríguez (46)41,94492-67
160September 29@ Angels0-6Santana (16-8)Loaiza (11-9)–43,94892-68
161September 30@ Angels6-7Carrasco (7-3)Flores (1-2)F. Rodríguez (47)43,94492-69 :
October
#DateOpponentScoreWinLossSaveAttendanceRecord
162October 1@ Angels11-10Gaudin (4-2)Bootcheck (0-1)Flores (1)44,10793-69 :

### Roster
## Player stats
### Batting
#### Starters by position

Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in
| Pos | Player | G | AB | H | Avg. | HR | RBI |
| C | Jason Kendall | 143 | 552 | 163 | .295 | 1 | 50 |
| 1B | Dan Johnson | 91 | 286 | 67 | .234 | 9 | 37 |
| 2B | Mark Ellis | 124 | 441 | 110 | .249 | 11 | 52 |
| SS | Bobby Crosby | 96 | 358 | 82 | .229 | 9 | 40 |
| 3B | Eric Chavez | 137 | 445 | 117 | .241 | 22 | 72 |
| LF | Nick Swisher | 157 | 556 | 141 | .254 | 35 | 95 |
| CF | Mark Kotsay | 129 | 502 | 138 | .275 | 7 | 59 |
| RF | Milton Bradley | 96 | 351 | 97 | .276 | 14 | 52 |
| DH | Frank Thomas | 137 | 466 | 126 | .270 | 39 | 114 |

#### Other batters

Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in
| Player | G | AB | H | Avg. | HR | RBI |
| Jay Payton | 142 | 557 | 165 | .296 | 10 | 59 |
| Marco Scutaro | 117 | 365 | 97 | .266 | 5 | 41 |
| Bobby Kielty | 81 | 270 | 73 | .270 | 8 | 36 |
| Adam Melhuse | 49 | 128 | 28 | .219 | 4 | 18 |
| Antonio Pérez | 57 | 98 | 10 | .102 | 1 | 8 |
| Mike Rouse | 8 | 24 | 7 | .292 | 0 | 2 |
| D'Angelo Jiménez | 8 | 14 | 1 | .071 | 0 | 0 |
| Hiram Bocachica | 8 | 13 | 3 | .231 | 0 | 0 |
| Jeremy Brown | 5 | 10 | 3 | .300 | 0 | 0 |
| Doug Clark | 6 | 6 | 1 | .167 | 0 | 0 |

### Pitching
#### Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts
| Player | G | IP | W | L | ERA | SO |
| Dan Haren | 34 | 223.0 | 14 | 13 | 4.12 | 176 |
| Barry Zito | 34 | 221.0 | 16 | 10 | 3.83 | 151 |
| Joe Blanton | 32 | 194.1 | 16 | 12 | 4.82 | 107 |
| Esteban Loaiza | 26 | 154.2 | 11 | 9 | 4.89 | 97 |
| Rich Harden | 9 | 46.2 | 4 | 0 | 4.24 | 49 |
| Shane Komine | 2 | 9.0 | 0 | 0 | 5.00 | 1 |

#### Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts
| Player | G | IP | W | L | ERA | SO |
| Kirk Saarloos | 35 | 121.1 | 7 | 7 | 4.75 | 52 |
| Brad Halsey | 52 | 94.1 | 5 | 4 | 4.67 | 53 |
| Jason Windsor | 4 | 13.2 | 0 | 1 | 6.59 | 6 |

#### Relief pitchers

Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts
| Player | G | W | L | SV | ERA | SO |
| Huston Street | 69 | 4 | 4 | 37 | 3.31 | 67 |
| Kiko Calero | 70 | 3 | 2 | 2 | 3.41 | 67 |
| Chad Gaudin | 55 | 4 | 2 | 2 | 3.09 | 36 |
| Justin Duchscherer | 53 | 2 | 1 | 9 | 2.91 | 51 |
| Joe Kennedy | 39 | 4 | 1 | 1 | 2.31 | 29 |
| Ron Flores | 25 | 1 | 2 | 1 | 3.34 | 20 |
| Scott Sauerbeck | 22 | 0 | 0 | 0 | 3.65 | 6 |
| Jay Witasick | 20 | 1 | 0 | 0 | 6.75 | 23 |
| Randy Keisler | 11 | 0 | 0 | 0 | 4.50 | 5 |
| Steve Karsay | 9 | 1 | 0 | 0 | 5.79 | 5 |
| Matt Roney | 3 | 0 | 1 | 0 | 4.50 | 0 |
| Santiago Casilla | 2 | 0 | 0 | 0 | 11.57 | 2 |

## Farm system

| Level | Team | League | Manager |
| AAA | Sacramento River Cats | Pacific Coast League | Tony DeFrancesco |
| AA | Midland RockHounds | Texas League | Von Hayes |
| A | Stockton Ports | California League | Todd Steverson |
| A | Kane County Cougars | Midwest League | Aaron Nieckula |
| A-Short Season | Vancouver Canadians | Northwest League | Dennis Rogers |
| Rookie | AZL Athletics | Arizona League | Ruben Escalera |