Season	ERA	W	L	GP	GS	CG	ShO	SV	IP	H	R	ER	HR	BB	K
Year to date:	2009	2.10	2	2	70	0	0	0	47	68.2	42	16	16	7	22	89

Mar 24, 2008: Signed by the Minnesota Twins to a three-year contract extension with a club option for 2012.
Oct 29, 2007: Minnesota Twins exercised their club option for the 2008 season.
Mar 4, 2005: Re-signed by the Minnesota Twins to a two-year contract.
Mar 5, 2004: Re-signed by the Minnesota Twins to a two-year contract.
Nov 14, 2003: Acquired from the San Francisco Giants.
Mar 2, 2003: Re-signed by the San Francisco Giants to a one-year contract.
Oct 2, 2002: Did not make the 25-man playoff roster.
Sep 3, 2002: Recalled from Fresno (AAA).
Mar 27, 2001: Optioned to Fresno (AAA).

Nov 14, 2003: San Francisco Giants traded Joe Nathan, Boof Bonser and Francisco Liriano to the Minnesota Twins for A.J. Pierzynski and a player to be named or cash considerations.
Jun 1, 1995: Drafted by the San Francisco Giants in the 6th round in 1995.

Year	Team	League	ERA	W	L	GP	GS	CG	ShO	SV	IP	H	R	ER	HR	BB	K
2009	Minnesota	AL	2.10	2	2	70	0	0	0	47	68.2	42	16	16	7	22	89
2008	Minnesota	AL	1.33	1	2	68	0	0	0	39	67.2	43	13	10	5	18	74
2007	Minnesota	AL	1.88	4	2	68	0	0	0	37	71.2	54	15	15	4	19	77
2006	Minnesota	AL	1.58	7	0	64	0	0	0	36	68.1	38	12	12	3	16	95
2005	Minnesota	AL	2.70	7	4	69	0	0	0	43	70.0	46	22	21	5	22	94
2004	Minnesota	AL	1.62	1	2	73	0	0	0	44	72.1	48	14	13	3	23	89
2003	San Francisco	NL	2.96	12	4	78	0	0	0	0	79.0	51	26	26	7	33	83
2002	San Francisco	NL	0.00	0	0	4	0	0	0	0	3.2	1	0	0	0	0	2
2002	Fresno	AAA	5.60	6	12	31	25	1	0	0	146.1	167	97	91	20	74	117
2001	Shreveport	AA	6.93	3	6	21	7	0	0	0	62.1	73	49	48	11	37	33
2001	Fresno	AAA	7.77	0	5	10	10	0	0	0	46.1	63	47	40	13	33	21
2000	Total SJ/Bak	A	4.35	1	1	2	2	0	0	0	10.1	6	5	5	1	8	8
2000	San Jose	A	3.60	0	1	1	1	0	0	0	5.0	4	2	2	1	1	2
2000	San Francisco	NL	5.21	5	2	20	15	0	0	0	93.1	89	63	54	12	63	61
2000	Fresno	AAA	4.40	0	2	3	3	0	0	0	14.1	15	8	7	4	7	9
2000	Bakersfield	A	5.06	1	0	1	1	0	0	0	5.1	2	3	3	0	7	6
1999	Shreveport	AA	3.12	0	1	2	2	0	0	0	8.2	5	4	3	0	7	7
1999	San Francisco	NL	4.18	7	4	19	14	0	0	1	90.1	84	45	42	17	46	54
1999	Fresno	AAA	4.46	6	4	13	13	1	0	0	74.2	68	44	37	11	36	82
1998	Shreveport	AA	8.80	1	3	4	4	0	0	0	15.1	20	15	15	4	9	10
1998	San Jose	A	3.32	8	6	22	22	0	0	0	122.0	100	51	45	13	48	118
1997	Salem-Keizer	A	2.47	2	1	18	5	0	0	2	62.0	53	22	17	7	26	44
	Total	MLB	2.75	46	22	533	29	0	0	247	685.0	496	226	209	63	262	718
	Total	NL	4.12	24	10	121	29	0	0	1	266.1	225	134	122	36	142	200
	Total	AL	1.87	22	12	412	0	0	0	246	418.2	271	92	87	27	120	518
	Total	AAA	5.59	12	23	57	51	2	0	0	281.2	313	196	175	48	150	229
	Total	AA	6.88	4	10	27	13	0	0	0	86.1	98	68	66	15	53	50
	Total	A	3.10	11	8	42	29	0	0	2	194.1	159	78	67	21	82	170

2004-2005: Named to the All-Star Game
2004-2005: Played in the All-Star Game
2005-2006: Named to the All-Star Game
2005-2006: Played in the All-Star Game
2008-2009: Named to the All-Star Game
2009-2010: AL - Rolaids Relief Man
2009-2010: Named to the All-Star Game