Closer Extrapolation

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While sorting through some legacy pitching stats, I noticed something pretty cool.  If you compile numbers from the last 3 year calendar years, regular closers who had more than 75 saves threw between 173 – 228 innings.  During the last calendar year, starting pitchers in the top third of innings pitched, ripped off between 146 – 250 innings.

In short, with regards to innings pitched and with a little imagination:

SP’s          RP’s
—–    =    —–
1yr           3yrs

The cool part is when you look at the relief pitchers; the numbers could pass for single season starter stats.  The table below is sorted by Wins.  Check out Joe Nathan and his 16-3 record and 1.63 ERA (more importantly, look at his SV-BS ratio – yikes).  And how bad was Borowski?  Granted these are less skill-driven statistical categories, but fun nonetheless.

Name	Team	W	L	ERA	SV	BS	IP	H	HR	BB	SO	WHIP	WPA
Joe Nathan	Twins	16	3	1.63	116	10	209.1	134	12	51	260	0.88	13.0
Francisco Cordero	Reds	16	12	3.32	102	27	211.2	184	17	89	250	1.29	2.33
Mariano Rivera	Yankees	15	14	2.13	108	9	228.2	183	10	34	217	0.95	11.1
J.J. Putz	Mariners	15	7	2.54	84	12	191.2	145	12	50	226	1.02	9.68
Huston Street	Athletics	13	9	3.20	84	21	194.0	157	17	47	201	1.05	5.02
Jonathan Papelbon	Red Sox	12	9	1.76	102	14	205.0	137	15	52	245	0.92	11.4
Takashi Saito	Dodgers	11	6	1.86	80	9	184.0	115	9	48	238	0.89	9.44
Jason Isringhausen	Cardinals	10	14	3.53	88	20	183.1	144	22	91	155	1.28	-0.87
Chad Cordero	Nationals	10	9	3.29	79	17	175.1	155	26	59	151	1.22	3.05
Bobby Jenks	White Sox	9	10	2.96	106	15	204.0	167	11	65	197	1.14	6.81
Jose Valverde	Astros	9	10	3.78	103	17	190.1	157	24	72	237	1.20	4.34
Brad Lidge	Phillies	9	10	3.40	93	15	214.2	170	20	96	291	1.24	4.77
Joe Borowski	Indians	9	16	4.68	87	23	182.2	189	23	68	147	1.41	-0.18
Francisco Rodriguez	Angels	7	11	2.45	150	16	213.1	154	15	108	271	1.23	11.1
Todd Jones	Tigers	7	11	4.00	118	17	195.2	208	11	52	103	1.33	5.15
Brian Fuentes	Rockies	7	15	3.17	84	17	196.0	156	18	71	211	1.16	3.23
Trevor Hoffman	Padres	6	14	2.96	122	16	173.1	152	16	39	150	1.10	3.91
Billy Wagner	Mets	6	7	2.10	116	17	214.0	155	18	58	261	1.00	7.19

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Tags: Borowski, Closers, Losses, Nathan, Relief Ptichers, Saves, Wins