Larry Christenson has the highest career ERA in the World Series, with an ERA of 108.00.

Interpreted as:

most world series in the divisional era by a player

	NAME	ERA	SERIES	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Larry Christenson L. Christenson	108.00	World Series	1	0	1	.000	1	0	0	0	0	0.1	5	4	4	1	0	0	0	0	6	0	0.00	0.00		27.00	0.0	0.0	15.00	.800	108.00	135.00
2	Brock Burke B. Burke	81.00	World Series	1	0	0		0	0	0	0	0	0.1	3	3	3	0	0	0	0	0	4	0	0.00	0.00		0.00	0.0	0.0	9.00	.750	81.00	81.00
3	Larry Jaster L. Jaster	81.00	World Series	2	0	0		0	0	0	0	0	0.1	4	3	3	1	1	0	0	0	6	0	0.00	27.00	0.00	27.00	0.0	16.7	15.00	.750	81.00	108.00
4	David West D. West	63.00	World Series	5	0	0		0	0	0	0	0	1.0	7	7	7	1	5	1	0	0	16	0	0.00	45.00	0.00	9.00	0.0	31.3	12.00	.667	63.00	63.00
5	Craig Breslow C. Breslow	54.00	World Series	3	0	0		0	0	0	0	0	0.1	3	2	3	0	2	1	0	0	7	0	0.00	54.00	0.00	0.00	0.0	28.6	15.00	.750	81.00	81.00
6	George Kontos G. Kontos	54.00	World Series	1	0	0		0	0	0	0	0	0.1	2	2	2	1	1	0	0	0	4	0	0.00	27.00	0.00	27.00	0.0	25.0	9.00	.500	54.00	54.00
7	Jose Valverde J. Valverde	54.00	World Series	1	0	0		0	1	0	0	0	0.1	4	2	2	0	0	0	0	0	5	0	27.00	0.00		0.00	20.0	0.0	12.00	1.000	54.00	108.00
8	Brian Bruney B. Bruney	54.00	World Series	1	0	0		0	0	0	0	0	0.1	3	2	2	0	0	0	0	0	4	0	0.00	0.00		0.00	0.0	0.0	9.00	.750	54.00	81.00
9	Jay Witasick J. Witasick	54.00	World Series	3	0	0		0	5	0	0	0	1.2	13	10	11	0	2	0	0	0	20	1	27.00	10.80	2.50	0.00	25.0	10.0	9.00	1.000	59.40	70.20
10	Joe Sparma J. Sparma	54.00	World Series	1	0	0		0	0	0	0	0	0.1	2	2	2	1	0	0	0	0	3	0	0.00	0.00		27.00	0.0	0.0	6.00	.500	54.00	54.00
11	Rip Collins R. Collins	54.00	World Series	1	0	0		0	0	0	0	0	0.2	4	4	4	0	1	0	0	0	6	0	0.00	13.50	0.00	0.00	0.0	16.7	7.50	.800	54.00	54.00
12	Brent Honeywell Jr. B. Honeywell Jr.	45.00	World Series	1	0	0		0	0	0	0	0	1.0	4	5	5	1	1	0	1	0	9	0	0.00	9.00	0.00	9.00	0.0	11.1	5.00	.429	45.00	36.00
13	Bob Trowbridge B. Trowbridge	45.00	World Series	1	0	0		0	1	0	0	0	1.0	2	5	5	1	3	0	0	0	8	0	9.00	27.00	0.33	9.00	12.5	37.5	5.00	.333	45.00	18.00
14	Mark Langston M. Langston	40.50	World Series	1	0	0		0	0	0	0	0	0.2	1	3	3	1	2	0	0	1	5	1	0.00	27.00	0.00	13.50	0.0	40.0	4.50	.000	40.50	13.50
15	Ed Whitson E. Whitson	40.50	World Series	1	0	0		1	0	0	0	0	0.2	5	3	3	0	0	0	0	0	7	0	0.00	0.00		0.00	0.0	0.0	7.50	.714	40.50	67.50
16	Luke Walker L. Walker	40.50	World Series	1	0	0		1	0	0	0	0	0.2	3	3	3	0	1	0	0	1	6	0	0.00	13.50	0.00	0.00	0.0	16.7	6.00	.600	40.50	40.50
17	Gordie Richardson G. Richardson	40.50	World Series	2	0	0		0	0	0	0	0	0.2	3	3	3	1	2	0	0	2	7	0	0.00	27.00	0.00	13.50	0.0	28.6	7.50	.500	40.50	40.50
18	Mark Lowe M. Lowe	37.80	World Series	4	0	1	.000	0	1	0	0	0	1.2	7	7	7	1	1	0	1	0	13	0	5.40	5.40	1.00	5.40	7.7	7.7	4.80	.600	37.80	37.80
19	Miguel Castro M. Castro	36.00	World Series	3	0	1	.000	0	0	0	0	0	1.0	4	4	4	1	1	0	1	0	8	1	0.00	9.00	0.00	9.00	0.0	12.5	5.00	.500	36.00	36.00
20	Franklin Morales F. Morales	29.70	World Series	3	0	0		0	1	0	0	0	3.1	9	11	11	0	1	1	0	0	22	0	2.70	2.70	1.00	0.00	4.5	4.5	3.00	.474	29.70	24.30
21	Martín Pérez M. Pérez	27.00	World Series	1	0	0		0	1	0	0	0	1.1	5	4	4	0	2	0	1	0	10	0	6.75	13.50	0.50	0.00	10.0	20.0	5.25	.714	27.00	33.75
22	Paul Sewald P. Sewald	27.00	World Series	2	0	0		0	5	0	0	0	2.0	6	6	6	2	2	1	1	1	15	0	22.50	9.00	2.50	9.00	33.3	13.3	4.00	.800	27.00	27.00
23	Ken Giles K. Giles	27.00	World Series	2	0	1	.000	0	3	0	0	0	1.2	4	5	5	1	2	0	0	0	11	1	16.20	10.80	1.50	5.40	27.3	18.2	3.60	.600	27.00	21.60
24	Brandon Finnegan B. Finnegan	27.00	World Series	2	0	1	.000	0	1	0	0	0	1.2	5	5	5	0	2	0	0	1	12	0	5.40	10.80	0.50	0.00	8.3	16.7	4.20	.556	27.00	27.00
25	Ezequiel Astacio E. Astacio	27.00	World Series	1	0	1	.000	0	0	0	0	0	0.2	4	2	2	1	2	0	0	0	7	0	0.00	27.00	0.00	13.50	0.0	28.6	9.00	.750	27.00	54.00