Perfect in relief: at least 7 innings. Stathead gives incorrect result.

See the previous post:

Baseball Reference via Stathead: imperfect list of perfect games. Thursday, November 19, 2020

Three of the five perfect relief appearances produce by Stathead of at least seven innings check out. Why check for seven innings? Because I attended the Lindy McDaniel game.

In years 1901 to 2020, as Reliever, (requiring BR=0 and IPouts>=21), sorted by greatest IP

Rk	Player	Date	Tm	Opp	Rslt	App,Dec	IP	H	R	ER	BB	SO	HR	UER	Pit	Str	GSc	IR	IS	BF	AB	2B	3B	IBB	HBP	SH	SF	GDP	SB	CS	PO	BK	WP	ERA	WPA	RE24	aLI	DFS(DK)	DFS(FD)
1	Ernie Shore	1917-06-23 (1)	BOS	WSH	W 4-0	SHO, W	9.0	0	0	0	0	2	0	0						26	26				0	0	0					0	0	0.00
2	Jim Scott	1910-08-08	CHW	WSH	L 2-3		8.1	0	1		0	2	0							24	24				0							0	0	0.00
3	Jake Westbrook	2004-04-19	CLE	DET	L 4-10	1-7	7.0	0	0	0	0	7	0	0	84	52		2	0	21	21	0	0	0	0	0	0	0	0	0	0	0	0	0.00	0.278	4.702	.513
4	Lindy McDaniel	1968-08-23 (2)	NYY	DET	T 3-3	9-15	7.0	0	0	0	0	6	0	0				0	0	21	21	0	0	0	0	0	0	0	0	0	0	0	0	0.00	0.749	2.527	1.560
5	Cy Young	1904-04-30	BOS	WSH	W 4-1	, S	7.0	0	0	0	0	4	0	0											0	0						0	0	0.00

The Ernie Shore game is famous. Babe Ruth started and walked the first batter and was ejected for arguing. Shore relieved, picked off Ruth's runner and retired 26 in a row. No play by play.

https://www.baseball-reference.com/boxes/BOS/BOS191706231.shtml

Pitching	IP	H	R	ER	BB	SO	HR	ERA	BF	GSc
Babe Ruth	0	0	0	0	1	0	0	2.35	1	49
Ernie Shore, W (7-4)	9	0	0	0	0	2	0	2.09	26
Team Totals	9	0	0	0	1	2	0	0.00	27	49

Jim Scott does NOT check out:

https://www.baseball-reference.com/boxes/CHA/CHA191008080.shtml

Pitching	IP	H	R	ER	BB	SO	HR	ERA	BF	GSc
Irv Young, L (3-7)	0.2	2	2		0	0	0	0.00	4
Jim Scott	8.1	0	1		0	2	0	0.00	24
Team Totals	9	2	3		0	2	0	0.00	28

Scott allowed a run yet is included by Stathead as having allowed zero base runners (BR). No play by play.

Cy Young? Cannot determine. No play by play.

https://www.baseball-reference.com/boxes/WS1/WS1190404300.shtml

Pitching	IP	H	R	ER	BB	SO	HR	ERA	BF	GSc
George Winter, W (2-0)	2	6	1	1	1	0	0	0.82	-1	39
Cy Young, S (1)	7	0	0	0	0	4	0	1.97	-1
Team Totals	9	6	1	1	1	4	0	1.00	-2	39

Why is batters faced (BF) -1?

Note that the starting pitcher got the win with only two innings.