Doc Rivers has lost the most games by a coach in game sevens, with 10 losses.

TEAM	L	COACH	DATE	TM		OPP	RESULT	MIN	PTS	REB	AST	STL	BLK	TOV	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	PF
Orlando Magic	1	Doc Rivers	5/4/2003	ORL	@	DET	L 93-108	240	93	34	18	2	4	13	33	79	41.8	7	21	33.3	20	22	90.9	25
Boston Celtics	1	Doc Rivers	5/7/2005	BOS	vs	IND	L 70-97	240	70	33	14	8	9	14	27	73	37.0	4	18	22.2	12	16	75.0	18
Boston Celtics	0	Doc Rivers	5/4/2008	BOS	vs	ATL	W 99-65	240	99	46	20	11	10	8	40	84	47.6	3	18	16.7	16	19	84.2	19
Boston Celtics	0	Doc Rivers	5/18/2008	BOS	vs	CLE	W 97-92	240	97	39	20	7	3	10	32	67	47.8	5	12	41.7	28	34	82.4	26
Boston Celtics	0	Doc Rivers	5/2/2009	BOS	vs	CHI	W 109-99	240	109	45	25	7	7	12	35	78	44.9	9	17	52.9	30	39	76.9	23
Boston Celtics	1	Doc Rivers	5/17/2009	BOS	vs	ORL	L 82-101	240	82	37	21	6	3	10	29	74	39.2	4	16	25.0	20	25	80.0	22
Boston Celtics	1	Doc Rivers	6/17/2010	BOS	@	LAL	L 79-83	240	79	40	18	6	7	14	29	71	40.8	6	16	37.5	15	17	88.2	25
Boston Celtics	0	Doc Rivers	5/26/2012	BOS	vs	PHI	W 85-75	240	85	44	17	10	6	14	31	73	42.5	3	17	17.6	20	22	90.9	22
Boston Celtics	1	Doc Rivers	6/9/2012	BOS	@	MIA	L 88-101	240	88	33	19	10	2	13	35	75	46.7	6	19	31.6	12	15	80.0	24
Los Angeles Clippers	0	Doc Rivers	5/3/2014	LAC	vs	GSW	W 126-121	240	126	38	26	14	7	13	46	83	55.4	8	24	33.3	26	33	78.8	21
Los Angeles Clippers	0	Doc Rivers	5/2/2015	LAC	vs	SAS	W 111-109	240	111	43	26	6	7	12	40	76	52.6	14	27	51.9	17	25	68.0	21
Los Angeles Clippers	1	Doc Rivers	5/17/2015	LAC	@	HOU	L 100-113	240	100	48	23	10	9	18	41	92	44.6	7	28	25.0	11	17	64.7	32
L.A. Clippers	1	Doc Rivers	4/30/2017	LAC	vs	UTA	L 91-104	240	91	38	17	3	2	10	35	80	43.8	6	25	24.0	15	26	57.7	19
L.A. Clippers	1	Doc Rivers	9/15/2020	LAC	vs	DEN	L 89-104	240	89	37	21	8	3	10	34	90	37.8	9	35	25.7	12	16	75.0	20
Philadelphia 76ers	1	Doc Rivers	6/20/2021	PHI	vs	ATL	L 96-103	240	96	48	26	7	4	17	34	80	42.5	9	28	32.1	19	25	76.0	28
Philadelphia 76ers	1	Doc Rivers	5/14/2023	PHI	@	BOS	L 88-112	240	88	37	15	4	7	12	31	83	37.3	8	37	21.6	18	19	94.7	14