Isaiah Thomas vs. Robert Williams III Season by Season Comparison

Side by side comparison of each NBA season of Robert Williams III and Isaiah Thomas, from their rookie seasons to their last year played, in chronological order with awards, stats, championships and playoff performance of their teams every year.

Player comparisons:
Career comparison / Season by season / Games against each other

Who had the better rookie season? Who had best stats in their 10th season? Who won a championship first? These questions and many others, are answered here.

Isaiah Thomas played 12 years in the NBA, 6 more than Robert Williams III, who played 6. Isaiah Thomas had the first of his seasons in 2011-12, while Robert Williams III had his rookie season in 2018-19. With that starting point, here you can take a look at each of their seasons side by side and compare how their careers evolved in achivements, awards and championships won, the stats they recorded both in the Regular Season and the Playoffs and how their teams performed in the postseason.

Their Careers
Player	Total Seasons	Playoffs Played	NBA Years
Isaiah Thomas	12	4	2011-12 to 2023-24
Robert Williams III	6	5	2018-19 to 2023-24

Comparison Season by Season
Jump to season: 1-2-3-4-5-6-7-8-9-10-11-12


Rookie Season
	Isaiah Thomas	Robert Williams III
Season	2011-12	2018-19
Team	Sacramento Kings	Boston Celtics
Honors & Awards	All-Rookie Second Team	-
Playoffs	Did Not Play	Celtics Lost East Conf Semis

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	65	25.5	11.5	0.7	1.8	2.6	4.1	0.8	0.1	1.6	1.9	3.9	8.8	.448	1.3	3.4	.379	2.4	2.8	.832
Robert Williams III	32	8.8	2.5	0.8	1.7	2.5	0.2	0.3	1.3	0.3	1.1	1.1	1.6	.706	0.0	0.0	-	0.3	0.5	.600

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	3	4.3	1.3	0.3	2.0	2.3	0.0	0.0	0.0	0.0	0.3	0.3	0.7	.500	0.0	0.0	-	0.7	0.7	1.000


Season 2
	Isaiah Thomas	Robert Williams III
Season	2012-13	2019-20
Team	Sacramento Kings	Boston Celtics
Honors & Awards
Playoffs	Did Not Play	Celtics Lost East Conf Finals

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	79	26.9	13.9	0.4	1.7	2.0	4.0	0.8	0.0	1.8	2.1	4.6	10.5	.440	1.5	4.1	.358	3.2	3.6	.882
Robert Williams III	29	13.4	5.2	1.4	3.0	4.4	0.9	0.8	1.2	0.7	1.8	2.2	3.0	.727	0.0	0.0	-	0.8	1.2	.647

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	13	11.5	3.7	1.7	2.2	3.9	0.8	0.2	0.5	0.5	1.4	1.8	2.4	.742	0.0	0.1	.000	0.2	0.5	.333


Season 3
	Isaiah Thomas	Robert Williams III
Season	2013-14	2020-21
Team	Sacramento Kings	Boston Celtics
Honors & Awards
Playoffs	Did Not Play	Celtics Lost East Conf 1st Rd

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	72	34.7	20.3	0.7	2.3	2.9	6.3	1.3	0.1	3.0	2.6	6.9	15.2	.453	1.8	5.1	.349	4.8	5.7	.850
Robert Williams III	52	18.9	8.0	2.6	4.3	6.9	1.8	0.8	1.8	1.0	2.0	3.6	5.0	.721	0.0	0.0	.000	0.9	1.4	.616

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	3	15.3	6.3	2.7	2.3	5.0	0.7	0.3	3.0	0.3	2.3	3.0	4.7	.643	0.0	0.0	-	0.3	0.7	.500


Season 4
	Isaiah Thomas	Robert Williams III
Season	2014-15	2021-22
Team	Phoenix Suns, Boston Celtics	Boston Celtics
Honors & Awards	-	All-Defensive Second Team
Playoffs	Celtics Lost East Conf 1st Rd	Celtics Lost NBA Finals

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	67	25.8	16.4	0.5	1.8	2.3	4.2	0.9	0.1	2.1	2.2	5.0	11.9	.420	1.9	5.2	.373	4.5	5.2	.868
Robert Williams III	61	29.6	10.0	3.9	5.7	9.6	2.0	0.9	2.2	1.0	2.2	4.4	6.0	.736	0.0	0.0	.000	1.1	1.5	.722

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	4	29.8	17.5	0.3	2.8	3.0	7.0	0.8	0.0	3.5	2.5	4.5	13.5	.333	0.8	4.5	.167	7.8	8.0	.969
Robert Williams III	17	23.2	7.7	2.5	3.6	6.2	1.0	0.7	2.2	0.6	2.0	3.1	4.6	.679	0.0	0.1	.000	1.5	1.6	.893


Season 5
	Isaiah Thomas	Robert Williams III
Season	2015-16	2022-23
Team	Boston Celtics	Boston Celtics
Honors & Awards	All-Star Game	-
Playoffs	Celtics Lost East Conf 1st Rd	Celtics Lost East Conf Finals

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	82	32.2	22.2	0.6	2.4	3.0	6.2	1.1	0.1	2.7	2.0	7.2	16.9	.428	2.0	5.7	.359	5.8	6.6	.871
Robert Williams III	35	23.5	8.0	3.0	5.4	8.3	1.4	0.6	1.4	1.0	1.9	3.6	4.9	.747	0.0	0.0	.000	0.7	1.2	.610

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	6	36.7	24.2	0.3	2.7	3.0	5.0	0.7	0.8	2.3	3.0	7.8	19.8	.395	2.2	7.7	.283	6.3	7.8	.809
Robert Williams III	20	20.9	7.7	1.8	4.2	6.0	1.0	0.5	1.3	0.8	2.2	3.4	4.3	.788	0.0	0.1	.000	1.0	1.4	.679


Season 6
	Isaiah Thomas	Robert Williams III
Season	2016-17	2023-24
Team	Boston Celtics	Portland Trail Blazers
Honors & Awards	All-NBA Second Team	-
Honors & Awards	All-Star Game	-
Playoffs	Celtics Lost East Conf Finals	Did Not Play

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	76	33.8	28.9	0.6	2.1	2.7	5.9	0.9	0.2	2.8	2.2	9.0	19.4	.463	3.2	8.5	.379	7.8	8.5	.909
Robert Williams III	6	19.8	6.8	1.8	4.5	6.3	0.8	1.2	1.2	1.2	2.8	2.8	4.3	.654	0.0	0.0	-	1.2	1.5	.778

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	15	34.7	23.3	0.3	2.8	3.1	6.7	0.9	0.1	3.3	2.3	7.4	17.4	.425	2.4	7.2	.333	6.1	7.4	.820
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-


Season 7
	Isaiah Thomas	Robert Williams III
Season	2017-18	-
Team	Cleveland Cavaliers, Los Angeles Lakers	-
Honors & Awards
Playoffs	Did Not Play	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	32	26.9	15.2	0.5	1.6	2.1	4.8	0.5	0.1	3.0	1.8	4.9	13.2	.373	1.7	5.9	.293	3.7	4.1	.893
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-


Season 8
	Isaiah Thomas	Robert Williams III
Season	2018-19	-
Team	Denver Nuggets	-
Honors & Awards
Playoffs	Did Not Play	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	12	15.1	8.1	0.4	0.7	1.1	1.9	0.4	0.1	1.5	1.4	2.8	8.3	.343	1.0	3.6	.279	1.4	2.3	.630
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-


Season 9
	Isaiah Thomas	Robert Williams III
Season	2019-20	-
Team	Washington Wizards	-
Honors & Awards
Playoffs	Did Not Play	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	40	23.1	12.2	0.3	1.4	1.7	3.7	0.3	0.2	1.9	1.9	4.4	10.7	.408	2.0	4.7	.413	1.6	1.9	.816
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-


Season 10
	Isaiah Thomas	Robert Williams III
Season	2020-21	-
Team	New Orleans Pelicans	-
Honors & Awards
Playoffs	Did Not Play	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	3	16.0	7.7	0.3	1.0	1.3	1.7	0.3	0.0	2.0	1.0	3.0	9.0	.333	1.0	4.0	.250	0.7	0.7	1.000
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-


Season 11
	Isaiah Thomas	Robert Williams III
Season	2021-22	-
Team	Los Angeles Lakers, Dallas Mavericks, Charlotte Hornets	-
Honors & Awards
Playoffs	Did Not Play	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	22	15.2	8.4	0.2	1.1	1.3	1.5	0.3	0.2	0.7	1.5	3.0	7.6	.401	1.3	3.8	.337	1.0	1.2	.846
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Note: Isaiah Thomas didn't play in 2022-23.


Season 12
	Isaiah Thomas	Robert Williams III
Season	2023-24	-
Team	Phoenix Suns	-
Honors & Awards
Playoffs	Suns Lost West Conf 1st Rd	-

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Regular Season Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	6	3.2	1.3	0.0	0.0	0	0.5	0.0	0.0	0.0	0.0	0.5	1.7	.300	0.3	0.7	.500	0.0	0.0	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Playoffs Stats
	G	Min	Pts	ORb	DRb	Reb	Ast	Stl	Blk	TO	PF	FGM / A		%	3PM / A		%	FTM / A		%
Isaiah Thomas	1	4.0	0.0	0.0	0.0	0	0.0	0.0	0.0	1.0	0.0	0.0	2.0	.000	0.0	1.0	.000	0.0	0.0	-
Robert Williams III	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Isaiah Thomas vs. Robert Williams III Season by Season Comparison

Side by side comparison of each NBA season of Robert Williams III and Isaiah Thomas, from their rookie seasons to their last year played, in chronological order with awards, stats, championships and playoff performance of their teams every year.

Their Careers

Comparison Season by Season

Rookie Season

Season 2

Season 3

Season 4

Season 5

Season 6

Season 7

Season 8

Season 9

Season 10

Season 11

Season 12