Russell Westbrook and Oscar Robertson are tied for playing the most seasons with 20.0+ points per game and 10.0+ assists per game, with 5 seasons.

who has the most seasons averaging 20 points per game and 10 assists per game

Interpreted as:

Who has the most seasons averaging 20 or higher points per game and 10 or higher assists per game?

NAME	SEAS	PPG	APG	GP	MPG	RPG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Russell Westbrook	5	25.3	10.7	379	35.5	10.2	1.8	0.3	4.7	9.0	20.5	43.8	1.6	5.1	31.2	5.7	7.5	75.9	13,464	9,584	3,851	4,041	673	127	1,798	1,025	+1474
Oscar Robertson	5	30.9	11.1	388	45.0	9.1				10.7	22.3	48.2				9.4	11.2	84.2	17,444	11,981	3,514	4,320				1,196
James Harden	4	24.5	10.8	248	36.7	7.5	1.3	0.6	4.5	7.2	16.5	43.7	2.8	7.9	35.4	7.3	8.5	86.0	9,110	6,087	1,861	2,667	327	138	1,120	579	+977
Isiah Thomas	4	21.0	11.5	321	37.1	4.0	2.2	0.3	3.9	7.9	17.0	46.7	0.3	1.1	26.7	4.8	6.2	77.4	11,899	6,748	1,284	3,680	715	98	1,241	1,108
Kevin Johnson	3	21.7	11.3	232	37.6	3.8	1.7	0.2	3.7	7.5	14.8	50.7	0.1	0.5	17.8	6.6	7.7	85.4	8,733	5,025	881	2,618	393	49	854	543
Magic Johnson	3	22.9	12.2	236	37.0	6.9	1.7	0.4	3.8	7.7	15.2	50.5	0.7	2.1	34.4	6.8	7.8	88.2	8,727	5,404	1,633	2,872	408	92	901	507
Trae Young	2	26.0	10.4	127	35.3	2.9	1.2	0.2	4.2	8.1	18.9	43.0	2.6	7.3	35.4	7.2	8.2	87.4	4,483	3,303	366	1,324	152	20	535	213	-16
Tyrese Haliburton	2	20.4	10.7	125	32.9	3.8	1.4	0.6	2.4	7.3	15.1	48.3	2.8	7.5	38.0	3.0	3.4	86.2	4,107	2,549	476	1,337	174	73	300	144	+258
Chris Paul	2	21.9	11.3	158	38.0	4.8	2.7	0.1	2.7	8.0	16.1	49.5	1.0	2.7	36.7	5.0	5.8	86.1	6,008	3,465	753	1,786	433	14	432	397	+829
LeBron James	1	25.3	10.2	67	34.6	7.8	1.2	0.5	3.9	9.6	19.4	49.3	2.2	6.3	34.8	3.9	5.7	69.3	2,316	1,698	525	684	78	36	261	118	+441
John Wall	1	23.1	10.7	78	36.4	4.2	2.0	0.6	4.1	8.3	18.4	45.1	1.1	3.5	32.7	5.4	6.8	80.1	2,836	1,805	326	831	157	49	322	151	+248
Deron Williams	1	20.1	10.3	65	37.9	4.0	1.2	0.2	3.5	6.6	15.0	43.9	1.6	4.9	33.1	5.4	6.3	84.5	2,465	1,309	260	667	79	15	230	190	-118
Tim Hardaway	1	21.5	10.6	66	39.5	4.0	1.8	0.2	3.3	7.9	17.7	44.7	1.5	4.7	33.0	4.1	5.6	74.4	2,609	1,419	263	699	116	12	220	152
Michael Adams	1	26.5	10.5	66	35.5	3.9	2.2	0.1	3.6	8.5	21.5	39.4	2.5	8.5	29.6	7.0	8.0	87.9	2,346	1,752	256	693	147	6	240	162
Nate Archibald	1	34.0	11.4	80	46.0	2.8				12.9	26.3	48.8				8.3	9.8	84.7	3,681	2,719	223	910				207