Between the 2009-10 and 2018-19 seasons, Tony Allen had the most steals per game by a small forward, with 2.0 per game.

Interpreted as:

best NBA spg with a minimum of 41 games played per 82 team games avg by sf 2010s

NAME	SPG	GP	MPG	PPG	RPG	APG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Tony Allen	2.0	63	26.2	8.6	4.4	1.4	0.5	1.4	3.6	7.2	49.5	0.2	0.5	34.5	1.3	2.0	62.7	1,648	539	280	86	129	30	86	166	+251
Paul George	1.9	477	36.1	22.5	6.9	3.7	0.4	2.9	7.5	17.5	43.2	2.7	7.2	38.1	4.6	5.5	85.0	17,201	10,709	3,297	1,777	901	203	1,371	1,319	+1827
Kawhi Leonard	1.8	467	30.8	17.7	6.3	2.4	0.7	1.5	6.4	12.9	49.5	1.4	3.6	38.3	3.5	4.1	84.8	14,404	8,250	2,950	1,123	829	313	679	793	+2764
Robert Covington	1.7	319	30.4	13.0	5.6	1.6	0.8	1.8	4.3	10.7	40.2	2.4	6.6	36.0	2.0	2.5	81.3	9,706	4,139	1,797	506	540	259	575	988	+27
Trevor Ariza	1.7	700	34.2	12.3	5.3	2.6	0.3	1.5	4.4	10.6	41.1	2.0	5.6	35.4	1.6	2.1	76.0	23,911	8,633	3,715	1,806	1,161	233	1,056	1,424	+662
Jimmy Butler	1.5	223	32.0	16.8	5.1	3.6	0.5	1.4	5.5	12.0	46.0	0.9	2.4	36.3	4.9	5.7	85.1	7,128	3,736	1,140	795	344	102	316	320	+419
LeBron James	1.5	573	37.2	26.9	7.7	7.8	0.7	3.7	9.9	19.0	51.9	1.5	4.4	34.5	5.7	7.7	73.0	21,315	15,425	4,430	4,464	857	423	2,126	1,020	+3599
Justin Holiday	1.5	82	31.8	10.5	3.9	1.8	0.4	1.3	3.7	9.5	38.6	2.0	5.7	34.8	1.2	1.3	89.6	2,607	857	323	146	121	36	104	164	-448
Josh Smith	1.4	77	35.5	16.4	6.8	3.3	1.4	2.6	6.7	16.0	41.9	0.9	3.4	26.4	2.1	3.9	53.2	2,730	1,264	520	252	105	110	199	197	-193
P.J. Tucker	1.4	322	30.0	8.3	6.3	1.7	0.3	1.2	3.0	7.1	42.4	0.9	2.6	35.4	1.4	1.8	75.6	9,649	2,665	2,014	539	439	85	375	781	-348
Gerald Wallace	1.4	364	32.0	11.4	6.3	2.3	0.7	1.8	4.0	8.6	45.8	0.6	1.9	32.0	2.9	4.0	72.8	11,666	4,163	2,305	833	492	246	666	738	+355
Rudy Gay	1.3	584	35.3	18.6	6.2	2.6	0.8	2.4	7.0	15.4	45.8	1.0	2.9	34.8	3.5	4.3	80.8	20,609	10,835	3,638	1,499	781	438	1,397	1,402	+439
Otto Porter Jr.	1.3	325	28.7	12.1	5.4	1.6	0.5	0.8	4.7	9.7	48.7	1.5	3.7	41.1	1.2	1.5	80.2	9,315	3,938	1,768	528	427	147	268	641	+496
Kent Bazemore	1.3	75	27.8	11.6	5.1	2.3	0.5	1.8	4.3	9.7	44.1	1.5	4.1	35.7	1.6	2.0	81.5	2,083	872	379	171	98	38	138	176	+76
Andrei Kirilenko	1.3	231	28.4	10.6	4.8	2.6	1.0	1.6	3.7	7.5	49.5	0.4	1.4	31.4	2.7	3.8	72.3	6,571	2,455	1,099	599	300	226	369	362	+126
Andre Iguodala	1.3	624	30.3	9.8	4.7	4.2	0.5	1.5	3.6	7.8	46.5	0.9	2.7	34.2	1.6	2.4	67.2	18,910	6,113	2,912	2,630	797	313	915	942	+2702
Corey Brewer	1.3	638	22.2	8.6	2.6	1.4	0.3	1.1	3.2	7.5	42.9	0.6	2.3	27.5	1.5	2.1	71.8	14,141	5,474	1,659	919	811	165	682	1,312	+275
Josh Richardson	1.3	207	33.1	13.5	3.5	3.2	0.7	1.5	4.9	11.7	42.2	1.8	4.9	35.8	1.8	2.2	84.2	6,842	2,793	716	669	260	148	318	531	+115
Carlos Delfino	1.2	245	29.0	10.6	4.2	2.3	0.2	1.3	3.8	9.5	40.2	2.0	5.3	36.9	1.0	1.2	80.2	7,095	2,586	1,022	572	303	48	314	423	+93
Metta Sandiford-Artest	1.2	387	26.9	8.6	3.5	1.9	0.4	1.1	3.1	7.9	39.4	1.1	3.4	33.5	1.2	1.8	68.3	10,403	3,336	1,356	716	477	147	419	810	+895
Khris Middleton	1.2	376	30.8	15.1	4.6	3.0	0.2	1.8	5.6	12.3	45.3	1.6	4.2	38.6	2.4	2.8	86.4	11,577	5,695	1,720	1,137	460	70	677	1,000	+701
Evan Fournier	1.2	79	32.5	15.4	2.8	2.7	0.0	1.7	5.4	11.8	46.2	2.0	4.9	40.0	2.5	3.0	83.6	2,566	1,213	225	214	96	2	133	214	-191
Andre Roberson	1.2	79	30.1	6.6	5.1	1.0	1.0	0.6	2.7	5.9	46.4	0.6	2.3	24.5	0.6	1.4	42.3	2,376	522	403	79	94	79	51	204	+145
Thabo Sefolosha	1.2	277	20.7	6.2	4.0	1.3	0.4	0.8	2.4	5.1	46.7	0.6	1.7	36.0	0.8	1.1	71.4	5,745	1,704	1,111	349	329	106	219	373	+264
Wesley Matthews	1.1	223	33.8	13.8	3.1	2.2	0.2	1.3	4.7	11.3	41.7	2.2	5.9	38.0	2.1	2.5	84.5	7,537	3,079	694	487	256	42	299	514	-62