Diana Taurasi had the most games by a player younger than 28 with 30+ points, with 26 games.

Interpreted as:

most 30 or more point regular-season games before turning 28 years old by a player

	NAME	GP	PTS	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF	+/-
1	Diana Taurasi D. Taurasi	26	871	34.6	33.5	6.0	3.7	1.5	1.4	10.5	19.7	53.2	4.5	9.2	48.5	8.0	8.9	90.5	70.9	0.9	5.1	2.7	900	157	95	40	36	71	90	+174
2	Angel McCoughtry A. McCoughtry	23	744	33.5	32.3	5.8	3.5	2.4	1.2	10.8	21.7	49.7	1.3	4.1	30.9	9.5	11.9	80.2	60.1	2.3	3.6	3.3	771	134	80	56	28	77	67	+178
3	Arike Ogunbowale A. Ogunbowale	22	743	37.0	33.8	4.0	4.1	2.0	0.1	11.0	22.8	48.4	4.7	9.3	50.2	7.0	7.5	93.3	64.7	0.7	3.3	2.6	814	88	90	44	2	57	56	+31
4	A'ja Wilson A. Wilson	20	690	34.8	34.5	10.9	2.1	1.6	2.9	12.8	20.5	62.6	0.6	1.2	50.0	8.3	9.5	87.4	70.0	2.1	8.9	1.6	695	218	42	32	57	31	41	+235
5	Maya Moore M. Moore	20	687	36.1	34.4	7.4	3.0	2.3	1.0	12.3	21.2	57.9	3.3	7.0	47.5	6.6	7.3	90.3	70.6	1.6	5.8	2.8	721	147	59	46	19	55	62	+194
6	Lauren Jackson L. Jackson	20	656	33.6	32.8	9.8	1.5	0.8	2.1	11.3	18.7	60.3	2.1	4.2	50.0	8.2	9.1	90.1	72.4	2.6	7.3	1.4	673	196	29	16	42	28	60	+227
7	Sabrina Ionescu S. Ionescu	18	579	35.3	32.2	5.9	5.8	1.8	0.2	10.7	19.2	55.5	5.1	10.0	50.6	5.8	6.3	92.0	73.2	1.1	4.9	3.4	636	107	105	33	4	61	29	+124
8	Breanna Stewart B. Stewart	16	525	35.6	32.8	9.1	3.0	1.5	1.5	11.6	20.6	56.5	2.8	5.9	47.9	6.8	8.6	78.3	67.4	1.7	7.4	2.1	570	146	48	24	24	33	34	+68
9	Elena Delle Donne E. Delle Donne	13	456	36.6	35.1	8.5	1.5	0.8	2.0	10.8	19.3	56.2	3.1	5.5	55.6	10.3	10.6	97.1	73.1	2.4	6.2	1.7	475	111	19	10	26	22	29	+84
10	Seimone Augustus S. Augustus	13	419	35.3	32.2	4.4	1.5	1.2	0.5	12.0	21.0	57.1	2.0	3.7	54.2	6.2	6.9	90.0	67.0	0.6	3.8	2.5	458	57	19	15	7	33	22	+43
11	Cappie Pondexter C. Pondexter	13	416	34.8	32.0	4.1	4.2	1.2	0.2	11.9	20.5	58.3	2.8	5.8	48.0	5.4	6.2	86.4	69.0	0.6	3.5	1.3	453	53	55	15	3	17	30	+34
12	Rhyne Howard R. Howard	10	344	37.8	34.4	4.9	3.9	1.8	0.6	11.8	22.9	51.5	5.6	13.1	42.7	5.2	6.9	75.4	66.3	1.2	3.7	2.2	378	49	39	18	6	22	28	+76
13	Napheesa Collier N. Collier	9	283	37.2	31.4	7.0	2.8	2.0	1.9	11.7	20.7	56.5	1.4	4.3	33.3	6.7	8.2	81.1	64.7	2.0	5.0	2.1	335	63	25	18	17	19	29	+43
14	Brittney Griner B. Griner	9	296	35.7	32.9	11.2	2.3	0.7	2.7	12.8	18.6	68.9	0.0	0.0		7.3	9.1	80.5	72.9	3.1	8.1	2.8	322	101	21	6	24	25	25	+131
15	Tina Charles T. Charles	9	278	34.4	30.9	9.6	2.2	1.1	0.8	13.0	21.7	60.0	0.2	0.7	33.3	4.7	5.9	79.2	63.7	3.3	6.2	1.1	310	86	20	10	7	10	14	+83
16	Candace Parker C. Parker	9	296	35.7	32.9	10.6	4.4	1.2	3.7	12.8	20.7	61.8	1.2	2.4	50.0	6.1	8.7	70.5	67.2	2.4	8.1	2.9	321	95	40	11	33	26	21	+46
17	Jewell Loyd J. Loyd	8	263	34.0	32.9	3.9	2.8	2.3	0.4	11.6	20.5	56.7	3.3	6.6	49.1	6.4	7.1	89.5	69.5	1.8	2.1	1.8	272	31	22	18	3	14	17	+51
18	Skylar Diggins S. Diggins	8	257	36.1	32.1	4.5	4.9	2.3	0.9	10.4	19.5	53.2	2.8	5.9	46.8	8.6	10.3	84.1	66.9	0.8	3.8	2.9	289	36	39	18	7	23	20	+65
19	Katie Smith K. Smith	8	282	39.5	35.3	4.1	2.1	1.3	0.4	9.6	18.8	51.3	5.3	9.0	58.3	10.8	12.6	85.1	72.5	0.6	3.5	3.0	316	33	17	10	3	24	22	+27
20	Epiphanny Prince E. Prince	7	216	36.5	30.9	3.6	4.6	2.7	0.4	10.0	18.3	54.7	4.4	7.3	60.8	6.4	7.0	91.8	72.2	0.6	3.0	2.7	256	25	32	19	3	19	19	+41
21	Penny Taylor P. Taylor	7	217	34.3	31.0	6.3	3.4	3.0	0.6	10.6	15.7	67.3	2.4	3.9	63.0	7.4	8.6	86.7	79.5	1.7	4.6	3.1	240	44	24	21	4	22	25	+94
22	Tamika Catchings T. Catchings	7	217	39.8	31.0	10.0	3.4	3.0	1.0	10.0	18.6	53.8	4.0	7.3	54.9	7.0	8.3	84.5	69.8	3.1	6.9	3.0	278	70	24	21	7	21	21	+21
23	Liz Cambage L. Cambage	6	238	33.3	39.7	12.0	2.5	0.5	2.2	14.3	20.8	68.8	1.3	2.2	61.5	9.7	12.0	80.6	76.0	3.8	8.2	3.2	200	72	15	3	13	19	16	+53
24	Odyssey Sims O. Sims	6	190	35.8	31.7	3.2	4.2	1.0	0.3	11.2	18.7	59.8	2.5	5.2	48.4	6.8	7.3	93.2	72.3	0.8	2.3	3.0	215	19	25	6	2	18	20	-3
25	Sylvia Fowles S. Fowles	6	194	34.2	32.3	12.3	0.3	1.0	2.7	10.8	16.5	65.7	0.0	0.0		10.7	12.5	85.3	73.5	4.8	7.5	1.8	205	74	2	6	16	11	10	+49