most career games with at least 40 points by a player who is at least 30 years old

Cynthia Cooper had the most games by a player 30 or older with 40+ points, with 2 games.

Interpreted as:
most career regular-season games with at least 40 points by a player who is at least 30 years old
NAMEGPPTSMPGPPGRPGAPGSPGBPGFGMFGAFG%3PM3PA3P%FTMFTAFT%TS%OREBDREBTPGMINREBASTSTLBLKTOVPF+/-
1Cynthia Cooper
C. Cooper
2
86
34.6
43.0
3.5
3.0
1.0
0.0
12.5
19.5
64.1
5.0
7.0
71.4
13.0
13.5
96.3
84.5
0.5
3.0
3.0
69
7
6
2
0
6
4
+23
2Diana Taurasi
D. Taurasi
1
42
30.2
42.0
4.0
2.0
0.0
0.0
12.0
21.0
57.1
6.0
13.0
46.2
12.0
12.0
100.0
79.9
1.0
3.0
3.0
30
4
2
0
0
3
3
+31
3DeWanna Bonner
D. Bonner
1
41
32.0
41.0
7.0
1.0
1.0
0.0
16.0
23.0
69.6
5.0
7.0
71.4
4.0
5.0
80.0
81.3
2.0
5.0
0.0
32
7
1
1
0
0
3
+29
4Betty Lennox
B. Lennox
1
44
38.9
44.0
9.0
7.0
3.0
0.0
17.0
32.0
53.1
5.0
12.0
41.7
5.0
6.0
83.3
63.5
3.0
6.0
2.0
39
9
7
3
0
2
3
-7
5Lisa Leslie
L. Leslie
1
41
35.2
41.0
13.0
3.0
3.0
1.0
16.0
23.0
69.6
2.0
2.0
100.0
7.0
9.0
77.8
76.0
5.0
8.0
2.0
35
13
3
3
1
2
1
+27
StatMuse has game-level data for games played, player age, and points going back to the 1997 season.