most goals per 90 in a season in top 5 leagues:

Agustín Sauto has the most goals per 90 in Europe's top five leagues in a season, with 1.71 in LaLiga in 1930-31.

Interpreted as:

most goals per 90 with a minimum of 30 min per team match by a player in a season in top 5 leagues:

	NAME	G/90	G	SEASON	CLUB	RTG	M	MIN	START	G/M	A	G+A	PK	FK	SH	SOT	WOOD	TCH	TCH-BOX	OFF
1	Agustín Sauto A. Sauto	1.71	29	1930-31	Athletic Club		17	1,530	17	1.71			0
2	Lionel Messi L. Messi	1.56	46	2012-13	Barcelona		32	2,646	28	1.44			4
3	Harry Kane H. Kane	1.53	12	2025-26	Bayern	8.07	9	704	8	1.33	3	15	4	0	30	19	1	355	47	6
4	Prudencio Sánchez P. Sánchez	1.50	33	1940-41	Atlético Aviación		22	1,980	22	1.50			0
5	Isidro Lángara I. Lángara	1.50	27	1933-34	Oviedo		18	1,620	18	1.50			2
6	Robert Lewandowski R. Lewandowski	1.50	41	2020-21	Bayern		29	2,463	28	1.41	7	48	8	0	137	67	8	1,092	219	21
7	Victorio Unamuno V. Unamuno	1.43	10	1932-33	Athletic Club		7	630	7	1.43			0
8	Telmo Zarra T. Zarra	1.42	34	1946-47	Atlético de Bilbao		24	2,160	24	1.42			0
9	Cristiano Ronaldo C. Ronaldo	1.39	48	2014-15	Real Madrid		35	3,098	35	1.37	15	63	10	2	225	99	8	1,887	0	39
10	Luis Muriel L. Muriel	1.38	22	2020-21	Atalanta		36	1,431	16	0.61	7	29	2	0	86	39	2	1,122	149	4
11	Lionel Messi L. Messi	1.38	50	2011-12	Barcelona		37	3,269	36	1.35			10
12	Manuel Badenes M. Badenes	1.38	22	1954-55	Valencia		16	1,440	16	1.38			0
13	László Kubala L. Kubala	1.37	26	1951-52	Barcelona		19	1,710	19	1.37			4
14	Erling Haaland E. Haaland	1.36	13	2025-26	Man City	8.04	10	858	10	1.30	1	14	0	0	43	25	1	227	69	0
15	Paco Alcácer P. Alcácer	1.35	18	2018-19	Dortmund		26	1,203	11	0.69	0	18	1	3	52	28	2	424	73	9
16	Zlatan Ibrahimovic Z. Ibrahimovic	1.34	38	2015-16	PSG		31	2,554	29	1.23	12	50	5	1	155	81	1	1,856	0	51
17	Telmo Zarra T. Zarra	1.33	24	1945-46	Atlético de Bilbao		18	1,620	18	1.33			0
18	Isidro Lángara I. Lángara	1.33	28	1935-36	Oviedo		21	1,890	21	1.33			2
19	Mariano Martín M. Martín	1.30	30	1942-43	Barcelona		23	2,070	23	1.30			0
20	Luis Muriel L. Muriel	1.30	18	2019-20	Atalanta		34	1,246	10	0.53	1	19	6	2	77	41	3	861	128	3
21	Armando Merodio A. Merodio	1.27	14	1958-59	Atlético de Bilbao		11	990	11	1.27			0
22	Kylian Mbappé K. Mbappé	1.27	33	2018-19	PSG		29	2,342	24	1.14	7	40	1	0	125	71	4	1,275	239	30
23	Telmo Zarra T. Zarra	1.27	38	1950-51	Atlético de Bilbao		30	2,700	30	1.27			8
24	Santiago Urtizberea S. Urtizberea	1.25	10	1932-33	Donostia		8	720	8	1.25			0
25	Esteban Echevarría E. Echevarría	1.24	26	1943-44	Oviedo		21	1,890	21	1.24			0