I don't have anything for this season, but Barcelona had the most points by a club in LaLiga in 2024-25, with 88 points.

most points lost after being ahead this season

	CLUB	POINTS	L	SEASON	M	W	D	G	GC	xG	xGA	SH	SOT	PASS-ATT	PASS	POSS%	FOUL	YC	RC
1	Barcelona	88	6	2024-25	38	28	4	102	39	92.99	42.31	677	252	24,283	21,539	69.1	368	63	3
2	Real Madrid	84	6	2024-25	38	26	6	78	38	79.09	45.48	634	249	22,953	20,659	60.6	332	57	4
3	Atlético Madrid	76	6	2024-25	38	22	10	68	30	66.21	34.16	469	181	19,890	16,987	52.5	412	75	3
4	Athletic Club	70	6	2024-25	38	19	13	54	29	53.75	39.21	469	154	15,769	12,808	48.4	482	64	3
5	Villarreal	70	8	2024-25	38	20	10	71	51	67.24	46.13	538	179	16,445	13,781	47.5	442	96	4
6	Real Betis	60	10	2024-25	38	16	12	57	50	56.17	51.59	528	188	17,834	15,000	52.5	433	75	4
7	Celta Vigo	55	15	2024-25	38	16	7	59	57	55.67	43.06	450	181	19,904	17,011	53.7	462	84	6
8	Osasuna	52	10	2024-25	38	12	16	48	52	45.59	53.56	418	132	14,396	11,421	46.0	508	88	0
9	Rayo	52	12	2024-25	38	13	13	41	45	47.07	50.86	516	166	16,201	13,073	51.7	522	96	3
10	Mallorca	48	16	2024-25	38	13	9	35	44	40.44	48.64	386	113	14,734	11,896	46.6	466	81	6
11	Real Sociedad	46	18	2024-25	38	13	7	35	46	43.03	44.50	389	131	17,214	14,200	54.0	501	85	4
12	Valencia	46	14	2024-25	38	11	13	44	54	43.63	54.54	385	125	16,159	13,182	48.3	442	86	1
13	Alavés	42	16	2024-25	38	10	12	38	48	44.62	47.62	404	135	13,165	9,810	45.2	623	107	5
14	Getafe	42	18	2024-25	38	11	9	34	39	37.97	46.83	434	130	11,372	8,025	41.3	602	110	7
15	Espanyol	42	18	2024-25	38	11	9	40	51	35.95	56.07	356	104	12,674	9,913	39.6	498	88	1
16	Girona	41	19	2024-25	38	11	8	44	60	43.54	51.11	402	141	19,886	17,501	56.4	437	76	2
17	Sevilla	41	17	2024-25	38	10	11	42	55	42.44	48.79	475	156	16,652	13,730	50.5	494	98	8
18	Leganés	40	16	2024-25	38	9	13	39	56	37.30	62.04	352	117	13,697	10,639	42.4	503	82	6
19	Las Palmas	32	22	2024-25	38	8	8	40	61	37.02	69.08	412	141	16,700	13,597	50.9	452	110	4
20	Real Valladolid	16	30	2024-25	38	4	4	26	90	35.67	69.81	336	105	14,065	11,431	42.7	459	91	5