The Arizona Diamondbacks had their most runs per game in a season in 1999, with 5.6.

Interpreted as:

dbacks most runs per game in a regular season

	TEAM	R/G	R	G	SEASON	W%	W	L	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Diamondbacks	5.6	908	162	1999	.617	100	62	5,658	1,566	289	46	216	865	588	48	1,045	137	39	6,415	2,595	551	61	60	52	94	.277	.347	.459	.805
2	Diamondbacks	5.47	886	162	2024	.549	89	73	5,522	1,452	271	37	211	845	569	84	1,265	119	30	6,275	2,430	519	34	66	17	112	.263	.337	.440	.777
3	Diamondbacks	5.11	317	62	2025	.500	31	31	2,106	537	121	12	87	310	229	30	465	51	14	2,396	943	220	8	23	7	43	.255	.333	.448	.781
4	Diamondbacks	5.06	819	162	2002	.605	98	64	5,508	1,471	283	41	165	783	643	50	1,016	92	46	6,316	2,331	489	62	53	58	130	.267	.346	.423	.769
5	Diamondbacks	5.05	818	162	2001	.568	92	70	5,595	1,494	284	35	208	776	587	57	1,052	71	38	6,346	2,472	527	71	36	73	105	.267	.341	.442	.783
6	Diamondbacks	5.02	813	162	2019	.525	85	77	5,633	1,419	288	40	220	778	540	70	1,360	88	14	6,314	2,447	548	31	40	36	120	.252	.323	.434	.757
7	Diamondbacks	5.01	812	162	2017	.574	93	69	5,525	1,405	314	39	220	776	578	54	1,456	103	30	6,223	2,457	573	39	27	44	106	.254	.329	.445	.774
8	Diamondbacks	4.89	792	162	2000	.525	85	77	5,527	1,466	282	44	179	756	535	59	975	97	44	6,240	2,373	505	61	58	37	114	.265	.333	.429	.763
9	Diamondbacks	4.77	773	162	2006	.469	76	86	5,645	1,506	331	38	160	743	504	67	965	76	30	6,330	2,393	529	61	53	47	136	.267	.331	.424	.755
10	Diamondbacks	4.64	752	162	2016	.426	69	93	5,665	1,479	285	56	190	709	463	50	1,427	137	31	6,259	2,446	531	43	38	43	117	.261	.320	.432	.752
11	Diamondbacks	4.6	746	162	2023	.519	84	78	5,436	1,359	274	44	166	706	540	58	1,247	165	26	6,120	2,219	484	36	50	11	121	.250	.322	.408	.730
12	Diamondbacks	4.53	734	162	2012	.500	81	81	5,462	1,416	307	33	165	710	539	41	1,266	93	51	6,148	2,284	505	61	45	47	108	.259	.328	.418	.746
13	Diamondbacks	4.51	731	162	2011	.580	94	68	5,421	1,357	293	37	172	702	531	61	1,249	133	55	6,096	2,240	502	50	33	55	82	.250	.322	.413	.736
14	Diamondbacks	4.48	269	60	2020	.417	25	35	1,997	482	101	12	58	255	181	36	461	23	7	2,238	781	171	1	23	5	37	.241	.312	.391	.704
15	Diamondbacks	4.44	720	162	2015	.488	79	83	5,649	1,494	289	48	154	680	490	33	1,312	132	44	6,275	2,341	491	46	57	40	134	.264	.324	.414	.738
16	Diamondbacks	4.44	720	162	2009	.432	70	92	5,565	1,408	307	45	173	686	571	37	1,298	102	40	6,268	2,324	525	54	41	47	93	.253	.324	.418	.742
17	Diamondbacks	4.44	720	162	2008	.506	82	80	5,409	1,355	318	47	159	683	587	49	1,287	58	23	6,156	2,244	524	68	43	49	105	.251	.327	.415	.742
18	Diamondbacks	4.43	717	162	2003	.519	84	78	5,570	1,467	303	47	152	696	531	45	1,006	76	38	6,261	2,320	502	63	52	63	126	.263	.330	.417	.746
19	Diamondbacks	4.4	713	162	2010	.401	65	97	5,473	1,366	301	34	180	691	589	39	1,529	86	41	6,183	2,275	515	41	41	45	113	.250	.325	.416	.740
20	Diamondbacks	4.4	712	162	2007	.556	90	72	5,398	1,350	286	40	171	687	532	57	1,111	109	24	6,100	2,229	497	55	58	38	121	.250	.321	.413	.734
21	Diamondbacks	4.33	702	162	2022	.457	74	88	5,351	1,232	262	24	173	658	531	60	1,341	104	29	6,023	2,061	459	31	50	14	97	.230	.304	.385	.689
22	Diamondbacks	4.3	696	162	2005	.475	77	85	5,550	1,419	291	27	191	670	606	55	1,094	67	26	6,327	2,337	509	71	45	51	132	.256	.332	.421	.754
23	Diamondbacks	4.28	693	162	2018	.506	82	80	5,460	1,283	259	50	176	658	560	52	1,460	79	25	6,155	2,170	485	38	45	36	110	.235	.310	.397	.707
24	Diamondbacks	4.23	685	162	2013	.500	81	81	5,676	1,468	302	31	130	647	519	43	1,142	62	41	6,331	2,222	463	50	43	51	160	.259	.323	.391	.715
25	Diamondbacks	4.19	679	162	2021	.321	52	110	5,489	1,297	308	31	144	644	537	54	1,465	43	16	6,140	2,099	483	32	28	24	99	.236	.309	.382	.692