Joey Logano leads first Cup practice from Las Vegas

Logano's 189.653mph lap led the way among playoff contenders and was also the fastest of all.

Fellow Ford drivers Kevin Harvick and Aric Almirola were not far behind with laps of 189.460mph and 188.864mph. Erik Jones and Kurt Busch rounded out the top-five.

Jamie McMurray was the top non-playoff driver in tenth on the speed charts.

Jimmie Johnson was the slowest of the 16 playoff drivers, clocking in 21st.

Very few drivers ran more than ten laps during the opening practice with Ty Dillon running the most at 18.

The session went incident-free, but there were several practice holds (listed below).

15-minute holds

Failed pre-race inspection twice:  No. 3 (Darlington); No. 7 (Bristol)

Late to inspection: No. 42; No. 51

Missing the rookie meeting: No. 15

30-minute holds

Failed pre-race inspection three or more times at Indianapolis: No. 78; No. 19

Cla	#	Driver	4506	Laps	Time	Gap	Interval	Mph
1	22	Joey Logano	Ford	5	28.473			189.653
2	4	Kevin Harvick	Ford	5	28.502	0.029	0.029	189.460
3	10	Aric Almirola	Ford	5	28.592	0.119	0.090	188.864
4	20	Erik Jones	Toyota	5	28.626	0.153	0.034	188.640
5	41	Kurt Busch	Ford	5	28.702	0.229	0.076	188.140
6	18	Kyle Busch	Toyota	7	28.714	0.241	0.012	188.062
7	11	Denny Hamlin	Toyota	7	28.730	0.257	0.016	187.957
8	78	Martin Truex Jr.	Toyota	5	28.765	0.292	0.035	187.728
9	14	Clint Bowyer	Ford	5	28.773	0.300	0.008	187.676
10	1	Jamie McMurray	Chevrolet	5	28.779	0.306	0.006	187.637
11	31	Ryan Newman	Chevrolet	9	28.781	0.308	0.002	187.624
12	42	Kyle Larson	Chevrolet	5	28.799	0.326	0.018	187.507
13	9	Chase Elliott	Chevrolet	5	28.839	0.366	0.040	187.246
14	17	Ricky Stenhouse Jr.	Ford	5	28.847	0.374	0.008	187.195
15	12	Ryan Blaney	Ford	7	28.872	0.399	0.025	187.032
16	2	Brad Keselowski	Ford	5	28.905	0.432	0.033	186.819
17	21	Paul Menard	Ford	5	28.908	0.435	0.003	186.800
18	3	Austin Dillon	Chevrolet	5	28.952	0.479	0.044	186.516
19	88	Alex Bowman	Chevrolet	5	28.959	0.486	0.007	186.471
20	24	William Byron	Chevrolet	10	28.965	0.492	0.006	186.432
21	48	Jimmie Johnson	Chevrolet	8	29.002	0.529	0.037	186.194
22	38	David Ragan	Ford	5	29.016	0.543	0.014	186.104
23	37	Chris Buescher	Chevrolet	13	29.097	0.624	0.081	185.586
24	47	A.J. Allmendinger	Chevrolet	12	29.119	0.646	0.022	185.446
25	6	Trevor Bayne	Ford	7	29.154	0.681	0.035	185.223
26	32	Matt DiBenedetto	Ford	5	29.176	0.703	0.022	185.084
27	34	Michael McDowell	Ford	5	29.179	0.706	0.003	185.065
28	95	Regan Smith	Chevrolet	10	29.297	0.824	0.118	184.319
29	19	Daniel Suarez	Toyota	3	29.301	0.828	0.004	184.294
30	13	Ty Dillon	Chevrolet	18	29.357	0.884	0.056	183.943
31	43	Darrell Wallace Jr.	Chevrolet	16	29.810	1.337	0.453	181.147
32	96	Jeffrey Earnhardt	Toyota	8	30.452	1.979	0.642	177.328
33	23	J.J. Yeley	Toyota	6	30.580	2.107	0.128	176.586
34	15	Ross Chastain	Chevrolet	5	30.781	2.308	0.201	175.433
35	72	Corey Lajoie	Chevrolet	9	30.852	2.379	0.071	175.029
36	00	Landon Cassill	Chevrolet	4	31.045	2.572	0.193	173.941
37	99	Kyle Weatherman	Chevrolet	3	31.347	2.874	0.302	172.265
38	7	Reed Sorenson	Chevrolet	3	31.374	2.901	0.027	172.117
39	66	Timmy Hill	Toyota	4	31.634	3.161	0.260	170.702
40	51	B.J. McLeod	Ford

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