Austin Cindric fastest in Saturday's Darlington Cup practice

Cindric was fastest overall with an average speed of 167.698 mph while William Byron ended up second (166.495 mph) but topped all drivers in Group B.

Erik Jones was third-fastest (166.483 mph), Tyler Reddick fourth and Martin Truex Jr. completed the top-five.

Cindric, Byron and Reddick are among the 16 drivers competing in the Cup Series playoffs.

Among those drivers who completed at least 10 consecutive laps, Truex had the fastest average speed (163.055 mph), followed by Chastain and Cindric.

Group B

Byron topped the second 20-minute session with an average lap speed of 166.495 mph.

Reddick was second-fastest (166.359 mph) and Ricky Stenhouse Jr. was third (166.045 mph).

Ross Chastain was fourth and Denny Hamlin completed the top-five.

There were no on-track incidents during the session.

Group A

Cindric ended up fastest in the first 20-minute session with an average lap speed of 167.698 mph.

Jones was second-quick (166.483 mph) and Truex was third (166.056 mph).

Cole Custer was fourth and Joey Logano rounded out the top-five.

Logano completed the most laps (37) in the session, which had no on-track incidents.

Cla	#	Driver		Manufacturer	Laps	Time	Gap	Interval	Mph
1	2	Austin Cindric		Ford	24	29.324			167.699
2	24	William Byron		Chevrolet	25	29.536	0.212	0.212	166.495
3	43	Erik Jones		Chevrolet	20	29.538	0.214	0.002	166.484
4	8	Tyler Reddick		Chevrolet	25	29.560	0.236	0.022	166.360
5	19	Martin Truex Jr.		Toyota	24	29.614	0.290	0.054	166.057
6	47	Ricky Stenhouse Jr.		Chevrolet	20	29.616	0.292	0.002	166.045
7	41	Cole Custer		Ford	21	29.632	0.308	0.016	165.956
8	1	Ross Chastain		Chevrolet	25	29.676	0.352	0.044	165.710
9	11	Denny Hamlin		Toyota	31	29.711	0.387	0.035	165.514
10	22	Joey Logano		Ford	37	29.770	0.446	0.059	165.186
11	21	Harrison Burton		Ford	24	29.771	0.447	0.001	165.181
12	48	Alex Bowman		Chevrolet	22	29.787	0.463	0.016	165.092
13	10	Aric Almirola		Ford	28	29.828	0.504	0.041	164.865
14	9	Chase Elliott		Chevrolet	26	29.830	0.506	0.002	164.854
15	20	Christopher Bell		Toyota	29	29.837	0.513	0.007	164.815
16	99	Daniel Suarez		Chevrolet	26	29.839	0.515	0.002	164.804
17	34	Michael McDowell		Ford	23	29.871	0.547	0.032	164.628
18	6	Brad Keselowski		Ford	25	29.874	0.550	0.003	164.611
19	5	Kyle Larson		Chevrolet	24	29.890	0.566	0.016	164.523
20	42	Ty Dillon		Chevrolet	24	29.908	0.584	0.018	164.424
21	12	Ryan Blaney		Ford	36	29.913	0.589	0.005	164.397
22	45	Bubba Wallace		Toyota	34	29.936	0.612	0.023	164.270
23	18	Kyle Busch		Toyota	34	29.939	0.615	0.003	164.254
24	14	Chase Briscoe		Ford	17	29.956	0.632	0.017	164.161
25	16	Daniel Hemric		Chevrolet	20	29.996	0.672	0.040	163.942
26	31	Justin Haley		Chevrolet	21	30.099	0.775	0.103	163.381
27	4	Kevin Harvick		Ford	28	30.115	0.791	0.016	163.294
28	15	J.J. Yeley		Ford	15	30.119	0.795	0.004	163.272
29	7	Corey Lajoie		Chevrolet	23	30.140	0.816	0.021	163.159
30	3	Austin Dillon		Chevrolet	27	30.164	0.840	0.024	163.029
31	51	Cody Ware		Ford	19	30.178	0.854	0.014	162.953
32	17	Chris Buescher		Ford	28	30.186	0.862	0.008	162.910
33	23	Ty Gibbs		Toyota	25	30.229	0.905	0.043	162.678
34	77	Landon Cassill		Chevrolet	21	30.327	1.003	0.098	162.153
35	38	Todd Gilliland		Ford	23	30.513	1.189	0.186	161.164
36	78	B.J. McLeod		Ford	4	31.407	2.083	0.894	156.577