IROC XIII explained

IROC XIII was the thirteenth year of IROC competition, which took place in 1989. it saw the use of the Chevrolet Camaro in all races for the final year, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Nazareth Speedway, race three ran at Michigan International Speedway, and race four concluded the year at Watkins Glen International. Terry Labonte won the series championship and $204,900.

The roster of drivers and final points standings were as follows: ^[1]

Rank	Driver	Points	Winnings	Series
1		72	$204,900	NASCAR Winston Cup Series 4th in 1988 Winston Cup points
2		60	$92,500	CART PPG IndyCar World Series 2nd in 1988 IndyCar points 2 time and defending IROC Champion
3		58	$66,200	NASCAR Winston Cup Series 2nd in 1988 Winston Cup points
4		57	$58,900	NASCAR Winston Cup Series 3rd in 1988 Winston Cup points 3 time Winston Cup champion
5		51	$55,700	IMSA Camel GTO 1988 GTO Champion 1988 24 Hours of Daytona GTO winner
6	Bill Elliott	38	$52,000	NASCAR Winston Cup Series 1988 Winston Cup champion 2 time Daytona 500 winner
7		36	$54,000	CART PPG IndyCar World Series 4 time Indianapolis 500 winner 7 time IndyCar Champion IROC III & IROC IV champion
8		35	$49,400	CART PPG IndyCar World Series 1988 IndyCar champion 1985 Indianapolis 500 winner
9	Hurley Haywood	31	$46,000	SCCA Trans-Am Series 1988 Trans-Am Champion
10	Geoff Brabham ^1	24	$44,400	IMSA Camel GTP 1988 GTP Champion 2 time 24 Hours of Le Mans winner
11	Rick Mears ^1	24	$42,100	CART PPG IndyCar World Series 3 time Indianapolis 500 winner 3 time IndyCar Champion 4th in 1988 IndyCar points
12		16	$40,400	NASCAR Winston Cup Series 7 time Winston Cup Champion 7 time Daytona 500 winner Most ever NASCAR Cup race victories (200)

Race results

Race One, Daytona International Speedway

Friday, February 17, 1989

Finish	Grid	Car no.	Driver	Car Make	Car Color	Laps	Status	Laps Led	Points
1	12	12				40	0:32:37	5	23 (2)
2	5	5				40	Flagged	6	20 (3)
3	7	7			White	40	Flagged	20	19 (5)
4	10	10			Lime	40	Flagged	5	14 (2)
5	3	3			Powder Blue	40	Flagged		10
6	9	9			Yellow	40	Flagged		9
7	2	2				40	Flagged		8
8	1	1				40	Flagged	1	7
9	6	6				40	Flagged	3	6
10	8	8				40	Flagged		5
11	11	11				40	Flagged		4
12	4	4				39	Flagged		3

(5) Indicates 5 bonus points added to normal race points scored for leading the most laps.
(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps
(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps.

Average speed: 183.955mph
Cautions: none
Margin of victory: 1 cl
Lead changes: 9

Race Two, Nazareth Speedway

Saturday, April 29, 1989

Finish	Grid	Car no.	Driver	Car Make	Car Color	Laps	Status	Laps Led	Points
1	1	12				75	0:45:40	14	23 (2)
2	3	10				75	Flagged	17	20 (3)
3	11	1			White	75	Flagged	4	14
4	9	4			Light Blue	75	Flagged		12
5	4	7				75	Flagged	40	15 (5)
6	10	2				74	Flagged		9
7	8	3				74	Flagged		8
8	12	11	Geoff Brabham ^2		Yellow	74	Flagged		7
9	7	6			Light Orange	74	Flagged		6
10	5	8			Cream	74	Flagged		5
11	6	5				73	Flagged		4
12	2	9				73	Flagged		3

(5) Indicates 5 bonus points added to normal race points scored for leading the most laps.
(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps
(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps.Average speed: 98.54mph
Cautions: 3
Margin of victory: 13.45 sec
Lead changes: 6

Lap Leader Breakdown

Driver	From Lap	To Lap	Number of Laps
Danny Sullivan	1	1	1
Scott Pruett	2	15	14
A. J. Foyt	18	36	19
Rusty Wallace	37	40	4
A. J. Foyt	41	59	19
Scott Pruett	60	62	3
Danny Sullivan	63	75	13

Race Three, Michigan International Speedway

Saturday, August 5, 1989

Finish	Grid	Car no.	Driver	Car Make	Car Color	Laps	Status	Laps Led	Points
1	11	2			Light Blue	50	0:37:54	33	26 (5)
2	10	3				50	Flagged	9	20 (3)
3	12	1				50	Flagged	3	14
4	4	9				50	Flagged		12
5	7	6				50	Flagged		10
6	8	5			Tan	50	Flagged		9
7	6	7				50	Flagged		8
8	5	8			Lime	50	Flagged		7
9	3	10			Powder Blue	50	Flagged		6
10	9	4			Yellow	50	Flagged		5
11	1	12				50	Flagged	1	4
12	2	11			White	50	Flagged	4	5 (2)

(5) Indicates 5 bonus points added to normal race points scored for leading the most laps.
(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps
(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps.

Average speed: 158.343 mph
Cautions: none
Margin of victory: .47 sec
Lead changes: 8

Race Four, Watkins Glen International

Saturday, August 12, 1989

Finish	Grid	Car no.	Driver	Car Make	Car Color	Laps	Status	Laps Led	Points
1	4	4				30	0:39:08	20	26 (5)
2	5	5				30	Flagged		17
3	1	1			Cream	30	Flagged	10	17 (3)
4	8	8				30	Flagged		12
5	3	3				30	Flagged		10
6	9	9			Yellow	30	Flagged		9
7	12	11				30	Flagged		8
8	2	2			Powder Blue	30	Flagged		7
9	10	10			White	29	Flagged		6
10	6	6			Light Blue	28	Flagged		5
11	7	7				27	Flagged		4
12	11	12				17	Crash		3

(5) Indicates 5 bonus points added to normal race points scored for leading the most laps.
(3) Indicates 3 bonus points added to normal race points scored for leading the 2nd most laps
(2) Indicates 2 bonus points added to normal race points scored for leading the 3rd most laps (did not occur in this race so not awarded).

Average speed: 111.68mph
Cautions: none
Margin of victory: 1.3 sec
Lead changes: 1

Lap Leader Breakdown

Driver	From Lap	To Lap	Number of Laps
Terry Labonte	1	10	10
Al Unser Jr.	11	30	20

Notes

1. Geoff Brabham and Rick Mears tied for tenth place in the championship standings, but Brabham was awarded the position due to a higher finishing position in the final race.
2. Geoff Brabham started from the back of the field in a back up car after an accident on the first lap.

External links

• IROC XIII History - IROC Website

Notes and References

1. http://racing-reference.info/raceyear?yr=1989&series=I IROC season statistics at racing-reference.info