IROC XXIII

{{Use mdy dates|date=February 2025}}

{{Motorsport season

| series = International Race of Champions

| year = 1999

| previous = 1998

| next = 2000

| previouslink = IROC XXII

| nextlink = IROC XXIV

}}

File:Dale Earnhardt Nike 1997 - NASCAR Photography By Darryl Moran.jpg (seen in 1997), the IROC XXIII champion]]

IROC XXIII was the twenty-third season of IROC, the (International Race Of Champions), which started on February 12, 1999. The series used identically prepared Pontiac Firebird Trans Am race cars, and the contested races were held at Daytona International Speedway, Talladega Superspeedway, Michigan International Speedway, and Indianapolis Motor Speedway. Dale Earnhardt won the first three races of the season, including two last lap passes at Daytona and Talladega, and beating his son Dale Earnhardt Jr. at Michigan in a photo finish, to win the championship and $225,000.

The roster of drivers and final points standings were as follows:

class="wikitable" !Position !Driver !Points !Winnings !Series
1	{{flagicon|United States}} Dale Earnhardt	75	$225,000	NASCAR Winston Cup
2	{{flagicon|United States}} Mark Martin	74	$100,000	NASCAR Winston Cup
3	{{flagicon|United States}} Bobby Labonte	53	$60,000	NASCAR Winston Cup
4	{{flagicon|United States}} Rusty Wallace	50	$50,000	NASCAR Winston Cup
5	{{flagicon|United States}} Jeff Gordon	49	$45,000	NASCAR Winston Cup
6	{{flagicon|Sweden}} Kenny Bräck	34	$40,000	Indy Racing League
7	{{flagicon|United States}} Eddie Cheever	31	$40,000	Indy Racing League
8	{{flagicon|United States}} Dale Jarrett	30	$40,000	NASCAR Winston Cup
9	{{flagicon|United States}} Dale Earnhardt Jr.	29	$40,000	NASCAR Busch Series
10	{{flagicon|MEX}} Adrian Fernandez1	28	$40,000	FedEx CART World Series
11	{{flagicon|United States}} Jeff Burton	26	$40,000	NASCAR Winston Cup
12	{{flagicon|CAN}} Greg Moore	25	$40,000	FedEx CART World Series