Date

Site

Course

Distance
(Miles)

Winner

Car

Speed
(mph)

Speed
(kph)

04/10/88

Phoenix

Oval

200

Mario Andretti

Lola-Chevrolet

121.992

196.285

04/17/88

Long Beach

Road

158.650

Al Unser Jr.

March-Chevrolet

83.665

134.617

05/29/88

Indianapolis+

Oval

500

Rick Mears

Penske-Chevrolet

144.809

232.998

06/05/88

Milwaukee

Oval

200

Rick Mears

Penske-Chevrolet

122.819

197.616

06/19/88

Portland

Road

200

Danny Sullivan

Penske-Chevrolet

102.253

164.525

07/03/88

Cleveland

Road

198.400

Mario Andretti

Lola-Chevrolet

124.295

199.991

07/17/88

Toronto

Road

183

Al Unser Jr.

March-Chevrolet

91.994

148.018

07/24/88

Meadowlands

Road

180

Al Unser Jr.

March-Chevrolet

99.352

159.857

08/07/88

Michigan

Oval

500

Danny Sullivan

Penske-Chevrolet

180.654

290.672

08/21/88

Pocono

Oval

500

Bobby Rahal

Lola-Judd

133.713

215.144

09/04/88

Mid-Ohio

Road

200.500

Emerson Fittipaldi

Lola-Chevrolet

89.570

144.118

09/01/88

Elkhart Lake

Road

200

Emerson Fittipaldi

Lola-Chevrolet

122.215

196.644

09/25/88

Nazareth

Oval

200

Danny Sullivan

Penske-Chevrolet

148.526

238.978

10/16/88

Laguna Seca

Road

185.900

Danny Sullivan

Penske-Chevrolet

94.090

151.391

11/06/88

Miami

Road

199.800

Al Unser Jr.

March-Chevrolet

101.471

163.267

+The Indianapolis 500 was USAC-sanctioned, but counted toward the PPG Indy Car World Series title.