1998 Indy Racing League season Season summary Season summary

| Rnd | Date_ | Location_ | Laps | Distance | Time_ | Speed_km_h | Winner | Pole_Position | Most_Leading_Laps | Fastest_Race_Lap_ |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | September 20 | Texas Motor Speedway, Texas | 208 | 312 mi (502 km) | 2`21:53.557 | 212.316 | John Paul, Jr. | Billy Boat | Tony Stewart | Jeff Ward |
| 11 | October 11 | Las Vegas Motor Speedway, Nevada | 208 | 312 mi (502 km) | 2`18:19.202 | 217.800 | Arie Luyendyk | Billy Boat | Arie Luyendyk | Arie Luyendyk |