The 1998 Lone Star 500 was the tenth round of the 1998 Indy Racing League season. The race was held on September 20, 1998 at the 1.50 mi (2.41 km) Texas Motor Speedway in Fort Worth, Texas. Open-wheel veteran John Paul Jr. earned his first win since the 1983 Michigan 500 in a race determined by attrition and fuel strategy. It would be Paul's only win in his IRL career and the only win for Byrd- in the series. Rookie Robby Unser scored his first and only podium as well as led the only laps in his career.