The New Zealand motor racing driver Scott Dixon has finshed 16th in the latest round of IndyCars in Iowa.
Dixon qualified 5th, but suffered a 10 place grid penalty after he needed to change an engine following qualifying.
Dixon struggled to make up ground during the race.
The race was won by Canadian James Hinchcliffe.
Helio Castroneves leads the overall standings, while Dixon drops 2 places to 7th.