Under sweltering conditions, the IndyCar Series held the first race of a double-round weekend at Iowa Speedway. The victory, fourth of the season and also on the short oval, went to Josef Newgarden.

Will Power led the field at the start, but could only hold that advantage for the first 22 laps. Josef Newgarden got the jump on the first restart of the race and passed Power in turn 1.

Once Newgarden was able to pass Power after the first yellow flag, he never looked back. He avoided challenges from several drivers, including Marcus Ericsson and Pato O'Ward, who got ahead later in the race.

Newgarden led 208 of the 250 laps, and the victory propels Newgarden into second place in the points standings. It also puts him just 11 points behind Ericsson, who holds the lead despite a poor result a lap behind.

O'Ward crossed the line in second and was hindered by a considerable amount of traffic in the closing laps. Power finished on the last step of the podium, completing a strong weekend for the veteran. He will have a second chance to win a race from pole again on Sunday, where there will be 50 more laps.

Towards the end of the race, almost everyone was struggling to keep control of their cars. Highly degraded tires proved very difficult to control in the final stint, when the leaders ran more than 80 laps in their last set.

Alex Palou lost a few places in the final laps as he struggled more than others to control his car and finished one lap behind in sixth. He was behind his Ganassi teammate, Scott Dixon, who gained positions in the final laps.

There were a couple of yellows that interrupted the afternoon, the first of which was caused by Jimmie Johnson's spin. He didn't hit the wall, however, and managed to bring home in a respectable 11th place.

The first crash of the day was Felix Rosenqvist, who hit the wall hard after losing control of his Arrow McLaren SP Chevy. Later in the race, Ed Carpenter had a similar accident with a hard hit to the barriers.

Race standings:

Pos	Driver	Team	Car	Laps	Leads	Distance	Fastest Lap	Pitstops	Pts
1	Josef Newgarden	Team Penske	Dallara DW12-Chevrolet	250	208	1:39:34.421s	19.465s	3	53
2	Patricio O'Ward	Arrow McLaren SP	Dallara DW12-Chevrolet	250	0	+6.179s	19.605s	3	40
3	Will Power	Team Penske	Dallara DW12-Chevrolet	250	23	+20.283s	19.457s	3	37
4	Rinus VeeKay	Ed Carpenter Racing	Dallara DW12-Chevrolet	250	0	+20.375s	19.491s	3	32
5	Scott Dixon	Chip Ganassi Racing	Dallara DW12-Honda	250	0	+21.975s	19.897s	4	30
6	Alex Palou	Chip Ganassi Racing	Dallara DW12-Honda	249	0	+1 lap	19.689s	3	28
7	Romain Grosjean	Andretti Autosport	Dallara DW12-Honda	249	0	+1 lap	19.819s	3	26
8	Marcus Ericsson	Chip Ganassi Racing	Dallara DW12-Honda	249	0	+1 lap	19.58s	3	24
9	Graham Rahal	Rahal Letterman Lanigan Racing	Dallara DW12-Honda	249	0	+1 lap	19.958s	4	22
10	Christian Lundgaard	Rahal Letterman Lanigan Racing	Dallara DW12-Honda	249	0	+1 lap	19.998s	4	20
11	Jimmie Johnson	Chip Ganassi Racing	Dallara DW12-Honda	249	19	+1 lap	19.773s	4	20
12	Callum Ilott	Juncos Hollinger Racing	Dallara DW12-Chevrolet	249	0	+1 lap	19.962s	4	18
13	Alexander Rossi	Andretti Autosport	Dallara DW12-Honda	249	0	+1 lap	19.892s	3	17
14	David Malukas	Dale Coyne Racing with HMD Motorsport	Dallara DW12-Honda	249	0	+1 lap	20.099s	3	16
15	Kyle Kirkwood	A.J. Foyt Enterprises	Dallara DW12-Chevrolet	249	0	+1 lap	20.199s	4	15
16	Helio Castroneves	Meyer Shank Racing	Dallara DW12-Honda	249	0	+1 lap	19.998s	4	14
17	Devlin DeFrancesco	Andretti Steinbrenner Autosport	Dallara DW12-Honda	249	0	+1 lap	20.339s	4	13
18	Jack Harvey	Rahal Letterman Lanigan Racing	Dallara DW12-Honda	249	0	+1 lap	20.257s	3	12
19	Conor Daly	Ed Carpenter Racing	Dallara DW12-Chevrolet	249	0	+1 lap	19.812s	4	11
20	Dalton Kellett	A.J. Foyt Enterprises	Dallara DW12-Chevrolet	247	0	+3 laps	20.009s	4	10
21	Takuma Sato	Dale Coyne Racing with RWR	Dallara DW12-Honda	245	0	+5 laps	19.96s	4	9
22	Scott McLaughlin	Team Penske	Dallara DW12-Chevrolet	244	0	+6 laps	19.827s	5	8
23	Simon Pagenaud	Meyer Shank Racing	Dallara DW12-Honda	244	0	+6 laps	20.243s	5	7
24	Colton Herta	Andretti Autosport with Curb-Agajanian	Dallara DW12-Honda	242	0	+8 laps	19.935s	4	6
	Ed Carpenter	Ed Carpenter Racing	Dallara DW12-Chevrolet	160	0	DNF	20.212s	3	5
	Felix Rosenqvist	Arrow McLaren SP	Dallara DW12-Chevrolet	109	0	DNF	19.957s	1	5