Rinus Veekay should pit twice more while O'Ward should only need to pit once.
O'Ward has passed Simpson for second.
He's getting the moves done.
Power tries to get past again but O'Ward roughs him out and into the wall, he reverses and stays in it.
Rinus Veekay leads - O'Ward is past Power into fourth. He needs to push ahead to keep him in the fight to win.
Palou and Dixon are in pit lane. He's out in front of Dixon with the drivers in 16th and 18th.
This is hurting Palou in the lead, the team seems to be trying to work out what to do.
Jacob Abel is on top of Josef Newgarden's Penske out of Turn One. This meant that several cars had to stop to avoid being involved.
Palou has already built a gap to Dixon on the main straight.
Palou and Dixon have still not pitted. O'Ward is in seventh.
It seems Armstrong might be to blame for Kirkwood's spin.
Kyle Kirkwood has spun in pit lane! Disaster again for him.
O'Ward pitted before the pit lane was closed, he looks very good right now.
It had seemed Palou would pit but a closed pit lane means he can't.
Alexander Rossi's rear left is flailing around after a big hit with the wall. Another Caution is out after lots of debris from the wall sponsors.
We're seeing cars trickle in now, we should expect others to follow.
This could create a cannon effect - the team hasn't changed the front wing so clearly ok for now.
David Malukas has been told not to shirt shift out of Turn 3 after reported engine problems.
O'Ward is 15 seconds behind Palou so he should come out in 23rd behind Will Power. He still has around 12 laps on board though.
O'Ward is in a good position as he leads the alternate strategy cars, he sits ninth behind Alexander Rossi.
Rasmussen looked to be elbowed out the car by Will Power in his crash with the wall.
Next for Herta is his teammate, Marcus Ericsson.
Louis Foster is in second while O'Ward passes Defrancesco and Herta passes Armstrong.
Will power is lucky not to have a puncture.
Kyffin Simpson has finally pitted after losing a lot of places and time on the soft which had clearly had enough.