Postpublished at Lap 25/200
Fernando Alonso's best lap speed is a 222.952 mph. That's pretty good considering the fastest so far, done by leading Tony Kanaan, is 223.078.
Summary
Alonso out as engine blows, former F1 driver Takuma Sato wins
Scott Dixon and Jay Howard survive huge crash as Dixon's car launched upwards and into wall
Vettel wins in Monaco, Raikkonen 2nd, Ricciardo 3rd, Hamilton 7th
Vettel takes lead from Raikkonen after pit stops - suspected team orders
Indy 500 video highlights to come later
Postpublished at Lap 25/200
Postpublished at Lap 21/200
Keep on keepin' on, Fernando Alonso. The Spaniard has got past Marco Andretti and is into sixth.
Postpublished at Lap 19/200
Britain's Pippa Mann has dropped from 28th to 30th while her compatriot Max Chilton is currently 26th.
Postpublished at 17:38 British Summer Time 28 May 2017
Postpublished at Lap 17/200
Fernando Alonso is not getting carried away. He's pacing himself and biding his time to continue his climb up the order. Long way to go in this.
Will Power, who shot up from 10th to second, is dropping back now. He's 11th.
Top 10 updatepublished at Lap 12/200
1) Kanaan
2) Dixon
3) Rossi
4) Carpenter
5) Hildebrand
6) Andretti
7) Alonso
8) Sata
9) Hunter-Reay
10) Jones
Postpublished at Lap 9/200
On the move again. Fernando Alonso is up to seventh as he swoops past Will Power. The Spaniard is getting into his groove and building confidence.
Postpublished at Lap 6/200
To continue the mid-2000s F1 throwback theme, Fernando Alonso has passed Takuma Sato into eigth.
There's also a change at the front of the pack with Tony Kanaan passing Scott Dixon for the lead.
get involved Get Involvedpublished at 17:31 British Summer Time 28 May 2017
#bbcf1 or text 81111
Dennis Ethan: Vamos Fernando Alonso on his Indycar 500 debut...Bring it home, Fernando!
Postpublished at Lap 5/200
A throwback to Formula 1 in the mid-2000s as Fernando Alonso finds himself with Takuma Sato for company. Sato is currently eighth with Alonso fourth.
Postpublished at Lap 2/200
There were 54 changes of the lead last year. No changes at the front after one lap but Fernando Alonso has dropped down into ninth.
Go! Go! Go!published at 17:27 British Summer Time 28 May 2017
The pace car heads in and we are under way!
'Steak and shake' is written across one of the drivers' cockpits. Brilliant.
Image source, Getty ImagesPostpublished at 17:25 British Summer Time 28 May 2017
A familiar sight from Formula 1 as Fernando Alonso weaves his car right to left to warm up the tyres.
Postpublished at 17:24 British Summer Time 28 May 2017
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End of twitter postPostpublished at 17:24 British Summer Time 28 May 2017
The pace car is leading the grid away.
It's the job of the pace car to lead the field to the green flag and, generally, this responsibility has fallen to a celebrity or a racing a legend.
Behind the wheel of this year's pace car, which is a Chevrolet Corvette Grand Sport, is actor Jeffrey Dean Morgan, star of The Walking Dead and Grey's Anatomy.
In pretty much every year since 1936 it has been tradition for the Indy 500 to be awarded the pace car as a prize, or at least a replica.
Postpublished at 17:23 British Summer Time 28 May 2017
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End of twitter postPostpublished at 17:23 British Summer Time 28 May 2017
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End of twitter postPostpublished at 17:22 British Summer Time 28 May 2017
The cars are away for the formation lap. A pick up truck at the back of the field has a massive American flag fluttering behind it. I mean massive. So American.
Start your engines.published at 17:19 British Summer Time 28 May 2017
The drivers are in their cars, the stands are packed. It's time to start those engines!
Image source, Getty ImagesPostpublished at 17:18 British Summer Time 28 May 2017