Briscoe ahead in afternoon practice

Andretti Autosport's Ryan Hunter-Reay had been in front going into the closing stages, but late quick laps from Briscoe and team-mate Will Power saw the Penske duo hit the front, 0.1482 seconds apart.

Scott Dixon was also quick for Ganassi, taking fourth behind Hunter-Reay with a time 0.2807s down on Briscoe. Dixon's reigning champion team-mate Dario Franchitti was outside the top 10 in both sessions today.

Alex Tagliani took Sam Schmidt Motorsports to an excellent fifth position, ahead of Penske's third driver Helio Castroneves, Andretti's Marco Andretti and a very strong eighth place for Foyt's Vitor Meira.

Justin Wilson had a few trips down run-off areas on the way to taking ninth for Dreyer & Reinbold, ahead of Newman/Haas' Oriol Servia.

The session saw two yellows, one so that James Jakes' Dale Coyne Racing car could be retrieved, and one for an early crash by returnee Paul Tracy, who put his Dragon Racing car into the Turn 5 wall on only his third lap of the session.

Pos  Driver               Team               Time        Gap
 1.  Ryan Briscoe         Penske             1m10.7403s
 2.  Will Power           Penske             1m10.8885s  + 0.1482s
 3.  Ryan Hunter-Reay     Andretti           1m10.9984s  + 0.2581s
 4.  Scott Dixon          Ganassi            1m11.0210s  + 0.2807s
 5.  Alex Tagliani        Sam Schmidt        1m11.2842s  + 0.5439s
 6.  Helio Castroneves    Penske             1m11.3615s  + 0.6212s
 7.  Marco Andretti       Andretti           1m11.4033s  + 0.6630s
 8.  Vitor Meira          Foyt               1m11.4749s  + 0.7346s
 9.  Justin Wilson        Dreyer & Reinbold  1m11.5862s  + 0.8459s
10.  Oriol Servia         Newman/Haas        1m11.5948s  + 0.8545s
11.  Tony Kanaan          KV                 1m11.5954s  + 0.8551s
12.  Dario Franchitti     Ganassi            1m11.6709s  + 0.9306s
13.  James Hinchcliffe    Newman/Haas        1m11.7080s  + 0.9677s
14.  Mike Conway          Andretti           1m11.7909s  + 1.0506s
15.  Takuma Sato          KV                 1m11.8077s  + 1.0674s
16.  Sebastien Bourdais   Dale Coyne         1m11.9267s  + 1.1864s
17.  Danica Patrick       Andretti           1m11.9533s  + 1.2130s
18.  Raphael Matos        AFS                1m11.9538s  + 1.2135s
19.  Graham Rahal         Ganassi            1m11.9652s  + 1.2249s
20.  EJ Viso              KV                 1m11.9979s  + 1.2576s
21.  Simona de Silvestro  HVM                1m12.2060s  + 1.4657s
22.  Charlie Kimball      Ganassi            1m12.3114s  + 1.5711s
23.  Sebastian Saavedra   Conquest           1m12.4229s  + 1.6826s
24.  JR Hildebrand        Panther            1m12.4348s  + 1.6945s
25.  James Jakes          Dale Coyne         1m13.4100s  + 2.6697s
26.  Ana Beatriz          Dreyer & Reinbold  1m13.4170s  + 2.6767s
27.  Paul Tracy           Dragon             1m14.5701s  + 3.8298s