Montoya leads opening practice in Toronto
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| Juan Pablo Montoya |
Verizon IndyCar Series championship leader Juan Pablo Montoya put the #2 PPG Automotive Refinish Team Penske Chevrolet atop the time charts in a Bowtie sweep of the top-7 in opening practicing for the Honda Indy Toronto. Simon Pagenaud was second 0.1579 seconds behind Montoya, with the CFH Racing pair of Josef Newgarden and Luca Fillipi third and fourth. Toronto 2014 Race 1 winner Sebastien Bourdais rounded out the top-five.
Once again, Graham Rahal was the lead Honda, posting the eighth best time in the #15 Rousseau Metal Rahal Letterman Lanigan entry. Rahal was the only Honda to post a time in the top-11.
Practice 2 is scheduled to get underway at 2:45 p.m. ET. Results below
| P | No | Name | Time | Diff | Gap | Laps | Speed | Engine |
| 1 | 2 | Juan Pablo Montoya | 1:00.634 | 0.0000 | 0.0000 | 8 | 104.198 mph | Chevrolet |
| 2 | 22 | Simon Pagenaud | 1:00.792 | 0.1579 | 0.1579 | 14 | 103.928 | Chevrolet |
| 3 | 67 | Josef Newgarden | 1:00.836 | 0.2020 | 0.0441 | 16 | 103.852 | Chevrolet |
| 4 | 20 | Luca Filippi | 1:00.850 | 0.2157 | 0.0137 | 17 | 103.829 | Chevrolet |
| 5 | 11 | Sebastien Bourdais | 1:00.862 | 0.2277 | 0.0120 | 13 | 103.809 | Chevrolet |
| 6 | 1 | Will Power | 1:00.866 | 0.2313 | 0.0036 | 12 | 103.802 | Chevrolet |
| 7 | 3 | Helio Castroneves | 1:00.879 | 0.2445 | 0.0132 | 13 | 103.780 | Chevrolet |
| 8 | 15 | Graham Rahal | 1:00.933 | 0.2987 | 0.0542 | 15 | 103.688 | Honda |
| 9 | 83 | Charlie Kimball | 1:01.085 | 0.4509 | 0.1522 | 17 | 103.429 | Chevrolet |
| 10 | 10 | Tony Kanaan | 1:01.174 | 0.5401 | 0.0892 | 12 | 103.278 | Chevrolet |
| 11 | 8 | Sebastian Saavedra | 1:01.189 | 0.5547 | 0.0146 | 19 | 103.254 | Chevrolet |
| 12 | 41 | Jack Hawksworth | 1:01.256 | 0.6219 | 0.0672 | 18 | 103.141 | Honda |
| 13 | 14 | Takuma Sato | 1:01.264 | 0.6297 | 0.0078 | 18 | 103.127 | Honda |
| 14 | 7 | James Jakes | 1:01.328 | 0.6934 | 0.0637 | 16 | 103.020 | Honda |
| 15 | 28 | Ryan Hunter-Reay | 1:01.459 | 0.8243 | 0.1309 | 14 | 102.801 | Honda |
| 16 | 26 | Carlos Munoz | 1:01.459 | 0.8245 | 0.0002 | 17 | 102.801 | Honda |
| 17 | 9 | Scott Dixon | 1:01.510 | 0.8758 | 0.0513 | 10 | 102.715 | Chevrolet |
| 18 | 27 | Marco Andretti | 1:01.595 | 0.9607 | 0.0849 | 16 | 102.573 | Honda |
| 19 | 98 | Gabby Chaves | 1:02.206 | 1.5718 | 0.6111 | 20 | 101.566 | Honda |
| 20 | 4 | Stefano Coletti | 1:02.494 | 1.8599 | 0.2881 | 18 | 101.097 | Chevrolet |
| 21 | 5 | Conor Daly | 1:02.645 | 2.0110 | 0.1511 | 19 | 100.854 | Honda |
| 22 | 19 | Tristan Vautier | 1:02.863 | 2.2289 | 0.2179 | 15 | 100.504 | Honda |
| 23 | 18 | Rodolfo Gonzalez | 1:03.485 | 2.8509 | 0.6220 | 16 | 99.519 | Honda |