Race No. 12
US 500
Presented by Toyota
Michigan Speedway — Brooklyn, Michigan
July 24-26, 1998
Friday Practice Combined
| pos | car | driver | chassis engine tire | laptime | gap to leader | gap to next | mph | km/h | 110% rule |
| 1 | 40 | Adrian Fernandez | 98I/XD/F | 31.034 | 0.000 | 0.000 | 232.004 | 373.374 | n/a |
| 2 | 6 | Michael Andretti | 009.c/XD/G | 31.162 | -0.128 | -0.128 | 231.051 | 371.840 | n/a |
| 3 | 26 | Paul Tracy | 98I/HRK/F | 31.200 | -0.166 | -0.038 | 230.769 | 371.387 | 100.33% |
| 4 | 1 | Alex Zanardi | 98I/HRK/F | 31.233 | -0.199 | -0.033 | 230.525 | 370.995 | 100.43% |
| 5 | 7 | Bobby Rahal | 98I/XD/F | 31.249 | -0.215 | -0.016 | 230.407 | 370.805 | 100.49% |
| 6 | 10X | Richie Hearn | 009.c/XD/F | 31.263 | -0.229 | -0.014 | 230.304 | 370.639 | 100.53% |
| 7 | 99 | Greg Moore | 98I/108E/F | 31.266 | -0.232 | -0.003 | 230.282 | 370.603 | 100.54% |
| 8 | 12 | Jimmy Vasser | 98I/HRK/F | 31.287 | -0.253 | -0.021 | 230.128 | 370.354 | 100.61% |
| 9 | 6X | Michael Andretti | 009.c/XD/G | 31.332 | -0.298 | -0.045 | 229.797 | 369.822 | 100.75% |
| 10 | 17 | Mauricio Gugelmin | 98I/108E/F | 31.403 | -0.369 | -0.071 | 229.277 | 368.986 | 100.98% |
| 11 | 18 | Mark Blundell | 98I/108E/F | 31.411 | -0.377 | -0.008 | 229.219 | 368.892 | 101.01% |
| 12 | 5 | Gil de Ferran | 98I/HRK/G | 31.514 | -0.480 | -0.103 | 228.470 | 367.687 | 101.34% |
| 13 | 33 | Patrick Carpentier | 98I/108E/F | 31.518 | -0.484 | -0.004 | 228.441 | 367.640 | 101.35% |
| 14 | 11X | Christian Fittipaldi | 009.c/XD/G | 31.521 | -0.487 | -0.003 | 228.419 | 367.605 | 101.36% |
| 15 | 27 | Dario Franchitti | 98I/HRK/F | 31.530 | -0.496 | -0.009 | 228.354 | 367.500 | 101.39% |
| 16 | 3 | Andre Ribeiro | P98/108E/G | 31.566 | -0.532 | -0.036 | 228.094 | 367.081 | 101.51% |
| 17 | 2 | Al Unser Jr. | P98/108E/G | 31.581 | -0.547 | -0.015 | 227.985 | 366.907 | 101.55% |
| 18 | 20 | Scott Pruett | 98I/XD/F | 31.605 | -0.571 | -0.024 | 227.812 | 366.628 | 101.63% |
| 19 | 12X | Jimmy Vasser | 97I/HRK/F | 31.720 | -0.686 | -0.115 | 226.986 | 365.299 | 102.00% |
| 20 | 24 | Robby Gordon | 98I/RV8C/F | 31.729 | -0.695 | -0.009 | 226.922 | 365.195 | 102.03% |
| 21 | 99X | Greg Moore | 98I/108E/F | 31.738 | -0.704 | -0.009 | 226.857 | 365.092 | 102.06% |
| 22 | 8 | Bryan Herta | 98I/XD/F | 31.749 | -0.715 | -0.011 | 226.779 | 364.965 | 102.09% |
| 23 | 21 | Tony Kanaan (R) | 98I/HRK/F | 31.872 | -0.838 | -0.123 | 225.904 | 363.557 | 102.49% |
| 24 | 9 | JJ Lehto (R) | 98I/108E/F | 31.880 | -0.846 | -0.008 | 225.847 | 363.465 | 102.52% |
| 25 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 31.881 | -0.847 | -0.001 | 225.840 | 363.454 | 102.52% |
| 26 | 33X | Patrick Carpentier | 98I/108E/F | 31.917 | -0.883 | -0.036 | 225.585 | 363.044 | 102.63% |
| 27 | 1X | Alex Zanardi | 98I/HRK/F | 31.956 | -0.922 | -0.039 | 225.310 | 362.601 | 102.76% |
| 28 | 77 | Arnd Meier | 97I/XD/G | 31.969 | -0.935 | -0.013 | 225.218 | 362.454 | 102.80% |
| 29 | 40X | Adrian Fernandez | 98I/XD/F | 32.052 | -1.018 | -0.083 | 224.635 | 361.515 | 103.07% |
| 30 | 20X | Scott Pruett | 98I/XD/F | 32.158 | -1.124 | -0.106 | 223.895 | 360.323 | 103.41% |
| 31 | 2X | Al Unser Jr. | P98/108E/G | 32.161 | -1.127 | -0.003 | 223.874 | 360.290 | 103.42% |
| 32 | 24X | Robby Gordon | 98I/RV8C/F | 32.315 | -1.281 | -0.154 | 222.807 | 358.573 | 103.91% |
| 33 | 10 | Richie Hearn | 009.c/XD/F | 32.421 | -1.387 | -0.106 | 222.078 | 357.400 | 104.25% |
| 34 | 19 | Michel Jourdain Jr. | 98I/XD/F | 32.451 | -1.417 | -0.030 | 221.873 | 357.070 | 104.35% |
| 35 | 5X | Gil de Ferran | 98I/HRK/G | 32.472 | -1.438 | -0.021 | 221.729 | 356.839 | 104.42% |
| 36 | 25X | Max Papis | 98I/RV8C/F | 32.558 | -1.524 | -0.086 | 221.144 | 355.896 | 104.70% |
| 37 | 7X | Bobby Rahal | 98I/XD/F | 32.602 | -1.568 | -0.044 | 220.845 | 355.416 | 104.84% |
| 38 | 77X | Arnd Meier | 97I/XD/G | 32.634 | -1.600 | -0.032 | 220.629 | 355.068 | 104.94% |
| 39 | 3X | Andre Ribeiro | P98/108E/G | 32.689 | -1.655 | -0.055 | 220.258 | 354.470 | 105.12% |
| 40 | 98 | PJ Jones | 98I/RV8C/G | 32.854 | -1.820 | -0.165 | 219.151 | 352.690 | 105.65% |
| 41 | 36 | Alex Barron (R) | 98I/RV8C/G | 32.887 | -1.853 | -0.033 | 218.931 | 352.336 | 105.75% |
| 42 | 98X | PJ Jones | 98I/RV8C/G | 32.998 | -1.964 | -0.111 | 218.195 | 351.151 | 106.11% |
| 43 | 34 | Dennis Vitolo | 98I/XD/F | 33.040 | -2.006 | -0.042 | 217.918 | 350.705 | 106.25% |
| 44 | 17X | Mauricio Gugelmin | 98I/108E/F | 33.554 | -2.520 | -0.514 | 214.579 | 345.332 | 107.90% |
| 45 | 19X | Michel Jourdain Jr. | 98I/XD/F | 34.851 | -3.817 | -1.297 | 206.594 | 332.480 | 112.07% |
| 46 | 25 | Max Papis | 98I/RV8C/F | 37.634 | -6.600 | -2.783 | 191.316 | 307.894 | 121.02% |
| 47 | 8X | Bryan Herta | 98I/XD/F | 43.219 | -12.185 | -5.585 | 166.593 | 268.106 | 138.98% |
| 48 | 11 | Christian Fittipaldi | 009.c/XD/G | 51.383 | -20.349 | -8.164 | 140.124 | 225.508 | 165.23% |