Race No. 12
US 500
Presented by Toyota
Michigan Speedway — Brooklyn, Michigan
July 24-26, 1998
Saturday Individual Practice Report
| pos | car | driver | chassis engine tire | laptime | gap to leader | gap to next | mph | km/h | 110% rule |
| 1 | 12 | Jimmy Vasser | 98I/HRK/F | 30.819 | 0.000 | 0.000 | 233.622 | 375.978 | n/a |
| 2 | 10X | Richie Hearn | 009.c/XD/F | 30.830 | -0.011 | -0.011 | 233.539 | 375.844 | n/a |
| 3 | 33 | Patrick Carpentier | 98I/108E/F | 30.956 | -0.137 | -0.126 | 232.588 | 374.314 | 100.43% |
| 4 | 1 | Alex Zanardi | 98I/HRK/F | 30.968 | -0.149 | -0.012 | 232.498 | 374.169 | 100.47% |
| 5 | 99 | Greg Moore | 98I/108E/F | 30.968 | -0.149 | 0.000 | 232.498 | 374.169 | 100.47% |
| 6 | 40 | Adrian Fernandez | 98I/XD/F | 30.983 | -0.164 | -0.015 | 232.386 | 373.988 | 100.51% |
| 7 | 5 | Gil de Ferran | 98I/HRK/G | 30.989 | -0.170 | -0.006 | 232.341 | 373.916 | 100.53% |
| 8 | 6 | Michael Andretti | 009.c/XD/G | 31.044 | -0.225 | -0.055 | 231.929 | 373.253 | 100.71% |
| 9 | 2 | Al Unser Jr. | P98/108E/G | 31.069 | -0.250 | -0.025 | 231.742 | 372.953 | 100.79% |
| 10 | 3 | Andre Ribeiro | P98/108E/G | 31.082 | -0.263 | -0.013 | 231.645 | 372.797 | 100.84% |
| 11 | 18 | Mark Blundell | 98I/108E/F | 31.136 | -0.317 | -0.054 | 231.244 | 372.150 | 101.01% |
| 12 | 26 | Paul Tracy | 98I/HRK/F | 31.181 | -0.362 | -0.045 | 230.910 | 371.613 | 101.16% |
| 13 | 8 | Bryan Herta | 98I/XD/F | 31.190 | -0.371 | -0.009 | 230.843 | 371.506 | 101.19% |
| 14 | 20 | Scott Pruett | 98I/XD/F | 31.240 | -0.421 | -0.050 | 230.474 | 370.912 | 101.35% |
| 15 | 17 | Mauricio Gugelmin | 98I/108E/F | 31.303 | -0.484 | -0.063 | 230.010 | 370.165 | 101.55% |
| 16 | 7 | Bobby Rahal | 98I/XD/F | 31.310 | -0.491 | -0.007 | 229.958 | 370.082 | 101.58% |
| 17 | 21 | Tony Kanaan (R) | 98I/HRK/F | 31.313 | -0.494 | -0.003 | 229.936 | 370.047 | 101.58% |
| 18 | 11X | Christian Fittipaldi | 009.c/XD/G | 31.324 | -0.505 | -0.011 | 229.856 | 369.917 | 101.62% |
| 19 | 9 | JJ Lehto (R) | 98I/108E/F | 31.383 | -0.564 | -0.059 | 229.424 | 369.221 | 101.81% |
| 20 | 77 | Arnd Meier | 97I/XD/G | 31.386 | -0.567 | -0.003 | 229.402 | 369.186 | 101.82% |
| 21 | 5X | Gil de Ferran | 98I/HRK/G | 31.397 | -0.578 | -0.011 | 229.321 | 369.057 | 101.86% |
| 22 | 25 | Max Papis | 98I/RV8C/F | 31.758 | -0.939 | -0.361 | 226.715 | 364.862 | 103.03% |
| 23 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 31.840 | -1.021 | -0.082 | 226.131 | 363.922 | 103.29% |
| 24 | 27 | Dario Franchitti | 98I/HRK/F | 31.947 | -1.128 | -0.107 | 225.373 | 362.703 | 103.64% |
| 25 | 24X | Robby Gordon | 98I/RV8C/F | 31.960 | -1.141 | -0.013 | 225.282 | 362.556 | 103.68% |
| 26 | 19 | Michel Jourdain Jr. | 98I/XD/F | 32.141 | -1.322 | -0.181 | 224.013 | 360.514 | 104.27% |
| 27 | 36 | Alex Barron (R) | 98I/RV8C/G | 32.296 | -1.477 | -0.155 | 222.938 | 358.784 | 104.77% |
| 28 | 34 | Dennis Vitolo | 98I/XD/F | 32.332 | -1.513 | -0.036 | 222.690 | 358.384 | 104.89% |
| 29 | 98X | PJ Jones | 98I/RV8C/G | 32.633 | -1.814 | -0.301 | 220.636 | 355.079 | 105.87% |
| 30 | 11 | Christian Fittipaldi | 009.c/XD/G | 44.615 | -13.796 | -11.982 | 161.381 | 259.717 | 144.74% |