Race No. 12
US 500
Presented by Toyota
Michigan Speedway — Brooklyn, Michigan
July 24-26, 1998
Second Individual Friday Practice Report
| pos | car | driver | chassis engine tire | laptime | gap to leader | gap to next | mph | km/h | 110% rule |
| 1 | 6 | Michael Andretti | 009.c/XD/G | 31.162 | 0.000 | 0.000 | 231.051 | 371.840 | n/a |
| 2 | 26 | Paul Tracy | 98I/HRK/F | 31.200 | -0.038 | -0.038 | 230.769 | 371.387 | n/a |
| 3 | 7 | Bobby Rahal | 98I/XD/F | 31.249 | -0.087 | -0.049 | 230.407 | 370.805 | 100.22% |
| 4 | 10X | Richie Hearn | 009.c/XD/F | 31.263 | -0.101 | -0.014 | 230.304 | 370.639 | 100.26% |
| 5 | 99 | Greg Moore | 98I/108E/F | 31.266 | -0.104 | -0.003 | 230.282 | 370.603 | 100.27% |
| 6 | 1 | Alex Zanardi | 98I/HRK/F | 31.488 | -0.326 | -0.222 | 228.659 | 367.990 | 100.98% |
| 7 | 40 | Adrian Fernandez | 98I/XD/F | 31.492 | -0.330 | -0.004 | 228.629 | 367.944 | 101.00% |
| 8 | 5 | Gil de Ferran | 98I/HRK/G | 31.514 | -0.352 | -0.022 | 228.470 | 367.687 | 101.07% |
| 9 | 33 | Patrick Carpentier | 98I/108E/F | 31.518 | -0.356 | -0.004 | 228.441 | 367.640 | 101.08% |
| 10 | 11X | Christian Fittipaldi | 009.c/XD/G | 31.521 | -0.359 | -0.003 | 228.419 | 367.605 | 101.09% |
| 11 | 3 | Andre Ribeiro | P98/108E/G | 31.566 | -0.404 | -0.045 | 228.094 | 367.081 | 101.23% |
| 12 | 2 | Al Unser Jr. | P98/108E/G | 31.601 | -0.439 | -0.035 | 227.841 | 366.674 | 101.35% |
| 13 | 6X | Michael Andretti | 009.c/XD/G | 31.673 | -0.511 | -0.072 | 227.323 | 365.841 | 101.58% |
| 14 | 12X | Jimmy Vasser | 97I/HRK/F | 31.720 | -0.558 | -0.047 | 226.986 | 365.299 | 101.73% |
| 15 | 24 | Robby Gordon | 98I/RV8C/F | 31.729 | -0.567 | -0.009 | 226.922 | 365.195 | 101.76% |
| 16 | 99X | Greg Moore | 98I/108E/F | 31.738 | -0.576 | -0.009 | 226.857 | 365.092 | 101.79% |
| 17 | 8 | Bryan Herta | 98I/XD/F | 31.749 | -0.587 | -0.011 | 226.779 | 364.965 | 101.82% |
| 18 | 12 | Jimmy Vasser | 98I/HRK/F | 31.767 | -0.605 | -0.018 | 226.650 | 364.758 | 101.88% |
| 19 | 27 | Dario Franchitti | 98I/HRK/F | 31.840 | -0.678 | -0.073 | 226.131 | 363.922 | 102.11% |
| 20 | 20 | Scott Pruett | 98I/XD/F | 31.842 | -0.680 | -0.002 | 226.116 | 363.899 | 102.12% |
| 21 | 21 | Tony Kanaan (R) | 98I/HRK/F | 31.872 | -0.710 | -0.030 | 225.904 | 363.557 | 102.22% |
| 22 | 9 | JJ Lehto (R) | 98I/108E/F | 31.880 | -0.718 | -0.008 | 225.847 | 363.465 | 102.24% |
| 23 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 31.881 | -0.719 | -0.001 | 225.840 | 363.454 | 102.24% |
| 24 | 33X | Patrick Carpentier | 98I/108E/F | 31.917 | -0.755 | -0.036 | 225.585 | 363.044 | 102.36% |
| 25 | 18 | Mark Blundell | 98I/108E/F | 31.978 | -0.816 | -0.061 | 225.155 | 362.352 | 102.56% |
| 26 | 40X | Adrian Fernandez | 98I/XD/F | 32.052 | -0.890 | -0.074 | 224.635 | 361.515 | 102.79% |
| 27 | 20X | Scott Pruett | 98I/XD/F | 32.158 | -0.996 | -0.106 | 223.895 | 360.323 | 103.13% |
| 28 | 77 | Arnd Meier | 97I/XD/G | 32.265 | -1.103 | -0.107 | 223.152 | 359.128 | 103.48% |
| 29 | 17 | Mauricio Gugelmin | 98I/108E/F | 32.266 | -1.104 | -0.001 | 223.145 | 359.117 | 103.48% |
| 30 | 19 | Michel Jourdain Jr. | 98I/XD/F | 32.451 | -1.289 | -0.185 | 221.873 | 357.070 | 104.07% |
| 31 | 3X | Andre Ribeiro | P98/108E/G | 32.689 | -1.527 | -0.238 | 220.258 | 354.470 | 104.84% |
| 32 | 98 | PJ Jones | 98I/RV8C/G | 32.854 | -1.692 | -0.165 | 219.151 | 352.690 | 105.37% |
| 33 | 36 | Alex Barron (R) | 98I/RV8C/G | 32.887 | -1.725 | -0.033 | 218.931 | 352.336 | 105.47% |
| 34 | 98X | PJ Jones | 98I/RV8C/G | 32.998 | -1.836 | -0.111 | 218.195 | 351.151 | 105.83% |
| 35 | 34 | Dennis Vitolo | 98I/XD/F | 33.040 | -1.878 | -0.042 | 217.918 | 350.705 | 105.96% |
| 36 | 17X | Mauricio Gugelmin | 98I/108E/F | 33.554 | -2.392 | -0.514 | 214.579 | 345.332 | 107.61% |
| 37 | 25 | Max Papis | 98I/RV8C/F | 37.634 | -6.472 | -4.080 | 191.316 | 307.894 | 120.70% |