Race No. 19
Marlboro 500
Presented by Toyota
California Speedway — Fontana, California
October 30 - November 1, 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 | 30.877 | 0.000 | 0.000 | 236.564 | 380.714 | n/a |
| 2 | 6 | Michael Andretti | 009.c/XD/G | 31.026 | -0.149 | -0.149 | 235.428 | 378.885 | n/a |
| 3 | 99 | Greg Moore | 98I/108E/F | 31.089 | -0.212 | -0.063 | 234.951 | 378.117 | 100.44% |
| 4 | 17 | Mauricio Gugelmin | 98I/108E/F | 31.105 | -0.228 | -0.016 | 234.830 | 377.923 | 100.50% |
| 5 | 12 | Jimmy Vasser | 98I/HRK/F | 31.154 | -0.277 | -0.049 | 234.461 | 377.329 | 100.65% |
| 6 | 18 | Mark Blundell | 98I/108E/F | 31.187 | -0.310 | -0.033 | 234.213 | 376.929 | 100.76% |
| 7 | 26 | Paul Tracy | 98I/HRK/F | 31.189 | -0.312 | -0.002 | 234.198 | 376.905 | 100.77% |
| 8 | 1 | Alex Zanardi | 98I/HRK/F | 31.218 | -0.341 | -0.029 | 233.980 | 376.555 | 100.86% |
| 9 | 20 | Scott Pruett | 98I/XD/F | 31.227 | -0.350 | -0.009 | 233.913 | 376.446 | 100.89% |
| 10 | 7 | Bobby Rahal | 98I/XD/F | 31.263 | -0.386 | -0.036 | 233.644 | 376.013 | 101.01% |
| 11 | 10 | Richie Hearn | 009.c/XD/F | 31.299 | -0.422 | -0.036 | 233.375 | 375.580 | 101.12% |
| 12 | 5 | Gil de Ferran | 98I/HRK/G | 31.309 | -0.432 | -0.010 | 233.300 | 375.460 | 101.16% |
| 13 | 27 | Dario Franchitti | 98I/HRK/F | 31.314 | -0.437 | -0.005 | 233.263 | 375.401 | 101.17% |
| 14 | 6X | Michael Andretti | 009.c/XD/G | 31.326 | -0.449 | -0.012 | 233.174 | 375.257 | 101.21% |
| 15 | 9X | JJ Lehto (R) | 98I/108E/F | 31.328 | -0.451 | -0.002 | 233.159 | 375.233 | 101.22% |
| 16 | 8 | Bryan Herta | 98I/XD/F | 31.357 | -0.480 | -0.029 | 232.943 | 374.886 | 101.31% |
| 17 | 3 | Andre Ribeiro | P98/108E/G | 31.363 | -0.486 | -0.006 | 232.899 | 374.814 | 101.33% |
| 18 | 7X | Bobby Rahal | 98I/XD/F | 31.415 | -0.538 | -0.052 | 232.513 | 374.194 | 101.50% |
| 19 | 11 | Christian Fittipaldi | 009.c/XD/G | 31.444 | -0.567 | -0.029 | 232.299 | 373.849 | 101.59% |
| 20 | 11X | Christian Fittipaldi | 009.c/XD/G | 31.534 | -0.657 | -0.090 | 231.636 | 372.782 | 101.88% |
| 21 | 2X | Al Unser Jr. | P98/108E/G | 31.593 | -0.716 | -0.059 | 231.203 | 372.085 | 102.07% |
| 22 | 24 | Robby Gordon | 98I/RV8C/F | 31.605 | -0.728 | -0.012 | 231.115 | 371.944 | 102.11% |
| 23 | 33 | Patrick Carpentier | 98I/108E/F | 31.639 | -0.762 | -0.034 | 230.867 | 371.544 | 102.22% |
| 24 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 31.708 | -0.831 | -0.069 | 230.365 | 370.736 | 102.44% |
| 25 | 2 | Al Unser Jr. | P98/108E/G | 31.724 | -0.847 | -0.016 | 230.248 | 370.549 | 102.50% |
| 26 | 10X | Richie Hearn | 009.c/XD/F | 31.793 | -0.916 | -0.069 | 229.749 | 369.745 | 102.72% |
| 27 | 21X | Tony Kanaan (R) | 98I/HRK/F | 31.797 | -0.920 | -0.004 | 229.720 | 369.698 | 102.73% |
| 28 | 36 | Alex Barron (R) | EA/RV8C/G | 31.901 | -1.024 | -0.104 | 228.971 | 368.493 | 103.07% |
| 29 | 20X | Scott Pruett | 98I/XD/F | 31.947 | -1.070 | -0.046 | 228.641 | 367.962 | 103.22% |
| 30 | 9 | JJ Lehto (R) | 98I/108E/F | 32.043 | -1.166 | -0.096 | 227.956 | 366.860 | 103.53% |
| 31 | 25 | Max Papis | 98I/RV8C/F | 32.077 | -1.200 | -0.034 | 227.715 | 366.471 | 103.64% |
| 32 | 19 | Michel Jourdain Jr. | 98I/XD/F | 32.234 | -1.357 | -0.157 | 226.605 | 364.686 | 104.14% |
| 33 | 40X | Adrian Fernandez | 98I/XD/F | 32.260 | -1.383 | -0.026 | 226.423 | 364.392 | 104.23% |
| 34 | 24X | Robby Gordon | 98I/RV8C/F | 32.354 | -1.477 | -0.094 | 225.765 | 363.334 | 104.53% |
| 35 | 3X | Andre Ribeiro | P98/108E/G | 32.455 | -1.578 | -0.101 | 225.062 | 362.203 | 104.86% |
| 36 | 77X | Arnd Meier | 97I/XD/G | 32.497 | -1.620 | -0.042 | 224.772 | 361.735 | 104.99% |
| 37 | 5X | Gil de Ferran | 98I/HRK/G | 32.512 | -1.635 | -0.015 | 224.668 | 361.568 | 105.04% |
| 38 | 21 | Tony Kanaan (R) | 98I/HRK/F | 32.558 | -1.681 | -0.046 | 224.350 | 361.057 | 105.19% |
| 39 | 25X | Max Papis | 98I/RV8C/F | 32.672 | -1.795 | -0.114 | 223.568 | 359.797 | 105.56% |
| 40 | 98X | Vincenzo Sospiri | EA/RV8C/G | 32.685 | -1.808 | -0.013 | 223.479 | 359.654 | 105.60% |
| 41 | 36X | Alex Barron (R) | EA/RV8C/G | 32.812 | -1.935 | -0.127 | 222.614 | 358.262 | 106.01% |
| 42 | 34 | Dennis Vitolo | 98I/XD/F | 33.524 | -2.647 | -0.712 | 217.886 | 350.653 | 108.31% |
| 43 | 77 | Arnd Meier | 97I/XD/G | 35.037 | -4.160 | -1.513 | 208.477 | 335.511 | 113.20% |
| 44 | 8X | Bryan Herta | 98I/XD/F | 38.435 | -7.558 | -3.398 | 190.046 | 305.849 | 124.18% |