Race No. 17
Texaco Grand Prix of Houston
Houston, Texas
October 2-4, 1998
Sunday Warmup Report
| pos | car | driver | chassis engine tire | laptime | gap to leader | gap to next | mph | km/h | 110% rule |
| 1 | 5 | Gil de Ferran | 98I/HRK/G | 62.212 | 0.000 | 0.000 | 88.362 | 142.205 | n/a |
| 2 | 11 | Christian Fittipaldi | 009.c/XD/G | 62.219 | -0.007 | -0.007 | 88.352 | 142.189 | n/a |
| 3 | 1 | Alex Zanardi | 98I/HRK/F | 62.277 | -0.065 | -0.058 | 88.270 | 142.057 | 100.10% |
| 4 | 27 | Dario Franchitti | 98I/HRK/F | 62.473 | -0.261 | -0.196 | 87.993 | 141.611 | 100.41% |
| 5 | 36 | Alex Barron (R) | EA/RV8C/G | 62.485 | -0.273 | -0.012 | 87.976 | 141.584 | 100.43% |
| 6 | 3 | Andre Ribeiro | P98/108E/G | 62.609 | -0.397 | -0.124 | 87.802 | 141.304 | 100.63% |
| 7 | 20X | Scott Pruett | 98I/XD/F | 62.741 | -0.529 | -0.132 | 87.617 | 141.006 | 100.84% |
| 8 | 8 | Bryan Herta | 98I/XD/F | 62.774 | -0.562 | -0.033 | 87.571 | 140.932 | 100.90% |
| 9 | 99 | Greg Moore | 98I/108E/F | 62.774 | -0.562 | 0.000 | 87.571 | 140.932 | 100.90% |
| 10 | 16 | Helio Castro-Neves (R) | 98I/108E/G | 62.919 | -0.707 | -0.145 | 87.369 | 140.608 | 101.13% |
| 11 | 7 | Bobby Rahal | 98I/XD/F | 62.960 | -0.748 | -0.041 | 87.313 | 140.516 | 101.20% |
| 12 | 6 | Michael Andretti | 009.c/XD/G | 63.107 | -0.895 | -0.147 | 87.109 | 140.189 | 101.43% |
| 13 | 18 | Mark Blundell | 98I/108E/F | 63.129 | -0.917 | -0.022 | 87.079 | 140.140 | 101.47% |
| 14 | 10 | Richie Hearn | 009.c/XD/F | 63.180 | -0.968 | -0.051 | 87.009 | 140.027 | 101.55% |
| 15 | 25 | Max Papis | 98I/RV8C/F | 63.247 | -1.035 | -0.067 | 86.916 | 139.878 | 101.66% |
| 16 | 17 | Mauricio Gugelmin | 98I/108E/F | 63.287 | -1.075 | -0.040 | 86.861 | 139.790 | 101.72% |
| 17 | 12 | Jimmy Vasser | 98I/HRK/F | 63.388 | -1.176 | -0.101 | 86.723 | 139.567 | 101.88% |
| 18 | 19 | Michel Jourdain Jr. | 98I/XD/F | 63.406 | -1.194 | -0.018 | 86.698 | 139.528 | 101.91% |
| 19 | 9 | JJ Lehto (R) | 98I/108E/F | 63.473 | -1.261 | -0.067 | 86.607 | 139.380 | 102.02% |
| 20 | 21 | Tony Kanaan (R) | 98I/HRK/F | 63.479 | -1.267 | -0.006 | 86.599 | 139.367 | 102.03% |
| 21 | 40 | Adrian Fernandez | 98I/XD/F | 63.567 | -1.355 | -0.088 | 86.479 | 139.174 | 102.17% |
| 22 | 33 | Patrick Carpentier | 98I/108E/F | 63.766 | -1.554 | -0.199 | 86.209 | 138.740 | 102.49% |
| 23 | 24X | Robby Gordon | 98I/RV8C/F | 63.768 | -1.556 | -0.002 | 86.206 | 138.736 | 102.50% |
| 24 | 26 | Paul Tracy | 98I/HRK/F | 63.856 | -1.644 | -0.088 | 86.087 | 138.544 | 102.64% |
| 25 | 77X | Arnd Meier | 97I/XD/G | 63.945 | -1.733 | -0.089 | 85.968 | 138.351 | 102.78% |
| 26 | 2 | Al Unser Jr. | P98/108E/G | 64.233 | -2.021 | -0.288 | 85.582 | 137.731 | 103.24% |
| 27 | 34 | Dennis Vitolo | 98I/XD/F | 66.106 | -3.894 | -1.873 | 83.157 | 133.829 | 106.25% |
| 28 | 98 | Vincenzo Sospiri | EA/RV8C/G | 66.777 | -4.565 | -0.671 | 82.322 | 132.484 | 107.33% |