1988 · Round 6 · Practice 1 United States Grand Prix
Detroit Street Circuit, United States
Sunday, June 19, 1988
Detroit Street Circuit, United States
Sunday, June 19, 1988
Fastest
PRO
1:41.410
Margin
+0.797
to SEN
Most laps
—
PRO
Laps completed
—
Best lap, gap to the fastest driver and laps completed
| Pos | Driver | Best | Gap | Laps |
|---|---|---|---|---|
| 01 | PROMcLaren · McLaren MP4-4 · Honda | 1:41.410 | — | — |
| 02 | SENMcLaren · McLaren MP4-4 · Honda | 1:42.207 | +0.797 | — |
| 03 | BOUBenetton · Benetton B188 · Ford | 1:43.829 | +2.419 | — |
| 04 | MANWilliams · Williams FW12 · Judd | 1:43.903 | +2.493 | — |
| 05 | BERFerrari · Ferrari F1 87-88 | 1:44.578 | +3.168 | — |
| 06 | ALBFerrari · Ferrari F1 87-88 | 1:44.783 | +3.373 | — |
| 07 | PATWilliams · Williams FW12 · Judd | 1:45.473 | +4.063 | — |
| 08 | STRAGS · JH23 · Cosworth | 1:45.743 | +4.333 | — |
| 09 | ALLLarrousse · Larrousse LC88 · Cosworth | 1:45.997 | +4.587 | — |
| 10 | MARMinardi · Minardi M188 · Cosworth | 1:46.002 | +4.592 | — |
| 11 | NANBenetton · Benetton B188 · Ford | 1:46.051 | +4.641 | — |
| 12 | CAFBMS Scuderia Italia · Dallara BMS-F188 ~ Dallara 3087 · Cosworth | 1:46.280 | +4.870 | — |
| 13 | MODEuro Brun · Ford | 1:46.522 | +5.112 | — |
| 14 | ARNLigier · Ligier JS31 · Judd | 1:46.610 | +5.200 | — |
| 15 | LAREuro Brun · Ford | 1:46.650 | +5.240 | — |
| 16 | DECRial · Rial ARC01 Cosworth · Cosworth | 1:46.709 | +5.299 | — |
| 17 | JOHLigier · Ligier JS31 · Judd | 1:46.740 | +5.330 | — |
| 18 | CHEArrows · Arrows A10 Megatron ~ Arrows A10B · Megatron | 1:46.824 | +5.414 | — |
| 19 | DALLarrousse · Larrousse LC88 · Cosworth | 1:46.890 | +5.480 | — |
| 20 | PIQTeam Lotus · Lotus 100T · Honda | 1:46.940 | +5.530 | — |
| 21 | GUGMarch · March 881 · Judd | 1:47.017 | +5.607 | — |
| 22 | PERMinardi · Minardi M188 · Cosworth | 1:47.121 | +5.711 | — |
| 23 | TARColoni · Coloni FC188 (C2) · Cosworth | 1:47.312 | +5.902 | — |
| 24 | NAKTeam Lotus · Lotus 100T · Honda | 1:47.486 | +6.076 | — |
| 25 | LAROsella · Osella FA1I ~ Osella FA1L | 1:47.702 | +6.292 | — |
| 26 | BAITyrrell · Tyrrell 017 Cosworth · Cosworth | 1:48.228 | +6.818 | — |
| 27 | PALTyrrell · Tyrrell 017 Cosworth · Cosworth | 1:48.276 | +6.866 | — |
| 28 | CAPMarch · March 881 · Judd | 1:49.038 | +7.628 | — |
| 29 | WARArrows · Arrows A10 Megatron ~ Arrows A10B · Megatron | 1:49.983 | +8.573 | — |
| 30 | SCHZakspeed · Zakspeed 881 | 1:55.416 | +14.006 | — |
| 31 | GHIZakspeed · Zakspeed 881 | 10:39.323 | +537.913 | — |