PORTUGUESE GRAND PRIX - PRACTICE 1
25 Sep 1988
Autódromo do Estoril, Portugal
| Pos. | No. | Driver | Team | Time / Gap |
|---|---|---|---|---|
| 1 | 12 | Ayrton SennaSEN | McLaren Honda | 1:18.537 |
| 2 | 11 | Alain ProstPRO | McLaren Honda | +0.462s |
| 3 | 6 | Riccardo PatresePAT | Williams Judd | +1.157s |
| 4 | 5 | Nigel MansellMAN | Williams Judd | +1.788s |
| 5 | 16 | Ivan CapelliCAP | March Judd | +2.302s |
| 6 | 28 | Gerhard BergerBER | Ferrari | +2.317s |
| 7 | 19 | Alessandro NanniniNAN | Benetton Ford | +2.501s |
| 8 | 1 | Nelson PiquetPIQ | Lotus Honda | +2.629s |
| 9 | 20 | Thierry BoutsenBOU | Benetton Ford | +2.641s |
| 10 | 15 | Mauricio GugelminGUG | March Judd | +2.662s |
| 11 | 27 | Michele AlboretoALB | Ferrari | +2.897s |
| 12 | 36 | Alex CaffiCAF | Dallara Ford | +2.931s |
| 13 | 17 | Derek WarwickWAR | Arrows Megatron | +2.956s |
| 14 | 18 | Eddie CheeverCHE | Arrows Megatron | +2.988s |
| 15 | 14 | Philippe StreiffSTR | AGS Ford | +3.438s |
| 16 | 23 | Pierluigi MartiniMAR | Minardi Ford | +3.661s |
| 17 | 22 | Andrea de CesarisDEC | Rial Ford | +3.739s |
| 18 | 24 | Luis Perez-SalaPER | Minardi Ford | +3.936s |
| 19 | 29 | Yannick DalmasDAL | Lola Ford | +3.998s |
| 20 | 25 | Rene ArnouxARN | Ligier Judd | +4.013s |
| 21 | 26 | Stefan JohanssonJOH | Ligier Judd | +4.212s |
| 22 | 30 | Philippe AlliotALL | Lola Ford | +4.426s |
| 23 | 3 | Jonathan PalmerPAL | Tyrrell Ford | +4.511s |
| 24 | 21 | Nicola LariniLAR | Osella | +4.514s |
| 25 | 9 | Piercarlo GhinzaniGHI | Zakspeed | +5.163s |
| 26 | 31 | Gabriele TarquiniTAR | Coloni Ford | +5.270s |
| 27 | 2 | Satoru NakajimaNAK | Lotus Honda | +5.325s |
| 28 | 33 | Stefano ModenaMOD | Euro Brun Ford | +5.539s |
| 29 | 4 | Julian BaileyBAI | Tyrrell Ford | +5.694s |
| 30 | 32 | Oscar LarrauriLAR | Euro Brun Ford | +6.609s |
| 31 | 10 | Bernd SchneiderSCH | Zakspeed | +6.726s |