The days testing  was again delayed in the morning as the teams had to contend with showers soaking the track. It was not until around the middle of the day before the track would dry allowing for quick times. But there was the benefit of allowing Michelin to test their latest wet weather tyres.

Ralf would complete thirty seven laps on the day, with his best time been a lap of 1m:24.201. Ralf was faster than the second placed Ferrari of Michael Schumacher by 0.263 seconds. For Marc Gené his day would see him complete sixty nine laps with a best time of 1m:24.834, fifth fastest. Gene would suffer a gearbox failure during the day. Both times were faster that than the fastest race time set in the 2001 race at Monza.

Tim Newton, WilliamsF1 Test Team Manager, commented on the days testing: “Again we were held up by rain showers today but were pleased that Marc Gené was able to complete a race distance. Ralf took full advantage of the only dry track window of the day and secured the best time on an otherwise wet track day. We made some changes on Ralf’s car during the day to isolate and fix a problem. Tomorrow we have a driver change with Juan Pablo and Antonio joining the test team and we are hoping for a stable weather forecast."

From Thursday Juan Pablo Montoya and Antonio Pizzonia will take over the testing duties for the team.

Michael Schumacher would complete 102 laps on the circuit, working on tyres and aerodynamics. Jaguar's Pedro de la Rosa would finish the day in third.
BAR's Olivier Panis, Marc Gene,  and Jaguar's Eddie Irvine made up the top six. Irvine didn't come away without any problems as well, stalled his Jaguar in the morning.

Seventh saw McLaren's David Coulthard, but he was not happy with the performance of the car on this sort of circuit. Eighth was taken by Renault's Jarno Trulli. Renault Technical Director Mike Gascoyne commenting: "A good day for the team, during which the drivers worked well. We had productive results from our tyre work this morning and successfully completed a full race distance."

Nick Heidfeld finished ninth. He said: "We have made good progress today. However, I lost two hours while the Team cleaned the foam in the car from the fire extinguisher. We lost momentum of testing when the track was dry. When we started again after 5.30 pm a light rain made it very slippery to improve lap time. Overall, I am well pleased with the way the car handled."

Behind Heidfeld came Jenson Button in tenth and in eleventh was BAR's Jacques Villeneuve who would suffer an engine  problem. Toyota continued the running with Stephane Sarrazin, but regular driver Allan McNish took over the second car. Minardi's Alex Yoong returned to the track after his break from racing but was the slowest driver. He would complete seventy four laps without any problems

1. R Schumacher Williams BMW FW24 M 1:24.201 039
2. M Schumacher Ferrari Ferrari F2002 B 1:24.248 102
3. P de la Rosa Jaguar Cosworth R3B M 1:24.560 057
4. O Panis BAR Honda 004B B 1:24.839 041
5. M Gene Williams BMW FW24 M 1:24.842 069
6. E Irvine Jaguar Cosworth R3B M 1:24.916 039
7. D Coulthard McLaren Mercedes MP4/17 M 1:25.113 036
8. J Trulli Renault Renault R202 M 1:25.475 086
9. N Heidfeld Sauber Petronas C21 B 1:26.080 052
10. J Button Renault Renault R202 M 1:26.107 056
11. J Villeneuve BAR Honda 004B B 1:26.174 049
12. T Sato Jordan Honda EJ12 B 1:26.761 070
13. A McNish Toyota Toyota TF102 M 1:27.252 038
14. S Sarrazin Toyota Toyota TF102 M 1:27.406 059
15. A Yoong Minardi Asiatech PS01 M 1:28.087 074