The final practice for the 2011 Belgian Grand Prix would commence with rain falling and as the cars took to the track there would be plumes of spray coming from the cars. As the rain increased the drivers would include their installation laps, including both AT&T Williams F1 drivers Rubens Barrichello and Pastor Maldonado. After ten minutes the track would fall silent as the rain started to ease. Despite this there would be little chance of the track drying. A few drivers would return to the track with nearly half the session completed. Alguersuari would set a 2m:30.210 to set the first time. team-mate Buemi would set a 2m:14.207 while Alguersuari would improve with a 2m:14.985.

More drivers would take to the track including Rubens and Pastor. Rubens would pit without setting a time but Pastor's first time would be a 2m:21.430 to be fourth. Webber would go fastest with a 2m:14.143. Vettel was now fourth from Senna and Petrov. Buemi had improve d but remained in second as team-mate Alguersuari went fastest with a 2m:13.357. Buemi would also improve to be fastest with a2m:13.306. Pastor was now in eighth with a time of 2m:16.755. Sutil would move up to third, 2m:13.785, as Rubens remained in the pits. Pastor would find extra pace setting a 2m:15.322 to be fifth. With twenty minutes remaining Rubens would come out as both Buemi and Alguersuari pitted. Both McLaren's remained in their pits as Kobayashi moved up to eighth. Petrov would take sixth from Pastor with a time of 2m:15.096.

Sutil would go fastest with a time of 2m:13.231, but his team-mate Di Resta would go faster with a 2m:12.955. Pastor would pit while Rubens was yet to set a time. But on his first lap he would set a 2m:18.150 to be fourteenth. Both Torro Rosso cars were back out on the track but we still had yet to see times from the Ferrari's or McLaren's. Schumacher would move into second with a 2m:13.199. Rubens was on a faster lap but he would pit prior to setting a time. The track conditions were starting to get close to the point where intermediates would be the right choice. Alguersuari would find time to again be fastest with a 2m:11.045. Buemi was also on a quicker lap as Schumacher improved with a 2m:12.984 to be third. Buemi would finish with a 2m:10.580.

Pastor and Rubens were now tenth and fifteenth with ten minutes remaining. Alguersuari was again fastest with a 2m:09.948. Rosberg would return to his pit with a right front puncture, currently in sixteenth. Both Red Bull cars were out on the track, running on the intermediate tyre. Button was also out on the track running on the intermediates. Button would move into second with a time of 2m:10.257 while Vettel was now fourth. Alonso was out on a slow lap as Massa remained in his pit. Webber would set a 2m:8.998 to be fastest while Hamilton's first effort would see him eighth. So Webber was leading from Alguersuari and Button. Hamilton would move up to fifth while for Williams Pastor was in thirteenth with a lap of 2m:14.934. Vettel would pit while Sutil would move up to seventh.

As the final minutes of the session counted down Pastor would improve two places to be eleventh with a 2m:13.074. Hamilton would improve to now be second, 2m:09.046. With the end of the session as rain again started to fall Webber would still be fastest from Hamilton, Alguersuari, Button, Vettel, Buemi, Rosberg, Sutil, Senna, and Schumacher in tenth. Pastor would finish in thirteenth while Rubens would be in thirteenth. Again Pastor had been able to finish ahead of his more experienced team-mate in what were difficult conditions. As for qualifying it was looking more than likely that it would be run under wet conditions.

Pos  Driver	    Team		  Time       Laps
 1.  M Webber       Red Bull-Renault      2m08.988s  7
 2.  L Hamilton     McLaren-Mercedes      2m09.046s  8
 3.  J Alguersuari  Toro Rosso-Ferrari    2m09.931s  16
 4.  J Button       McLaren-Mercedes      2m10.257s  7
 5.  S Vettel       Red Bull-Renault      2m10.402s  9
 6.  S Buemi        Toro Rosso-Ferrari    2m10.580s  15
 7.  N Rosberg      Mercedes              1m10.837s  12
 8.  A Sutil        Force India-Mercedes  2m11.437s  13
 9.  B Senna        Renault               2m11.664s  14
10.  M Schumacher   Mercedes              1m11.667s  10
11.  P di Resta     Force India-Mercedes  2m11.874s  13
12.  H Kovalainen   Lotus-Renault         2m13.036s  15
13.  P Maldonado    Williams-Cosworth     2m13.074s  12
14.  K Kobayashi    Sauber-Ferrari        2m13.182s  12
15.  V Petrov       Renault               2m13.290s  15
16.  R Barrichello  Williams-Cosworth     2m13.778s  12
17.  S Perez        Sauber-Ferrari        2m14.334s  14
18.  J Trulli       Lotus-Renault         2m14.682s  11
19.  J D'Ambrosio   Virgin-Cosworth       2m17.159s  12
20.  T Glock        Virgin-Cosworth       2m18.039s  10
21.  D Ricciardo    HRT-Cosworth          2m19.001s  12
22.  T Liuzzi       HRT-Cosworth          2m19.001s  14
23.  F Massa        Ferrari               2m19.597s  7
24.  F Alonso       Ferrari               no time    5