0km - Gilbert comes home ahead of Mollema 6:46 down to pick up some useful green jersey points. Rojas leads the peloton over a minute later. Voeckler crosses the line to retain his yellow jersey.
0km - Bak crossed the line five minutes down ahead of Pineau, Boasson Hagen and Gusev, while Tjallingii and Petacchi finish soon afterwards.
0km - Thor Hushovd becomes the first world champion since Oscar Freire in 2002 to win a stage of the Tour de France.
0km - Moncoutie comes home 11 seconds down and a disconsolate Roy takes third, 25 seconds back.
0km - A superb victory for the world champion Thor Hushovd!
1km - Hushovd passes the flamme rouge with a huge smile on his face...
1.5km - Moncoutie now passes Roy and leaves him for dead. Hearbreak for FDJ and Roy.
2km - Hushovd doesn't even stop as he passes Roy - he doesn't want to let Moncoutie back in it, and he is riding to a certain victory now.
2.5km - What an acceleration from the world champion! Hushovd has almost caught Roy now!
3km - Roy may just hold on. He looks exhausted, but he's determined. Moncoutie has a dig, but then Hushovd puts in an attack.
3.5km - The peloton still has 10km left to ride.
4km - Hushovd is now back in the groove - he knows he can't delay the chase any more. Moncoutie stays in his wheel. This is going to be very very close.
5km - Roy has five kilometres to go and he still has 15 seconds.
6km - There's a real stand off between Hushovd and Moncoutie - neither of them seem happy to work. The Frenchman knows he has no chance if it comes to a sprint finish, but Thor knows Moncoutie may try and go for a long one if they catch Roy...
7km - But Roy remains defiant and has pulled out the gap a little. Perhaps Hushovd and Moncoutie are debating things behind...
7.5km - Just 15 seconds now, and this is Hushovd's stage to lose...
8km - It is going to be touch and go for Roy. Moncoutie is struggling to hold the wheel of Hushovd, who has the bit between his teeth. Roy is now onto a slight rise - it will be leg sapping and totally demoralising.
10km - The gap is just 20 seconds now for Roy...
11km - Leopard Trek are onto the front of the peloton with Movistar: clearly both feeling a bit threatened by that Gilbert move.
12km - Gilbert has joined Mollema on the back end of the descent. Perhaps the Belgian is hoping to pick up some green jersey points at the finish.
13km - This would be heartbreak for both Roy and France: Hushovd would be the clear favourite if it comes down to the bunch sprint.
15km - It may be heartbreak for Roy, who passes the 15-to-go banner with a 31 second gap. They are going to catch him.
17km - Hushovd and Moncoutie may be eating into Roy's lead, but the gap back to the peloton is growing: nine minutes now for the FDJ rider.
20km - The gap is down to 1:05 as the two chasers pass the 20-to-go banner. Minutes back, Gilbert passes the 25-to-go banner.
22km - Hushovd and Moncoutie are riding together, 1:20 behind the lone leader Roy. The winner will be one of these three, with the FDJ rider the clear favourite.
24km - Back in the peloton, Gilbert attacks off the back of the Col du Soulor. Got to admire the chap: there's no reason for him to attack except for the simple fact that he can.
25km - Thor passes Moncoutie and the two have a few words - the world champion probably wants to know if the Frenchman is willing to help him chase Roy.
27km - Hushovd has almost caught Moncoutie - what a superb descent this is. But can the Norwegian catch Roy? He's got another minute and a half to make up on the Frenchman...
32km - Roy has opened his gap up on Moncoutie, who in turn is being caught by Hushovd. Back in the peloton, Europcar's Anthony Charteau leads the descent, with Voeckler tucked in just behind.
34km - Meanwhile, Hushovd is being chased by some Norwegian fans in Viking helmets.
34km - Roy is onto the Col du Soulor, the small climb half way down the backside of the Aubisque. He could well be riding to France's first victory this year - although those fans getting too close won't help him. The FDJ rider takes a swipe at some Basque supporters who almost jump in the way.
35km - The peloton crosses the summit, led by Voeckler and, interestingly, Andy Schleck, just over eight minutes down on Roy. It's very misty and the road is quite slippery, so this will have to be handled with care.
37km - This is a frightful descent: the drop to the left of the road is pretty much verticle and covered in jaggen rocks. One false move and it's curtains.
38km - Venendert attacks from the peloton, catching Bouet quickly. The Belgian must think there are some more points available for the KOM competition, but he's got that one wrong.
40km - Bak, Boasson Hagen and Pineau cross the summit some five minutes down.
43km - Jeremy Roy (FDJ) approaches the mist-clad summit of the Col d'Aubisque. He's be in the polka dot jersey tomorrow. The Frenchman crosses the line 53 seconds ahead of compatriot Davide Moncoutie (Cofidis). World champion Thor Hushovd (Garmin-Cervelo) comes over 2:03 down on Roy. Game on.
44km - The spectators are out in their thousands today, and they all seem to be wearing polka dot t-shirts, no doubt thrown to them by the caravan. Roy has a huge eight minutes on the peloton now and he's put a huge amount of time into his fellow escapees. Only Moncoutie and Hushovd can catch him now. But they won't on this climb...
45km - Moncoutie still 47 seconds back on Roy. The Cofidis rider is a noted recluse, so maybe he's happy to just ride along alone at the moment. The problem for both riders is that Hushovd is just 22 seconds behind Moncoutie - and the Norwegian is the danger man for the descent and sprint.
46km - Rabobank's Robert Gesink is on the back of the peloton. Up front, Roy now has 40 seconds on Moncoutie and is looking good to trouser all the points at the top of this HC climb.
46km - Philippe Gilbert believes that Alberto Contador is not suffering, but bluffing. In his latest video chat with Eurosport, the Belgian gives his views on who's looking good in the Pyrenees. Gilbert: Contador is bluffing
47km - Moncoutie actually looks to be fading a little. The summit is in five minutes and he'll need a big gap on the likes of Hushovd and Boasson Hagen if he wants to taste victory today. Roy has 7:15 on the bunch, so he's actually pulling out further ahead.
48km - Roy is proving to be a right handful on this climb. The Frenchman is holding off Moncoutie and could well be riding into the polka dot jersey.
49km - Delage is caught by the peloton after his attempt at breaking clear. Europcar still control things on the front, with no attacks coming from any of the big leaders.
50km - Riders are falling off the back of the bunch - Cancellara, Greipel and Hoogerland all go the same way as Cavendish and Farrar.
51km - It's getting steeper now, and Roy begins to distance Hushovd. The Norwegian is caught by Moncoutie, who in turn has dropped Boasson Hagen.
52km - Boasson Hagen has joined Moncoutie as they hunt down Hushovd and Roy. 'The Postman' Moncoutie will need to pass and drop all these riders if he want a chance of winning today, that's for sure.
53km - Moncoutie has now made his move, and is being chased by Boasson Hagen. Hushovd, who has been joined by Roy, still has six minutes on the bunch.
54km - FDJ's Mickael Delage also attacked from the peloton and is further up the road from Bouet and Mollema. Back on the front, Hushovd still leads Roy by about 10 seconds.
55km - Attack from the peloton: Maxim Bouet (AG2R) and Bauke Mollema (Rabobank) jump off the front of the Eurocpar-pronged peloton.
56km - Now Moncoutie decides he's going to react. The Frenchman ups the pace to provoke a reaction, while Roy rides off the front in pursuit of Hushovd.
57km - ATTACK: World champion Thor Hushovd springs off the back and opens up a gap off the front of the break.
57km - The leaders are onto the HC climb of the Col d'Aubisque (16.4km at 7.1 per cent). It's a demanding climb which is often raced in wet, humid conditions, making it all the more arduous. Following the summit there still remains 42-odd kilometres to the finish at Lourdes, most of which are downhill (with the exception of a slight run up the short Col du Soulor and a little hill outside the famous Christian pilgrimage town).
58km - Have your say: who is your tip for today? Both Moncoutie and Pineau are good climbers, but they're not ace at descending. If those sprinters are not too much in arrears atop the summit, could they catch them on the downhill?
60km - The nine-man group now has six minutes. But will that be enough for the three world class sprinters in thie break - Boasson Hagen, Hushovd and Petacchi - to stay clear over the Aubisque?
67km - HTC start the lead-out for the intermediate sprint points left - but only after Philippe Gilbert went on a little attack on his own. Rojas goes early, and that's a good tactic, because both Rojas and Movistar team-mate Ventoso pick up points ahead of Cavendish, who raises his arm afterwards in disgust - he feels Rojas boxed him in a little. One for the commissaires? Actually, replays show that Cav pipped Ventoso, so he only lost 1pt to his rival Rojas there in the end.
71km - The leaders approach the intermediate sprint Bielle - and it's uncontested, with Boasson Hagen crossing the line first. There will still be five points up for grabs for the riders in the peloton, so we might see it contested in around four minutes' time.
72km - Crash in the feeding zone: Leopard Trek's Jens Voigt comes down and needs a bike change.
73km - Katusha's poor Tour continues with the withdrawl of Vladimir Isaichev. They'll think twice about bringing an all-Russian line-up next year... if there is a next year.
76km - The leaders pass through the feeding zone. They'll be pleased about their gap but worried about the task in hand, and the feasome Col d'Aubisque ahead.
78km - We spoke to Johnny Hoogerland this morning before the start. The Dutchman lost his polka dot jersey yesterday despite an attempt to break clear on the first climb. Video: Hoogerland upbeat despite losing jersey
80km - Frank Schleck seems in a sprightly mood as he's filmed by the TV crew back in the bunch. The lead is up to 4:20 but none of the nine men up front are a threat for the yellow jersey Voeckler, whose Europcar team are controlling things just fine. They're getting used to doing this.
85km - Jeremy Roy took the point atop the Belair climb. The peloton crossed the summit 4:13 down.
85km - Off the back of the peloton, Johnny Hoogerland (Vacansoleil) receives some attention on his injured legs. Probably getting those 33 stitches checked up...
86km - After Robert Gesink's 'jour sans' yesterday, the youth standings had a reshuffle: FDJ youngster Arnold Jeannesson now wears the white jersey ahead of Rein Taaramae (Cofidis) and Rigoberto Uran (Sky). White jersey standings
87km - The leaders are onto the Cat.4 climb to Belair. Very interesting composition of this group and you'd have to say that in Davide Moncoutie, France has a very good chance of a first stage win in this year's race. The veteran climber will hold the upper hand on the ascent of the Aubisque, but if he's still with his co-escapees at the summit, he'll have to watch out for the likes of Boasson Hagen and Roy.
88km - The nine-man breakaway are: Maarten Tjallingii (Rabobank), Thor Hushovd (Garmin), Dmitriy Fofonov (Astana), Edvald Boasson Hagen (Sky), Jerome Pineau (Quick Step), Jeremy Roy (FDJ), David Moncoutie (Cofidis), Alessandro Petacchi (Lampre), Vladimir Gusev (Latusha) and Lars Bak (HTC-Highroad). They have 3:05 on the bunch.
91km - Yellow jersey Thomas Voeckler stops on the side of the road for a call of nature. He rode extraordinarily well yesterday alongside team-mate Pierre Rolland to Luz Ardiden. So well, in fact, that out blogger decided to pay homage to the Europcar duo in yesterday's blog... Blazin' Saddles: Voeck 'n Roll
92km - Hushovd, Pineau, Boasson Hagen, Moncoutie, Petacchi, Roy and Bak are all in the break. They already have two minutes on the bunch.
93km - Dutchman Lars Boom decides to call it a day. The Dutchman was struggling more than five minutes off the pace and gets off his bike and into the Rabobank team car.
94km - This break is to stick after the peloton appears to slow down and let it go. The Europcar team of yellow jersey Thomas Voeckler come to the front to marshall affairs.
95km - This Hushovd group of around 10 riders look to be openign up a little gap. Full composition coming up.
97km - It's coming back together and several riders are trying to ping off the front of the bunch. The Roy quintet still have a small gap, and Hushovd has yet to give up.
98km - World champion Thos Hushovd is also in the Gilbert group, as are Rojas, Barredo and Petacchi (remember him?). Davide Moncoutie is there too. But the bunch is just 10 seconds behind so it's still touch and go.
100km - Roy has 10 seconds on the chasing group, which has pretty much been rejoined by the peloton. Three riders are in pursuit and they're about to rejoin Roy. They're followed by the small Gilbert group, who are just a cluster of seconds ahead of the bunch. It's going to come back together surely now that it's back on the flat. Rojas is in the Gilbert group, interstingly.
105km - The field has been completely strung out on this descent following the climb. Philippe Gilbert is in the leading group of around 20 riders as FDJ's Jeremy Roy goes on the offensive once again. First up the Tourmalet yesterday, Roy has been a permanent fixture in breaks this July.
106km - Lars Boom is already 3:14 down on the leaders, and cuts a sorry figure as he crosses the summit of the climb.
107km - That climb has forced a big split in the peloton, with a leading group of around 40 riders out ahead of the peloton. Rabobabk are at polar opposites, with Lars Boom really suffering and Carlos Barredo breaking off the front.
108km - Omega Pharma-Lotto's Jelle Vanendert - second in yesterday's stage - attacks towards the end of the climb to pick up two points over the summit in first place ahead of Nicki Terpstra of Quick Step (1pt).
110km - The riders are on to the Cat.3 Cote de Cuqueron, the first of two lower category climbs before the massive HC ascent of the Col d'Aubisque.
112km - The race is LIVE NOW on British Eurosport (Sky 410 / Virgin Media 521) and is also available on your PC via the Eurosport Player: click here to subscribe
115km - That's it for Andreas Kloden: the German rider decides enough is enough after days of taking a battering, and RadioShack are down to just five men.
116km - Chavanel has another pop, but he and a couple of riders are reeled in once more.
118km - The attacks are coming in thick and fast as rider after rider tries to form a break. Kloden is back in with the peloton. It's going to be a long day for the German veteran.
120km - Today's intermediate sprint comes 15km before the foot of the Col de l'Aubisque. Britain's Mark Cavendish (HTC) leads the green jersey competition and will look to pick up some points if they're not taken by a break. Green jersey standings
122km - CRASH: A few riders go down in the pack, including AG2R's Christophe Riblon and RadioShack's Markel Irizar. Nothing serious, and they're all back on their bikes.
125km - The Chavanel break was rather short-lived: the group is swept up by the peloton and it's back as one - with the exception of Andreas Kloden, who rides 42 seconds off the back.
128km - BREAK: 15 riders have opened up a gap after an attack by French national champion Sylvain Chavanel (Quick Step).
130km - Today's stage has been ridden at a fierce pace so far - an average speed of just over 50 km/h. Stage 13 guide: Voeckler looks to hang on
135km - Yesterday's stage winner, the Olympic road race champion Samuel Sanchez, is the new king of the mountains after picking up the doubled points atop Luz Ardiden. The Euskaltel rider leads Jelle Vanendert, Jeremy Roy and Frank Schleck in the standings, with previous polka dot jersey Johnny Hoogerland now in fifth. King of the mountains standings
140km - Those three leaders were reeled in - and the same happens to another pair of riders who tried to breakaway. It's very active out there - everyone knows that if they reach the top of the Aubisque in pole position (provided they have a good minute or so gap), they should win the stage.
145km - Loads of movement early on in this punchy stage. Three riders have broken clear, while a cluster of riders are already off the back, including RadioShack's Andreas Kloden, who crashed again yesterday.
150km - Two riders have already jumped clear of the peloton, but they're quickly reeled in. Yesterday, Thomas Voeckler surprised us all with a superb ascent to Luz Ardiden, conceding just 20 seconds to race favourites Cadel Evans and Andy Schleck, and just a handful of seconds to reigning champion Alberto Contador. General Classification
152km - One withdrawl to report: Gert Steegmans (Quick Step) has pulled out. The Belgian was second-to-last. Yesterday, Russian Denis Galimzaynov (Katusha) finished outside the time limit and was eliminated. Chapeau to the youngster though - he finished the stage on his own almost an hour behing the winner and more than 20 minutes behind the autobus.
153km - The sun is out and the sky is blue as the remaining 174 riders leave Pau in glorious sunshine and in temperatures of in the mid-20s. Pau weather report
12:20 - The short 152.5km stage from Pau to Lourdes features the fearsome Col de l'Aubisque and will see Thomas Voeckler fighting to stay in yellow.