Three days of testing at Jerez is over, and the real star of the show is obvious for all to see: The Weather. Of the 18 hours of track time that the MotoGP riders had at their disposal, only about 4 were in consistent conditions, and that was in the pouring rain on Saturday.

An afternoon of dry track time – well, dryish, with groundwater seeping through the track from the hills at Jerez, which have been lashed by unusually heavy rain all winter long – on Sunday and a bright start to Monday morning left the riders hopeful, but it was not to be.

It took 15 minutes for the first rain to arrive. The track opened at 10am. At 10:15am, the rain started to fall, leaving most of the teams twiddling their thumbs in the garages and hoping for some dry track time.

Valentino Rossi being fastest in a dry MotoGP session brought joy to the hearts of his millions of fans, but also relief to the writers of motorcycle racing headlines. For the past two years, with the exception of a damp and freezing session at Silverstone, the media – especially in Italy – have spent many hours puzzling over how to shoehorn Rossi’s name into a news item without it appearing overly clumsy. With little success: “Pedrosa grabs pole, Rossi to start from ninth” sounds, well, as awkward as it does dispiriting.

On Sunday, there was no need for tricky sentence construction. Valentino Rossi grabbed the headlines the way he would want to, on merit. Under a warm sun, and a dry track – well, relatively, but more of that later – Rossi just flat out beat his teammate, and the factory Hondas, and all the other 24 MotoGP machines that took to the track for the second day of the test at Jerez.

Beating his teammate, even if it was by just fifteen thousandths of a second, was crucial. That hadn’t happened in any of the previous tests, and the gap between himself and Jorge Lorenzo stayed pretty constant: at least three tenths of a second.

It rained today in Jerez. Boy did it rain. The heavens were open for much of the day, with the intensity of the rain varying between a light drizzle and an absolute deluge, sending people scurrying for cover when the skies darkened too much.

A few brave souls ventured out to put in laps, but they did not last very long in the conditions. Until around 3pm, that is, when the rain let up, at least for an hour or so, and everyone took to the track. For two hours, testing was at full tilt, before the rain returned to chase most of the MotoGP men back into the pits.

Though having that much rain is hardly what the riders ordered, it still has its advantages. “It’s good to be able to test on a fully wet track,” Wilco Zeelenberg said after testing. “Normally, it’s that half-wet, half-dry stuff, which is hopeless.” Real work could be done on a wet set up, and lessons learned for 2013.

In a teleconference hosted by the Indianapolis Motor Speedway, Nicky Hayden hopped on a phone with a bunch of paddock journalists to talk about the pre-season testing, the plan for the 2013 season, and the changes to the Ducati Corse MotoGP team.

A development year for the Italian team, Ducati will have four riders on factory equipment to pull data and input from, as the the Bologna Brand hopes to take the fight back to the Japanese OEMs in coming seasons.

Candid as always, you can read the full transcript of the teleconference after the jump.

Formerly General Manager of Ducati Corse, and left largely to blame for the Italian company’s recent short-comings in the MotoGP Championship, Filippo Preziosi has resigned from Ducati Motor Holding, just ahead of his transition into the role of  Ducati’s Director of Research & Development.

Officially citing reasons of poor health for his departure, many following Preziosi’s situation will however see his resignation as the logical conclusion to a two-year debacle that saw Valentino Rossi noticeably unable to compete with the other factory riders, and go winless for the two years he was with the Italian manufacturer.

Dani Pedrosa was once again fastest on the final day of testing at Sepang, topping the timesheets for the fifth time in six total days of testing at Sepang. Though the Repsol Honda man looks to be the pre-season favorite so far, he does not leave the test as fastest overall, however. That honor goes to Jorge Lorenzo, who put in a scorching lap on Wednesday to set the fastest time over all three days of the test.

The riders got off to a late start on Thursday, rain meaning that the bulk of the riders kept to their garages until the track started to dry out at the end of the morning. A few men put in laps in the wet, but once the track dried out, enough riders started putting in laps to clean the worst of the dirt left by the rain from the track, though track conditions were never as good as on the first couple of days.

Pedrosa soon took charge of proceedings, later knocking another half a second off his time late in the afternoon. Rookie Repsol teammate Marc Marquez impressed yet again, taking 2nd on the timesheets with his very last lap, after the final 30 minutes of the session turned into a qualifying session.

Marquez continued to concentrate on learning the ropes on a MotoGP machine, and the longer runs he put in were a little further off the pace of Pedrosa, and still not as consistent as they will need to be, but he proved with his flying lap that he will be starting from the front of the grid by the time the season starts.

Jorge Lorenzo ended the final day of the test with the 3rd fastest time, but leaves Sepang as fastest overall. Lorenzo’s best time was over four tenths slower than Pedrosa’s on Thursday, but the Spaniard spent the latter part of the day working on race set up, ending the test with a mightily impressive race simulation of 20 laps, 16 of which where in the 2:01s, most of them fast 2:01s.

Lorenzo’s race simulation follows the pattern from his championship-winning season in 2012, making a very long race simulation to test the bike and himself in punishing conditions. Less characteristic was a mistake the Spaniard made, putting in one lap of 2:05 towards the end, an anomaly among the scorching laps that surround it.

Jorge Lorenzo has topped the second day of testing at Sepang during the MotoGP class’ second visit to the circuit, the factory Yamaha man finding the three tenths of a second he was seeking on day 1 of the test. Lorenzo was quick right out of the gate, setting a blistering mid-2:00 lap on his first exit, a time nobody would better except himself before the afternoon break.

Even more impressive than his time is his consistency, however: Lorenzo is seemingly able to crank out mid-2:00 laps at will. The Spaniard’s performance so far has been eerily similar to the test last year, where he laid the foundation for his 2012 title by grinding out lap after lap at race pace.

With Lorenzo on top of the timesheets, Dani Pedrosa was forced to settle for second, over a third of a second behind his main rival for the title. Pedrosa had spent most of the day working on suspension settings for Honda RC213V, but had been hampered by a problem with one of his bikes. Tomorrow, he told reporters, his team would try to put the best of what they’d found at the test together.

An impressive Cal Crutchlow set the 3rd fastest time of the day, the Monster Tech 3 Yamaha man six tenths off the pace of Lorenzo on the factory bike. The lap by Crutchlow is close to his best time around the Malaysian circuit, and given the disparity between his satellite-spec M1 and the factory bike of Lorenzo, all the more admirable.

Dani Pedrosa has taken up at the second Sepang MotoGP test where he left off after the first. The Repsol Honda man led for most of the day, having set a fast time fairly early in the morning. His rival at the Factory Yamaha squad did much the same, Jorge Lorenzo taking 2nd a couple of tenths behind Pedrosa.

Marc Marquez continues to impress, the Spanish prodigy ending the day with the 3rd fastest time, just over a third of a second off his Repsol Honda teammate, and a little over a tenth behind reigning world champion Jorge Lorenzo.

Also impressive was Stefan Bradl, the LCR Honda man achieving his stated aim for the test of matching the pace of Valentino Rossi. The strong times by Marquez and Bradl demoted the Factory Yamaha returnee to 5th, though the difference was minimal, just a few hundredths separating the threesome.

After an absence of some three weeks or so, the MotoGP teams once again return to action at Sepang for the second official test of the pre-season. The intervening period has seen a flurry of activity in the factories in Japan and Italy, and at CRT team headquarters around Europe.

The data accrued on the first visit to the Malaysian circuit has been analyzed, assessed, and more modifications made and ideas worked out for the second Sepang test. So what can we expect to see in Malaysia for the next three days? And what are the key details to keep an eye on?