After a somber tribute to Marco Simoncelli, racing at Valencia commenced Sunday under ominous skies. While the weather has been variable throughout the Valencian GP, Sunday’s forecast was especially treacherous, as the off-and-on drizzle was neither damp enough for a full-wet setup, nor dry enough for race slicks. Nothing better highlighted this fact than a blitzkrieg lap by American Josh Hayes, which saw the AMA Superbike Champion on slicks dust the rest of the rain-shod MotoGP field by three seconds on the closing Warm-up Session lap.

With the wetter weather favoring the struggling Ducatis of Nicky Hayden and Valentino Rossi, the chance of rain equated to a chance for a Ducati Corse podium. The RC212V of Casey Stoner of course stands in their way as always, as does the Repsol Honda of Dani Pedrosa. Also fast this race weekend has been Alvaro Bautista, the Spaniard surely encouraged by a local crowd, as well as the prospect that his results in Valencia could help sway a very reluctant Japanese management into racing in MotoGP next year.

Randy de Puniet is also worth mentioning, as the Frenchman has been one of the fastest Ducatis all weekend, and missed a front-row start by only .06 seconds. With four manufacturers starting in the top five grid spots, the 2011 MotoGP Championship and the era of 800cc GP bikes, concluded with some of the most diversity it has ever seen on starting line.

With every bike from the three GP classes out on the Circuit de Comunitat Valenciana, the sight was one that had to be seen in person to be truly appreciated. Lead by former-World Champion Kevin Schwantz, who rode Marco Simoncelli’s San Carlos Honda Gresini RC212V race bike, MotoGP, Moto2, & 125GP riders made their way around the 14 turns of the Spanish track, stopping short of the finish line. Watching two minutes of Valencian fireworks, MotoGP riders stood with the Simoncelli family, honoring the loved Italian one more time.

The entire event was somber, and as the fireworks subsided, the clamorous noise was contrasted with an eerie silence on the track and in pit lane. Riders walked back to the paddock with solemn & grim faces, barely saying a word to each other, if saying any words at all. Similarly, team members carried rear stands and walked race bikes back to pit lane in complete silence, perhaps reflecting on Marco one more time. Thirty minutes later, noise returned to Valencia, as the final 125GP race ever commenced.

Perhaps none of the MotoGP riders have been affected by the loss of Marco Simoncelli more so than Valentino Rossi. Not only was Rossi “like a brother to Marco,” but the Italian was deeply shaken over his involvement with Marco’s accident at Sepang. With both Edwards and Rossi putting on a strong face publicly, the rest of us can only imagine the thoughts and grief that most be occurring internally. Everyone processes their grief differently, and one of Rossi’s more cathartic endeavors this weekend is to honor Marco with a special helmet for the Valencian GP. More photos after the jump.

Sunday morning here in Valencia marks the final race of the 2011 MotoGP Championship, and the already bittersweet Grand Prix will become increasingly somber as the GP paddock will also be paying its final respects to Marco Simoncelli. Starting at 10:10am, 125GP, Moto2, and MotoGP riders will partake in a parade lap around the Circuito de la Comunitat Valenciana. The procession will be lead by Kevin Schwantz, who will ride Marco Simoncelli’s San Carlo Honda Gresini RC212V race bike for the occasion.

With rain coming down during the 125GP session, MotoGP narrowly avoided its own water-soaked qualifying. With wet sessions on Friday, the order of things was disrupted as the Ducatis clearly could overcome their problems in the damp conditions. As the track dried though, the Honda dominance returned, making the Spanish skies a huge factor for Sunday’s Valencian GP. Depending on who you talk to in the paddock, it’s either a guarantee for rain tomorrow, or it will be assuredly sunny, meaning no one has a clue what the weather will really be like.

While Stoner and Pedrosa have had their accustomed positions on the time sheets, Valencia has seen moments of brilliance from Hayden, Rossi, de Puniet, and Bautista, as all four riders have had an extra pep in their step during the inclement weather. The Spanish venue seems especially to favor the Spaniard Bautista, as the Suzuki rider has been a cut faster than previously in the season, no doubt encouraged by a home crowd and the desire to help Rizla Suzuki secure a future in MotoGP.

The other notable standout this weekend has been American Josh Hayes, who has been aided by the rain and adapted readily to the Monster Tech3 Yamaha YZR-M1 typically ridden by Colin Edwards. Not having to learn the carbon brake discs of MotoGP, and with the Bridgestone tires blunted by the water, Hayes has come up to speed rather quickly on the M1, finishing FP1 with a respectable P10. How that learning curve would change in the dry though remains a pressing question mark on the AMA Superbike Champion’s mind, though that seems to be the case for many riders this weekend. Qualifying results after the jump.

With MotoGP riders at Valencia debuting their own personal tributes to Marco Simoncelli today, back in Italy an entirely different tribute has been undertaken, as the Misano Circuit is set to change its name to honor the fallen Italian motorcycle racer. While not one of Simoncelli’s favorite tracks, Misano was the Italian racer’s home venue, and hence forth it will be renamed from the Misano World Circuit to the Marco Simoncelli World Circuit in honor of the fallen rider.