LOUISVILLE, Kentucky,  (Reuters) – The $2.2 million  Kentucky Derby tomorrow is unlikely to unearth a potential  Triple Crown winner with the 20-strong field featuring a solid  yet unspectacular crop of three-year-olds.

Wood Memorial champion I Want Revenge is a 3-1 favorite to  win America’s most prestigious race, with Dunkirk and Pioneerof  the Nile next at 4-1 and Friesan Fire a 5-1 choice.

The rest of the capacity field for the mile-and-a-quarter  race have double-digit odds, perhaps signalling there are few,  if any, colts capable of claiming the Triple Crown in 2009.

Only 11 horses have won the Derby, the Preakness Stakes and  Belmont Stakes and none since Affirmed in 1978.  Yet even without a Triple Crown on the horizon, the Derby  can yield some surprising finishes, like in 2005 when 50-1  longshot Giacomo edged 71-1 choice Closing Argument. The dark bay I Want Revenge will break from the 13th post,  19-year-old jockey Joe Talamo and his connections preferring to  stay out of trouble before heading to the rail.

All of the contenders are happy to be breaking from the  auxiliary gate, posts 15 to 20, since six Derby winners have  started from there in the last 13 years.

Florida Derby runner-up Dunkirk opens from the 15 post with  Edgar Prado in the saddle, while the Bob Baffert-trained Santa  Anita Derby champion Pioneerof the Nile is just outside at 16. Friesan Fire, the bay son of 1992 Belmont Stakes champion  A.P. Indy, opens a little closer to the rail at six but trainer  Larry Jones told reporters, “We are in good shape.”

Jones’s grey filly Eight Belles broke both ankles and  collapsed shortly after finishing second in the 2008 Derby and  had to be euthanized. But the Kentucky native hopes to repeat  what had been an uncontested ride around the fabled Churchill  Downs track.

“We had the five last year with Eight Belles and worked out  a great trip,” he said. “(Friesan Fire) should be laying  anywhere from third to fifth early and suck back behind the  speed.

“Hopefully he’ll get a clear run when the real running  starts.”

Others with a chance to claim the $1.4 million winner’s  purse include Blue Grass Stakes runner-up Hold Me Back, Arkansas  Derby champion Papa Clem, and Illinois Derby winner Musket Man.

Even four-times Derby-winning trainer D. Wayne Lukas  believes his Kentucky-bred bay, Flying Private, has a chance  despite reaching the winner’s circle just once in 10 tries.

“He’s as good as some of them I brought here, including some  of them who have won,” said the Hall of Famer. “Charismatic went  on to be Horse of the Year (in 1999) but at this stage he’s  every bit as good as Charismatic.

“And I think he’s better than (1996 Derby champion)  Grindstone.”