Which dragon for which race?

Dramoria - Cold, Metal

Year of the Dragon - Earth, Water, Air, Fire

Blast Furnace - Fire, Metal

Ulster Meadows - Earth, Plant

Rime or Reason - Air, Cold

Marsh Lands - Plant, Water, Earth

Cherry Road - Fire, Plant, Earth

Shimmering Faultline - Lightning, Earth

Electric Skies - Lightning, Air

Radiant Run - Light, Water

Shining Valley - Light, Plant

Brightless Vale - Dark, Earth

Darkened Dash - Dark, Fire

Here are additional dragons you can win with based on track elements. I am including gem dragons that will win in each category as well.

Rime & Reason - (Air+Cold) Olympus, Snow, Blizzard
Dramoria - (Metal+Ice) Mine, Olympus, Rainbow, Steel
Electric Skies - (Lightning+Air) *RUBY, Sonic, Lunar Eclipse, Olympus, Thunder
Blast Furnace - (Fire+Metal) *Ruby, Forge, Brass, Olympus, Brass
Year Of The Dragon - (Fire+Air+Earth+Water) *Sapphire, *Opal, Panlong, Bone, *Panalog
Cherry Road - (Fire+Plant+Earth) *Opal, Olympus, Sakura- if not, Panalog
Ulster Meadows - (Plant+Earth) *Peridot, Tree, Moss
Marshlands - (Water+Plant+Earth) *Pearl, Swamp, Olympus, Seaweed
Shimmering Faultline - (Lightning,Earth) *Emerald, *Peridot, Quake, Crystal

My experience shows that the gem dragons do very well as long as you use the ones I listed for each race. I always choose the gem dragon if available in my list for a particular race. The strongest dragons are gem, Panlong, and Olympus if available for that race. Good luck!

Dramoria - Mine dragon and Steel
Year of the Dragon - Panlong if you have it; if not - Blazing dragon
Blast Furnace - Forge dragon or Brass
Ulster Meadows - Tree dragon or Moss dragon
Rime or Reason - Snow dragon or Blizzard dragon
Marshlands - Swamp dragon or seaweed dragon
Cherry Road - Sakura dragon-if not, flower or poison
Shimmering Faultline - Crystal dragon or quake dragon
Electric Skies - Sonic dragon or thunder dragon