My Team:
Ivysaur (Grass/Poison, Middle)
Rapidash (Fire, Final)
Marowak (Ground, Final)

Round 1:
Vs
Ivysaur is a higher evolutionary stage (Middle Vs Basic), but there are no type advantages. Ivysaur wins.

Round 2:
Vs
Both are Final, but Rapidash has a type advantage (Fire Vs Steel). Rapidash wins.

Round 3:
Vs
Both are Final, but Marowak has a type advantage (Ground Vs Electric). Marowak wins.