Beat Ryo in Speed Challenge

Defeated him in the first Speed Challenge.Then defeated him in the Wheelie Competition.Though I was doing Wheelie first time & it was for the winning cause
Then I defeated him in the Top Speed Challenge.
Next I defeated him in the Drag Race
Now again the Speed Challenge comes.But I cant beat him.It seems to me that its impossible(I know its not)
I used different strategies.
First I drived all the way,then in the end I used NOS.But i didnt win
Then next time I used NOS at the begining but it didnt do any good to me.
Last time i used NOS at the middle say 50% still then I couldnt beat him.
Totaled many times,pls do help me how to beat him
Am i racing for the Street King Title?
Coz after Racing & Dominating Drift King Ryo came infront of my car & this Race Day started against him only
I am dieing to finish this game before UC releases.
Pls help me
Answer #1
Nobody there to help me?