The best chance to get this other than awesome skills is a little bit of luck.
I used a super head start which is about 1500kms, I also equipped a revive and a final blast.
Between the 1500-5000 is up to skill and luck, try and get as many tokens as you can but do not risk dying for them if they are in a tight area.
If you die hit revive if you have a way to go, or if you are pretty close to getting to 5000 then use your final blast then revive just as you slow down. If you have any tokens on your second death then by luck you'll get a small/big/atomic blast to get you that last few kms.
It will take a few tries just don't give up and if you find yourself getting frustrated take a break and come back.