Webapp with GPS tracking through geolocation with Google Maps API -- 2

Job ID: 31346910

Budget: $70 – $80 USD

We have a webapp (lap timer with GPS trasking) to which we want to add functions and correct any current one.
See attached document to see the current webapp and more details about the requirements:
I also attach mockups to get an idea.

Please, don't bid if you're not agree with price. Thank you
Related categories: PHP JavaScript Google Maps API