I have attached some software made by another freelancer which is a calculator, that links to betfair API
The software already connect to betfair api - but you'll have to check this to see if everything is in order.
The software already brings up matches through betfair API, you just click get match data, the time range you want.. then it brings up all matches in that timeframe.
YOUR JOB - I want to the matches odds to populate the calculator. When I click a game, the odds of that game will display on the calculator and update in real time through api calls.
If you need betfair and visual basic, this will be easy.