17 December 2017 Chromaweb
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Betfair API Solutions Directory
If you're seriously into arbing / trading on Exchange markets, you must read about  mt3, our one-click Graphical Interface to the Betfair API    
Or perhaps you have a winning Strategy, but you need a Custom Bot to implement it?
See if BotBuilder can help.

Arbitrage Stakes Calculator
No Flash? No Problem. Use our PopUp

Sometimes you may not wish to precisely Equalise your Profits ... for example, if you're 90% certain the Horse will win or 90% sure your team will lose!

In that case you can use our Slider to calculate how much you should Stake to, at least, cover your Liabilty, while risking an appropriate percentage of your potential Profit::

  1. Enter your Original Stake, the Back Odds and the Lay Odds.
  2. Choose whether you have already Backed and now wish to Lay or already Layed and now wish to Back.
  3. Click on and move the Slider's pointer.
  4. The output shows what your Stake should be to either cover only your Liability, or your Liability and all of your Potential Profit, or any percentage in between.
You may find it more convenient to view the Web versions of our calculators in separate popups by clicking:
Downloads (free!) To download the Flash versions (.swf), RightClick on the link and choose "Save Link As ..." (Firefox) or "Save Target As (Internet Explorer).
The .zip and .hqx files are zipped Flash Projecter versions that can run on your pc / Mac without the need for a Flash / Shockwave plugin
Flash (.swf) Windows Standalone Mac Mac Standalone
Calculator: arb.swf (38k) arb.zip (470k) arb.hqx(1.5Mb)
Slider: slider.swf (12k) slider.zip(442k) slider.hqx(1.4M)