ParlayCalculator.com 

Established: August 2006

URL: https://www.parlaycalculator.com/

The Parlay Calculator indicates how much money sports bettors could win if they placed a bet on a certain number of games. Furthermore, players who visit the website can rank their favorite sportsbook and we display the results to show the betting public who are visitors trust with their money.

First Version; https://web.archive.org/web/20060804082919/http://parlaycalculator.com/