Attached is a copy of a No-Vig/Series calculator that I wrote several years back. I figured it may be of use to some of you. It serves several purposes. When you open the program, the Single/Series selection is set to Single Game.
From here, you can calculate a fair value line (in American odds) from a winning percentage or you can calculate the no-vig winning percentage and no-vig American odds from a particular line offering.
If you select Series(Individual), you can calculate a series price from any 3, 5, or 7 game series by specifying the odds that the team wins each individual game.
You can enter your odds for a particular team for each individual game by either winning percentage or by a no-vig American odds line. This will calculate the percentage and American odds of that team winning the series and also give the percentage and American odds for that team to win the series in a certain game number of the series. If the series is already in progress, you can change the Wins/Losses to reflect the status of the series. The application will disable the appropriate textboxes where an outcome has been previously determined. You can obviously change the number of games in the series with the Best of: drop down box.
If you select Series, you can calculate the series prices based on the home/away winning percentage and home/away American odds (both no-vig and vigged).
This selection enables the Series Format group, where you can select the home/away format for the series. There is a Has HCA checkbox in the Win Probabilities groupbox. This specifies whether the probabilities that you are entering are for a team with home court advantage in the series or not. In this series selection, you can calculate your home/away odds by virtue of both a vigged line or a no-vig line (by selecting the Fair Value checkbox). Again, you can find the series probability of a series already in progress by changing the wins and losses in the series.
When you hit the Calculate Price button while calculating a series, the win percentage and the no-vig American odds of the series will appear in the results box with the win percentage and odds of the team winning the series in a specific game below it. The Permutations listbox will list all of the different combinations available for the team to win the series, each listing its individual percentage of occuring.
If anyone has any questions or issues with the tool, please let me know. I don't use it much any longer as I've automated the majority of my work. Hopefully, some of you will find it useful, however. Enjoy.