fantasy sports calculators

Daily Fantasy Sports ROI Calculator

Calculate expected return on investment for DFS contests based on entry fees, field size, and win probability

About this calculator

The Daily Fantasy Sports ROI Calculator helps DFS players evaluate the profitability of contests before entering. By inputting entry fees, field size, and your estimated win probability, this tool calculates your expected return on investment percentage. This allows you to make data-driven decisions about which contests offer the best value and helps optimize your bankroll management strategy for long-term DFS success.

How to use

Enter the contest entry fee, total number of participants in the field, and your estimated probability of winning based on your research and strategy. The calculator will instantly compute your expected ROI percentage, showing whether the contest offers positive expected value for your investment.

Frequently asked questions

What's a good ROI for DFS contests?

Professional DFS players typically aim for 10-20% ROI over large sample sizes, though this varies by contest type and skill level.

How do I estimate my win probability?

Base win probability on historical performance, lineup strength, and contest difficulty. Conservative estimates help manage expectations and bankroll effectively.

Should I only play positive ROI contests?

Generally yes, but consider contest variance and your skill edge. Slightly negative ROI contests might be acceptable for learning purposes.