Best Sports Betting System Builders & Backtesting Tools (2026)
Quick answer
KillerSports is the long-running query tool for people comfortable writing queries. BettingPros has systems and custom models on its Elite plan. The Betting Insider has a point-and-click builder: pick filters, see the record and ROI, save the system and see which of today’s games match. Action Network’s Bet Labs is the veteran filter-based builder, at about $200 a month.
What a betting system is
A system is a set of conditions, such as "home underdogs after a loss, total under 45", tested against past games to see how that bet has done. A good builder shows the record and return, lets you save the system, and tells you when a new game matches.
Be careful with small samples. With enough filters you can find a great-looking record that is pure chance. Fewer, sensible filters and more games beat a perfect record over 30 games.
System builders compared
| Tool | How you build | Today’s matches | Sports | Cost |
|---|---|---|---|---|
| The Betting Insider | Point-and-click filters by bet type | Yes, plus community systems | NFL, NBA, MLB, NHL, college football, college basketball | Premium $9.99/week or $29.99/month; Pro adds unlimited saved builds |
| KillerSports | SDQL query language | GameDay Trends and alerts (paid tiers) | NFL, NBA, MLB, NHL, college, WNBA, tennis | Free; $19, $39 or $79/month |
| BettingPros | Systems and custom models | Yes | NFL, NBA, MLB, NHL | Elite $49.99/month (iOS) |
| Bet Labs (Action Network) | 400+ filters | Email and text alerts | NFL, NBA, MLB, NHL, college, WNBA, CFL | About $200/month |
Prices and features were checked on each company's own site or App Store listing on November 8, 2026. They change often, so confirm before you subscribe.
We make The Betting Insider, so we are not neutral. We included it where it fits and said plainly where another tool does a job better.
Try the system builder →Build a system, see its record, and see today’s matches.How The Betting Insider builder works
Choose a sport and bet type (spreads, totals, moneylines, first five innings, NRFI, anytime touchdown and more), add filters, and the builder shows the record, hit rate and ROI over past seasons and the last 30 days. Save it to your collection and the app shows which games today match it. You can also browse systems other users have shared.
Frequently asked questions
What is the best software to backtest a sports betting strategy?
Bet Labs is the veteran with 400+ filters, at about $200 a month. KillerSports is the query-language option. The Betting Insider is point-and-click with today’s matches, included in Premium. BettingPros has systems on its Elite plan.
Do betting systems work?
Some trends hold up and many are noise. Use simple filters, large samples and check recent results before trusting a record.
How much does Bet Labs cost?
Bet Labs, Action Network’s system builder, runs about $200 a month. KillerSports starts free with paid tiers from $19 a month, and The Betting Insider builder is included in Insider Premium at $29.99 a month.
For information and entertainment. No betting signal or strategy guarantees a win. Bet responsibly, and only where it is legal for you.