Sources & method
InformStats publishes statistics calculated from publicly available match data. Below are the sources we use and how the numbers are calculated.
Data sources
| Sport | Data | Source |
|---|---|---|
| Tennis | Match results and serve / return statistics (ATP) | TennisMyLife – TML Database Based on Jeff Sackmann's tennis_atp data (github.com/JeffSackmann/tennis_atp), licensed CC BY-NC-SA 4.0. |
| Darts | Match results, 3-dart averages and checkout % | Darts Orakel |
| Darts | Fixtures | PDC and MODUS Super Series schedules |
| Hockey | Game results and schedules | NHL public game data (api-web.nhle.com) |
| Basketball | Game results and schedules | Public NBA game results |
| American Football | Game results and schedules | nflverse – nfldata |
All data belongs to its respective owners. Player, team, league and tournament names are used for identification only and may be trademarks of their owners. InformStats is not affiliated with or endorsed by the ATP, PDC, NHL, NBA, NFL or any data provider.
Method
Last 3 vs previous 3. For every player and team we take the last 3 completed matches and compare them with the 3 matches before. Each stat is averaged over both blocks; the difference shows whether a player is improving or declining.
Form index. One number per match that sums up the performance. How it is calculated per sport:
- Tennis: Form index = serve and return points won, compared with the tour average (50 = average). Stats compared: Service points won, Return points won, Total points won, 1st serve in, 1st serve points won, 2nd serve points won, Break points saved, Break points converted, Aces per match, Double faults per match.
- Darts: Form index = 3-dart average. Stats compared: 3-dart average, Checkout, Legs won.
- Hockey: Form index = 50 + average margin of victory (50 = even). Stats compared: Goals scored per game, Goals allowed per game, Average margin, Wins.
- Basketball: Form index = 50 + average margin of victory (50 = even). Stats compared: Points scored per game, Points allowed per game, Average margin, Wins.
- American Football: Form index = 50 + average margin of victory (50 = even). Stats compared: Points scored per game, Points allowed per game, Average margin, Wins.
Time window. Only matches from the last 90 days are used, and pages older than 90 days are removed.
Updates. The site is updated once a day. Results may be delayed or contain errors from the source data.
Disclaimer. All statistics are for information and entertainment only. They are not predictions and not betting advice.
Found an error? Write to contact@informstats.com.
Last updated: 2026-11-13