How the KJPI works
The KJ Predictive Index (KJPI), named after its creators, is an aggregated measurement for daily fantasy sports. It's one number per player, per site, built from everything that actually moves a slate.
A box score only tells you what already happened. KJPI looks at what's in front of a player instead: the betting line, the defense they're facing, how much work they're getting, and what they cost.
Questions
Is KJPI Analytics free?
Yes. Every projection on the site is free and there is no account to create. There is an optional subscription inside the iOS app that supports development, but nothing on the web is gated.
Which leagues and sites are covered?
NBA and NFL, for both FanDuel and DraftKings. Fantasy point totals are computed under each site's own scoring rules, so the same player has a different projection on each.
How often do the projections update?
Daily through each season. The pipeline pulls results, injuries, Vegas lines and salaries, then recomputes every rating before the slate locks.
What is a good KJPI?
There is no fixed threshold; it is relative to the slate. Slates open sorted by KJPI across all positions. Use the position filter to compare players at the same position, and read Val (points per $1,000) alongside it.