KJPI Analytics

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. Each of those gets scored against everyone else at the same position.

How the score is built

Each component is standardized on a scale of 0-100, and the KJPI is a weighted blend of the five.

Every player page breaks out all five, so you can see why someone rates where they do instead of just taking our word for the composite.

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's no fixed threshold, it's relative to the slate. It's built for comparing players at the same position and a similar salary, which is exactly what the default sort on each slate does.