Boris Chen [2021] Official

That insight was revolutionary. Chen realized that traditional numerical rankings create a false sense of precision. The gap between the 5th-ranked wide receiver and the 8th-ranked one might be tiny (a bad route, a dropped pass), while the gap between the 8th and the 15th might be enormous.

The internet exploded. By 2015, the "Boris Chen tiers" were no longer a secret. Reddit’s r/fantasyfootball worshipped him as a demigod. Twitter analysts debated his methodology. Even casual players began screenshotting his grids and sharing them in group chats. boris chen

For nearly a decade, the answer for savvy managers has come from an unlikely source—not a former NFL coach, nor a loud TV pundit, but a quiet, unassuming data scientist named That insight was revolutionary

So, he borrowed a technique from machine learning: The Algorithm Behind the Art Chen began scraping consensus rankings from the industry’s most accurate experts (sources like FantasyPros, ESPN, and Rotoworld). Instead of averaging their numbers, he applied a clustering algorithm—similar to how Netflix groups similar movies or how biologists classify species—to group players who were statistically indistinguishable from one another. The internet exploded

But the raw data was ugly. Chen, who moonlights as a design enthusiast (he has cited Piet Mondrian’s grid-based abstract art as an influence), decided to publish the results on a simple GitHub page. He used a clean, color-coded CSS grid. Red for Tier 1. Orange for Tier 2. Yellow for Tier 3.

If you’ve ever Googled “fantasy football rankings” on a Wednesday morning, you’ve seen his work. A cascading wall of colored rectangles—red for "must-start," blue for "flex," green for "deep sleepers"—organized not by simple point projections, but by tiers . Chen’s visualizations have become the Rosetta Stone of fantasy football, and his story is a masterclass in how one person can use design and data to deconstruct an entire industry’s anxiety. Chen, a New Jersey-based technologist with a background in computational biology and web development, never set out to be a fantasy guru. In the early 2010s, he was just another obsessive manager frustrated by the status quo.