Every player gets a durability score built from 25 seasons of data. Higher score, higher risk. That's the whole idea.
No account required. Pick a player - see the score.
Try 5 free picks — search any NFL player, get a real frailty report. No account, no card.
This is what you get after signing up. Live data, real players, updated weekly.
Position-aware frailty scores for every rostered skill player. Sort, search, and compare across the entire league.
In-depth breakdowns with injury history, workload analysis, position context, and actionable durability forecasts.
25 seasons of historical data powering the model. Weekly stat refreshes keep your edge sharp all season long.
By the time ESPN flashes that injury update, the prop has closed, the DFS lineup is locked, and your trade window is gone. You're reacting to news alongside the crowd instead of managing risk before it materializes.
Do your own autopsies. Use your own rankings, your own likes, your own lists. We want you to use our tools to make your decisions far better and more accurate — not replace your gut, sharpen it.
DFS cash games, prop betting, draft day, best ball, dynasty, futures, auction — same frailty score, different edge depending on your game.
Explore all 7 use cases →Our patent-pending algorithm scores every skill-position player on a 40–85 frailty scale. Higher score = higher injury risk. Built from workload, contact rate, age, injury history, and positional hazard data — not expert opinions or medical reports.
A logistic-regression and neural-network ensemble trained on five seasons of NFL notable-injury data (2022–2026). It scores every player across 20 features: position-specific hazard rates, cumulative workload (carries, targets, sacks, tackles), contact rate, negative-play frequency, YAC exposure, age, experience, and five recency-weighted injury-history variables.
The model never sees player names, team IDs, or outcome labels from the season it's predicting. Trained on 2024 labels, evaluated out-of-sample against the unseen 2025 injury set — 81% ROC-AUC, fully reproducible. We hold the complete 2024 notable-injury catalog and can model against any season on demand.
Go ask ChatGPT who's getting hurt this year. It'll refuse. That's why this exists.
We ran every notable 2025 NFL injury through the model pre-season and asked: was a same-position alternative available that INJSUR ranked as both safer and more productive?
Full honesty: Some injuries weren't avoidable via a safer same-position swap. A few low-production injuries were excluded from the meaningful threshold (below 50-PPR floor). 25 of 53 notable 2025 injuries didn't map to a fantasy roster (retired, free agents, defensive). Every number reproducible from the repo.
We fed every notable 2025 injury through INJSUR's pre-season model and asked a simple question: could you have seen it coming? In most cases, the answer was yes.
Pre-season frailty score placed Godwin in the top tier of injury risk. INJSUR flagged Jaxon Smith-Njigba (frailty: 80.0) as a safer, more productive alternative — +280.9 PPR gained. The model saw the durability gap before the season started.
Pre-season frailty placed Lamb in the high-risk tier among WR1s. INJSUR flagged George Pickens (frailty: 78.7) as a safer, more productive alternative — +89.0 PPR gained. The model caught the durability risk before anyone else.
Second-highest frailty among rostered QBs pre-season. INJSUR's alternative Matthew Stafford (frailty: 78.3) was 6.0 points safer and delivered +124.0 PPR more. The tradeoff was clear before anyone got hurt.
15 of 19 bettor-relevant 2025 injuries had a unique safer, more productive same-position alternative flagged by INJSUR. Total fantasy edge: +1,113 PPR across all swaps. See the full results →
Same features on both plans. $39 for the season, $99 once for lifetime access.
Full access for the entire 2026 NFL season — every team, every player, every week.
Less than one bet for the season.
Pay once — use every NFL season, including every algorithm update and new feature we ship.
Less than the change in your couch for a lifetime.
81% ROC-AUC on the unseen 2025 holdout. Full validation and competitive comparisons available.
See Accuracy & Validation →Lock in your subscription now and get every Pro feature as it ships — no upsells, no add-on fees. Here's what's on the roadmap.
More features, more value — all included. We're building this for the long haul.
The same frailty score powers every format — DFS, props, season-long, dynasty, best ball. See how the model works and how to apply it to the games you already play.
Go ask ChatGPT who's getting hurt this season. It'll refuse — or it'll give you a generic disclaimer about how it can't predict injuries. That's not a limitation of AI. It's a limitation of general-purpose AI. INJSUR was built for exactly one question: which players carry the most durability risk? And it answers it with statistical rigor, not guesswork.
Specialized models beat general ones every time. That's the whole idea.
"When I was a kid, my dad and I read the sports lines in USA Today every morning like other families read the funnies. I thought I had it all figured out. Then Week 1 of the '91 season, Randall Cunningham blows out his knee on the first play of the second quarter, and my whole year went down with him. I didn't lose because I picked wrong. I lost because nobody was even looking at who was most likely to get hurt. Thirty-five years later, I built the thing I wish I'd had that morning."
Built by an avid fantasy football player and bettor with 35 years in the game. Not a hedge fund, not a chatbot. Read the full story →
Coverage, validation, updates, pricing — everything you need to know, answered in one place.
Type any name, see the frailty score. No account, no card. When you're ready, lock in the full season for $39 — or pay $99 once for lifetime access.
Try 5 FreeINJSUR is a decision-support tool. Past backtest accuracy does not guarantee future results. Please play and wager within your limits.