TransferPortl

TransferPortl combines transfer portal history since 2022, player statistics, recruiting rankings, and coaching moves to estimate which players are likely to enter the transfer portal and where portal players are likely to land. It also estimates market values: a player's production, level of play, honors, recruiting rating, and draft stock rank him at his position, and that rank is priced with the College Sports Commission's 2026 reports on school revenue-share payments and cleared third-party NIL deals. The models retrain as each weekly data build adds new results.

The Transfer Vulnerability Score (TVS) is a relative risk score from 0 to 100 that ranks how likely a rostered player is to enter the next transfer portal window. It is not a probability. A gradient-boosted model, retrained every week on the three most recent completed seasons of rosters matched to the portal cycle that followed, produces the score. Key factors include his share of his position room's production, years in the program, distance from home, recruiting rating, and his team's recent portal history. Each input uses only what was known at the time. TVS is not shown for players who already entered the portal.

Player statistics, rosters, recruiting rankings, and transfer portal records come from the College Football Data API, official school roster and box score pages, ESPN, and 247Sports. ESPN also supplies player bios and headshots. Coaching staffs come from official team athletics websites.

Every prediction and valuation on this site is a statistical estimate. Market values are not appraisals or reported contracts, and they are not financial advice. Transfer predictions do not use insider information. Player data updates on a fixed schedule and can lag real-time news or contain errors.

Ray Carpenter builds and maintains TransferPortl. He also publishes college football analysis through The Spade. TransferPortl labels model estimates, shows data update times, and separates recorded transfers from predicted outcomes.

TransferPortl shows data refresh times on the site. Submit a correction with a public source through the data edit request form. TransferPortl reviews the source before it changes a player, team, or coach record.