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RotoBaller's FLEX fantasy football rankings for Week 1 (2025). Set winning fantasy lineups with our Week 1 RB, WR, TE rankings for fantasy football leagues.
Whether you have already completed your preseason fantasy draft(s) are just want to take a quick look at the Week 1 NFL slate, we're here to help with our fantasy football FLEX rankings for Week 1. It's never fun to start the season with a loss, so use these rankings to set winning lineups.
In the FLEX rankings below, check out where key baller carriers and pass-catchers like Jayden Reed, DeMario Douglas, Luther Burden III, Tank Bigsby, Quinshon Judkins, Jordan Mason, and more stand for the opening slate of the new NFL season.
Our FLEX fantasy football rankings for Week 1 are assembled by Nick Mariano. In addition to our rankings, below you will find a summary of this week's important fantasy football injury news. There are always critical injuries to track, so check back until kickoff.
Be sure to check all of our fantasy football rankings for 2025:- 2025 fantasy football rankings
- Running back (RB) fantasy football rankings
- Wide receiver (WR) fantasy football rankings
- Tight end (TE) fantasy football rankings
- Quarterback (QB) fantasy football rankings
- FLEX fantasy football rankings
- Defense (D/ST) fantasy football rankings
- Kicker (K) fantasy football rankings
- Dynasty fantasy football rankings
Fantasy Football Flex News and Injuries
- Cam Skattebo Missing Team Drills, Being Managed by Giants
- Omarion Hampton Gets the Start, Flashes Promise
- Tahj Brooks the Favorite to Win RB2 Role in Cincinnati?
- Braelon Allen Dealing With Knee Soreness
- Jaydon Blue Continues to Impress
- Running Back Roles "Starting to be Defined" in Jacksonville
- Rachaad White Quicker and Lighter
- Rhamondre Stevenson Drops 10 Pounds
- Commanders Not Interested in Trading Terry McLaurin
- Tre Harris Quiet in Hall of Fame Game
- Isaac TeSlaa Leads Lions in Receiving Yards in Preseason Debut
- Michael Pittman Jr. Returns to Practice
- Andrei Iosivas "Dazzling" at Training Camp
- Tetairoa McMillan has been "Better Than Advertised"
- Luther Burden III Impressing in Bears Camp
- Diontae Johnson Competing for a Roster Spot in Cleveland?
- Jaylin Lane Getting Work with the First Team
- Jaylen Waddle Stepping Up for the Dolphins
- Colston Loveland has looked the Part
- Isaiah Likely Out a Few Weeks With Ankle Injury
- Tyler Warren Getting Rushing Work in Practice
- Darren Waller in "Tremendous Shape"
- Evan Engram to be a Significant Focal Point for the Offense
Week 1 Fantasy Football FLEX Rankings
Rankings are updated until kick-off. Be sure to bookmark our weekly PPR rankings, Half-PPR rankings, and Standard rankings.
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More Fantasy Football Analysis
Check out all of RotoBaller's fantasy football rankings. Staff rankings are updated regularly for all positions and include standard formats, PPR scoring, tiered rankings and dynasty leagues.
