
Isaac Guerendo is a fantasy football sleeper and value in 2024 fantasy football rookie drafts. Read the fantasy football outlook for the new 49ers running back.
DRAFT PICK: 4th Round (#129 Overall Pick)
TEAM: San Francisco 49ers
ROOKIE DRAFT ANALYSIS: If you didn't know much about former Wisconsin and Louisville running back Isaac Guerendo before the 2024 NFL Combine, you're not alone. But after his performance in Indianapolis, he entered the fantasy football radar -- and the 49ers draft board.
Be sure to check all of our fantasy football rankings for 2025:- 2025 fantasy football rankings (redraft)
- Dynasty fantasy football rankings
- 2025 NFL rookie fantasy football rankings
- Best ball fantasy football rankings
- Quarterback fantasy football rankings
- Running back fantasy football rankings
- Wide receiver fantasy football rankings
- Tight end fantasy football rankings
While bigger-name backs like Jaylen Wright and Trey Benson had excellent showings at the combine and made plenty of headlines, Guerendo was historically special. At 221 pounds, he led all running backs with a 4.33 forty-time and posted a 98-percentile burst score. Size-adjusted speed and athleticism are most important at the running back spot, and he'll now enter the Christian McCaffrey-led running back room in Kyle Shanahan's offense.
Given Guerendo's elite athletic profile, it's a mystery why it took him until his fifth college season to surpass 500 yards from scrimmage, but he was buried on the depth chart for four years at Wisconsin. In his one year with the Cardinals, he racked up 1,044 scrimmage yards and 11 total touchdowns. He averaged 6.1 yards per carry and a fantastic 10.6 yards per reception.
RD 4 | PK 129 - 49ers: Isaac Guerendo RB, Louisville
At 221 pounds, Guerendo reached the fastest top speed (24.08 mph), ran the fastest 40 yard dash (4.33), and jumped the highest vertical jump (41.5") among running backs at the 2024 Combine. He is one of five RBs since 2003 to… pic.twitter.com/d0iBqk1drs
— Next Gen Stats (@NextGenStats) April 27, 2024
McCaffrey is cemented as the 49ers lead back as long as he's healthy, but Guerendo will compete with Elijah Mitchell and Jordan Mason to be CMC's relief man and backup. Given his efficiency in his final year of college and off-the-charts measurables, even a small role in one of the NFL's best offensive attacks could yield at least minor fantasy production.
If McCaffrey misses a few starts with a minor injury, the 23-year-old rookie has a legit path to starting fantasy lineups in 12-team leagues. This is an early call considering Mitchell and Mason won't just concede their spots on the depth chart, but Guerendo is a key rookie to monitor this offseason. Target him in the third or fourth round of rookie drafts.
More NFL Draft Analysis

Top 10 College Quarterbacks Right Now: Early 2026 NFL Draft Projections and Prospect Rankings
The 2026 NFL Draft feels like it's a long way away, but with the way time works, it just keeps going and going! It will be here before you know it. After a 2025 class that did not feature many high-end quarterback prospects, 2026 is set to be much different. Maybe there aren't a ton […]

5 Fantasy Football Veterans to Avoid in Drafts: Overvalued Bust Candidates (2025)
It's a slow news time of the NFL offseason, making it an ideal time to prep for 2025 fantasy football drafts. We'll dive into fantasy football average draft position (ADP) to find which veterans you must avoid for 2025 redraft leagues. These are players who could provide you with a low upside at their current […]

4 Undervalued Fantasy Football Rookies: Must-Have Sleepers to Target in Drafts (2025)
There are always rookies who go under the radar in redraft formats. Most of these rookies aren't selected early in the NFL draft, but they emerge as solid fantasy options in Year 1. Last year, New York Giants running back Tyrone Tracy Jr. fell under that category. In 2023, Los Angeles Rams wide receiver Puka Nacua was a waiver […]

Top 5 Fantasy Football Veterans: Undervalued Sleepers to Target in Drafts (2025)
We're in the dog days of the NFL offseason, making it a great time to prep for 2025 fantasy football drafts. We'll take a look at fantasy football average draft position (ADP) to find which veterans are underpriced for 2025 redraft leagues. These are players who could provide you with significant profit at their current […]

Day 3 NFL Rookie Running Backs Who Could Start: 4 Fantasy Football Sleepers to Draft (2025)
The ever-coveted RB1 roles can lead to hugely productive fantasy seasons for running backs. There isn't much to explain here -- volume is nearly everything at the RB position. That's how unathletic players like Rams running back Kyren Williams can put up massive numbers -- they have huge, huge roles in their offenses. Obviously, the […]
Download Our Free News & Alerts Mobile App
Like what you see? Download our updated fantasy football app for iPhone and Android with 24x7 player news, injury alerts, rankings, starts/sits & more. All free!
