Isaac Guerendo Bio
Isaac Guerendo is an American professional football running back and kickoff returner currently playing for the San Francisco 49ers in the National Football League (NFL). He played college football at the University of Wisconsin and the University of Louisville before being drafted in 2024.
Early Life and Background
Isaac Guerendo was born on June 28, 2000, in Clayton, Indiana. He attended Avon High School in Avon, Indiana, where he showed early promise as a wide receiver. During his junior year, he recorded 19 receptions for 596 yards and six touchdowns. His senior season was a breakout year, with 54 receptions for 1,258 yards and 16 touchdowns, earning him the Indianapolis Star’s Mister Football award for wide receivers.
Guerendo comes from a family with athletic roots. His father, Mario Guerendo, emigrated from the Central African Republic, and his mother, Jennifer Guerendo, competed in track and field during high school. This athletic background helped shape his early development in football.
Path to American Football
After high school, Guerendo committed to play college football at the University of Wisconsin. He began his collegiate career with the Wisconsin Badgers in 2019, gradually developing his skills as a running back and kickoff returner. His early college years included limited playing time but valuable experience in a competitive program.
Seeking greater opportunities, Guerendo transferred to the University of Louisville for his final season of eligibility in 2023. This move allowed him to showcase his abilities more prominently and prepare for a professional career.
Isaac Guerendo Career
Early Career (2019–2022)
Isaac Guerendo’s college career began at Wisconsin, where he played from 2019 through 2022. In his freshman year, he had minimal touches but showed potential with a kickoff return of 49 yards. The 2020 season was shortened due to COVID-19, but he still contributed with 36 rushing yards on 11 carries.
In 2021, Guerendo recorded his first career touchdown on an 82-yard run against Eastern Michigan. He finished that season with 160 rushing yards and one touchdown on 23 carries. The 2022 season was his most productive at Wisconsin, rushing for 385 yards and five touchdowns on 64 carries, along with 17 receptions for 115 yards and a touchdown. He graduated in December 2022 with a bachelor’s degree in personal finance.
Louisville Cardinals Breakthrough (2023)
Transferring to Louisville for the 2023 season, Guerendo quickly became a key contributor. In his home debut, he rushed for 63 yards and a touchdown while also catching four passes for 47 yards. His season peaked in Week 10 with a career performance of 146 rushing yards and three touchdowns against Virginia Tech.
Guerendo capped his college career with a standout performance in the 2023 Holiday Bowl, rushing for a career-high 161 yards and three touchdowns. Despite his efforts, Louisville fell to USC 42–28. He finished the season with 810 rushing yards and 11 touchdowns on 132 carries, plus 22 receptions for 234 yards. Following the season, he declared for the 2024 NFL Draft.
San Francisco 49ers Era (2024–Present)
Isaac Guerendo was selected by the San Francisco 49ers in the fourth round, 129th overall, of the 2024 NFL Draft. He signed a four-year contract with the team in May 2024. Early in his rookie season, Guerendo gained playing time due to injuries to other running backs on the roster.
He made his NFL debut in Week 2 during a loss to the Minnesota Vikings. Guerendo scored his first NFL touchdown on a four-yard rush in Week 8 against the Dallas Cowboys, also recording 102 scrimmage yards in that game. His performance demonstrated his potential as a valuable asset to the 49ers’ offense.
Playing Style and Strengths
Isaac Guerendo is known for his versatility as both a running back and kickoff returner. His speed and agility allow him to break long runs, while his receiving skills add a dynamic element to the offense. He is effective in open space and shows good vision and balance when navigating defenders.
Notable Events and Milestones
Guerendo’s first NFL touchdown and 100-yard scrimmage game in 2024 stand out as early career milestones. His college career included multiple multi-touchdown games and a strong bowl game performance, highlighting his ability to perform in high-pressure situations.
Isaac Guerendo Career Wins
While individual wins are not typically credited to running backs in football, Guerendo’s contributions have been instrumental in team successes at the collegiate level and early professional appearances. His performances have helped his teams compete effectively in key games.
College Highlights
Guerendo’s college career featured several standout moments, including an 82-yard touchdown run at Wisconsin and multiple three-touchdown games at Louisville. His consistent improvement culminated in a strong final season that boosted his draft stock.
Professional Highlights
In his rookie NFL season, Guerendo quickly made an impact by scoring his first touchdown and contributing significant yardage in limited playing time. These early achievements suggest a promising professional trajectory.
Isaac Guerendo Family
Family Background and Athletic Lineage
Isaac Guerendo’s father, Mario Guerendo, emigrated from the Central African Republic, bringing a diverse cultural background. His mother, Jennifer Guerendo, was an athlete in track and field during her youth, providing a foundation of athleticism in the family.
Personal Life
Isaac Guerendo is in a relationship with Claire Stone, a YouTuber and fitness model, since 2025. This relationship is publicly known and reflects his life off the field.
2025 Season Performance
Looking ahead to the 2025 NFL season, Isaac Guerendo is expected to build on his rookie year experience with the San Francisco 49ers. With the team managing injuries and roster changes, Guerendo has opportunities to increase his role in the offense. His versatility as a runner and receiver will be valuable assets as the 49ers aim for playoff contention.
Team dynamics and coaching strategies will influence his usage, but his early performances indicate readiness to contribute consistently. The 2025 season could be pivotal in establishing Guerendo as a key player in the NFL.