As a Redshirt Freshman (2023-24):
- Appeared in five games off the bench
- Went 2-for-2 from the field, scoring against Eastern Washington (Nov. 17) and a 3-pointer against San Diego (Dec. 3)
As a Freshman (2022-23):
- Redshirted the 2022-23 season
Before Stanford
- Consensus four-star recruit from 247Sports (#67) and Rivals (#95), while 247 ranked him as the No. 19 small forward in the country
- ESPN four-star recruit
- Two-time participant at prestigious Pangos All-American camp
- Played junior and senior seasons at Southern California Academy, where he averaged 14.0 points and 9.0 rebounds per game while shooting 41% from 3-poing range
- Named Bay Counties-East League MVP as a sophomore at St. Joseph’s Notre Dame in Alameda, averaging 15.0 points, 8.0 rebounds, 5.0 assists and 3.0 steals per game
- Selected Stanford over USC, Arizona, Arizona State, Harvard, Cal and Washington
Quotable: "Jaylen is someone we believe has tremendous upside and is a great fit for our program. He is already an elite perimeter defender, with great length, quickness, and athleticism. He has made huge strides offensively as of late, proving he can score from the 3-point line, but also put the ball on the floor and score on the interior. His ceiling is sky high, and we are so excited for his future on the Farm" – Jerod Haase