Madden Riordan
S · Freshman
5'10" · 180 lbs · Defense
Also wearing #31: Seth Zamora (WR)
Background
- Hometown
- Pasadena, Calif.
- High school
- Sierra Canyon HS
Recruiting
- Rating
- 3-star (0.8744 247 composite)
- National rank
- #921
- Class
- 2026
- Source
- 247 composite
2026 season
defensive
Season by season
2026tap to read
Riordan, who enrolled at USC in the spring of 2026 after graduating a semester early from high school, looks to compete for playing time at safety as a true freshman in 2026. HIGH SCHOOL: Riordan, a three-star recruit, was rated as the No. 48 player in the state of California by 247Sports, No. 51 by Rivals and No. 96 by ESPN. He was touted as the No. 53 safety in the country by 247Sports, No. 60 by Rivals and No. 91 by ESPN. As a senior in 2025, he recorded 32 tackles, including 3 for loss, 4 INTs returned for 23 yards and 7 PBUs. Offensively, he notched 1 carry for 21 yards and a TD, and 6 receptions for 62 yards (10.3). He was named to the
2025tap to read
. As a junior in 2024, he collected 43 tackles, including 2 for loss, 10 INTs returned for 153 yards and 1 TD and 14 PBUs. Offensively, he recorded 8 receptions for 68 yards (8.5 avg.). He earned
2024tap to read
. As a sophomore in 2023, he collected 29 tackles, 4 INTs returned for 40 yards, 11 PBUs and 3 forced fumbles. Offensively, he had 1 reception for 11 yards. He earned
2023tap to read
. As a freshman in 2022, he notched 55 tackles, 1 INTs and 4 PBUs. Academically, Riordan was on the honor roll and dean’s list every semester in high school.
Official bio
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2026: Riordan, who enrolled at USC in the spring of 2026 after graduating a semester early from high school, looks to compete for playing time at safety as a true freshman in 2026.
HIGH SCHOOL: Riordan, a three-star recruit, was rated as the No. 48 player in the state of California by 247Sports, No. 51 by Rivals and No. 96 by ESPN. He was touted as the No. 53 safety in the country by 247Sports, No. 60 by Rivals and No. 91 by ESPN.
As a senior in 2025, he recorded 32 tackles, including 3 for loss, 4 INTs returned for 23 yards and 7 PBUs. Offensively, he notched 1 carry for 21 yards and a TD, and 6 receptions for 62 yards (10.3). He was named to the
2025 MaxPreps All-California First Team: , the
All-CIF Division I Team: and was the
2025 All-Mission League MVP: . He was also a
2025 Team Captain: . Prior to the season, he was named a
2025 MaxPreps Preseason First Team All-American: and was selected to the
2025 Preseason All-LIF Southern Section Team: .
As a junior in 2024, he collected 43 tackles, including 2 for loss, 10 INTs returned for 153 yards and 1 TD and 14 PBUs. Offensively, he recorded 8 receptions for 68 yards (8.5 avg.). He earned
2024 MaxPreps Junior First Team All-American: and
2024 High School on SI All-America First Team: honors. He was also named to the
2024 Cal-Hi Sports All-State First Team: , the
2024 All-CIF Southern Section Team: , the
2024 Sporting News California All-State First Team: , the
2024 Southern California’s Elite Cannon List All-State Team: . He was named the
2024 All-Mission League MVP: , the
2024 Cal-Hi Sports Defensive Back of the Year: , the
2024 Daily News Defensive Player of the Year: and the
2024 LA Times Defensive Back of the Year: . He was also a
2024 Team Captain: . Prior to the season, he was named
a 2024 Preseason MaxPreps Junior Second Team All-American: .
As a sophomore in 2023, he collected 29 tackles, 4 INTs returned for 40 yards, 11 PBUs and 3 forced fumbles. Offensively, he had 1 reception for 11 yards. He earned
2023 MaxPreps Sophomore Second Team All-American: honors. He was also named to the
2023 Cal-Hi Sports All-State First Team: , the
2023 All-Mission League First Team: . He was a
2023 Rivals Camp Series Los Angeles invitee: .
As a freshman in 2022, he notched 55 tackles, 1 INTs and 4 PBUs.
Academically, Riordan was on the honor roll and dean’s list every semester in high school.