#37

Trestin Castro

S · Redshirt Freshman

6'0" · 190 lbs · Defense

Also wearing #37: Zachary Nandlal (P)

Background

Hometown: Upland, Calif.
High school: Upland HS

Recruiting

Rating: 4-star (0.9166 247 composite)
National rank: #237
Class: 2025
Source: 247 composite

2026 season

No 2026 stats recorded yet.

Season by season

2026tap to read

Castro will compete for playing time as a redshirt freshman safety in 2026.

2025tap to read

Castro, who enrolled at USC in the spring of 2025 after graduating a semester early from high school, saw action in 2 games (Missouri State and Georgia Southern) at cornerback as a true freshman in 2025 and recorded 1 tackle versus Georgia Southern. HIGH SCHOOL: Castro, a four-star recruit, was ranked as the No. 178 player in the nation by On3 and No. 208 by 247Sports. He was rated as the No. 14 player in the state of California by On3, No. 19 by 247Sports, No. 24 by ESPN and No. 28 by Rivals. He was touted as the No. 20 cornerback in the country by On3, No. 25 by 247Sports, No. 28 by ESPN and No. 31 by Rivals. He was ranked nationally 196 th on the On300 List, No. 206 on the Top247 List and No. 260 on the ESPN 300 List. Castro was selected as a

2024tap to read

in Los Angeles where he was named On3 MVP: . As a junior in 2023, Castro was a two-way playmaker with 25 receptions for 472 yards (18.9 avg.) and 7 TDs. On defense, he recorded 36 tackles, including 2 for loss, 12 PBUs, 4 INTs, and 1 fumble recovery. On special teams, he recorded 1 kickoff return for 28 yards. After Upland won the 2023 Baseline League Championship, he was named the

2023tap to read

in Los Angeles. As a sophomore in 2022, Castro had a breakout campaign tallying 58 tackles, including 1 for loss (with 1 sack), 7 INTs, 6 PBUs and 2 fumble recoveries. He was selected to the

2022tap to read

. Castro also participated in track, competing the 100, 200, 400 and high jump. PERSONAL: He is majoring in Communication at USC.

Official bio

Read full bio

2026: Castro will compete for playing time as a redshirt freshman safety in 2026.

2025: Castro, who enrolled at USC in the spring of 2025 after graduating a semester early from high school, saw action in 2 games (Missouri State and Georgia Southern) at cornerback as a true freshman in 2025 and recorded 1 tackle versus Georgia Southern.

HIGH SCHOOL: Castro, a four-star recruit, was ranked as the No. 178 player in the nation by On3 and No. 208 by 247Sports. He was rated as the No. 14 player in the state of California by On3, No. 19 by 247Sports, No. 24 by ESPN and No. 28 by Rivals. He was touted as the No. 20 cornerback in the country by On3, No. 25 by 247Sports, No. 28 by ESPN and No. 31 by Rivals. He was ranked nationally 196 th on the On300 List, No. 206 on the Top247 List and No. 260 on the ESPN 300 List. Castro was selected as a

2025 Polynesian Bowl All-Star: .

After being slowed by a minor injury in 2024, Castro recorded 25 tackles, including 4 for loss (with 1 sack), 2 INTs returned for 25 yards (12.5 avg.) and 4 PBUs. A two-way player, he also tallied 17 receptions for 257 yards (15.1 avg.) and 2 TDs. He was ranked as the No. 9 defensive back in the CIF-SS per Sports Illustrated and was named a

2024 Rams High School All-Star: . Prior to the season, he was named to the

2024 Cal-Hi Sports Preseason All-State First Team: . He was invited to compete at the

2024 Under Armour Next Camp: in Los Angeles where he was named

On3 MVP: .

As a junior in 2023, Castro was a two-way playmaker with 25 receptions for 472 yards (18.9 avg.) and 7 TDs. On defense, he recorded 36 tackles, including 2 for loss, 12 PBUs, 4 INTs, and 1 fumble recovery. On special teams, he recorded 1 kickoff return for 28 yards. After Upland won the 2023 Baseline League Championship, he was named the

2023 All-Baseline League Defensive MVP: and earned placement on the

2023 All-CIF Division 2 Team: and the

2023 All-Inland Football First Team: . He was invited to the

2023 Premium Invitational: and the

2023 Under Armour Next Camp: in Los Angeles.

As a sophomore in 2022, Castro had a breakout campaign tallying 58 tackles, including 1 for loss (with 1 sack), 7 INTs, 6 PBUs and 2 fumble recoveries. He was selected to the

2022 Cal-Hi Sports All-State Second Team: .

Castro also participated in track, competing the 100, 200, 400 and high jump.

PERSONAL: He is majoring in Communication at USC.

Official bio on usctrojans.com →