Career Accolades
- All-American (2021)
- Elite 90 Award winner (2022)
- MPSF Women's Fencer of the Year (2022)
- NCAA West Regional foil champion (2022)
- All-West Region first team (2022)
- MPSF foil champion (2022)
- All-MPSF first team (2022)
- All-MPSF second team (2023)
- Two-time MPSF All-Academic (2022, 2023)
- Two-time Pac-12 Winter Academic Honor Roll (2022, 2023)
- Two-time MPSF team champions (2022, 2023)
As a Junior (2022-23) • MPSF Champions
- All-MPSF second team
- Reached the MPSF semifinals in foil
- Went 7-3 at the NCAA West Regionals in foil, placing fourth
- Had a season overall record of 26-18 (.591)
- Pac-12 Winter Academic Honor Roll
- MPSF All-Academic
As a Sophomore (2021-22) • MPSF Champions
- Elite 90 Award winner
- 18th in foil at NCAA Championships
- MPSF Women's Fencer of the Year
- NCAA West Regional foil champion
- All-West Region first team
- MPSF foil champion
- All-MPSF first team
- MPSF All-Academic
- Pac-12 Winter Academic Honor Roll
- MPSF Women's Fencer of the Week (Feb. 8)
- Compiled a 55-30 (.647) overall record
- Went 37-10 in the regular season and 18-17 in the postseason
- Won regionals with an 8-2 record
- Won both bouts at MPSF Championships
- 8-15 at the NCAA Championships to place 18th foil
As a Freshman (2021)
- Earned second-team All-America honors in foil
- Placed sixth at the National Collegiate Championships with a 13-7 record
- Top women's foil placer at the Western Invitational, going a team-best 15-1
- Had a season bout record of 28-8 (.778)
Prior to Stanford
- Class of '20 from Northern Highlands Regional High School in Allendale, N.J.
- Competed in club for the Gukovskiy Fencing Academy.
- Fifth in Division, 14th in junior, and gold in senior team at the 2020 January North American Cup.
- Ninth in junior at the 2019 Summer Nationals, and ninth at the 2019 Division 1 Championships.
- Gold in junior team at the 2020 Junior Olympics.
- In 2018 on Cadet World Cup circuit, was sixth in Austria and 11th in U.K. as an individual, and won team gold in France.
- Took individual bronze in cadet at the 2018 Pan Am Games.
- U.S. Fencing first-team All-American and first-team high school All-American in 2017.
- Northern Highlands women's foil A-strip and squad leader.
- 2019 State squad champion.
- First-team All-Bergen Passaic Fencing League in 2019 in high school.
- Undefeated individual record for Northern Highlands High in 2018.
- First-team All-New Jersey Interscholastic Fencing Association in 2017.
- State silver medalist and district champion in 2017 for Northern Highlands.
Personal
- Parents are Henry and Lisa Koo.
- Has a sister, Rachel, and brother, Jason.
- Father played football at Columbia as a freshman.
- National Honor Society.