VIMC2025

Vietnam International Mathematics Competition 2025 (VIMC2025) 

Important Dates (in 2025)

• Call for participants January

• Preliminary screening February - May

• Charlotte Math Camp July 6th - 10th

• VIMC2025 August 14th - 19th

Team Roster (video highlights)

• USA Country Coordinator: Harold Reiter (UNC Charlotte)

• Team Leader: Tao Hong (UNC Charlotte) 

• USA3A Team: Jason Lee, Leo Hong, Atticus Stewart, Kyle Liao

• USA3B Team: Brandon Ni, Daniel Sun, William Wu, Isaac Chan-Osborn

• USA3C Team: Louis Qiu, Olivia Huang, Charlie Wang, Arjun Raman

• USA2A Team: Derek Wang,  Steve Cui, Andrew Mao, Audrey Wu

(Team captains are marked in bold.)

Sponsors

• Burroughs Wellcome Fund

• Telra Institute

Math Camp at Charlotte (video highlights)

7/6

• 6:00pm Reception dinner at Lanzhou Hand-Pulled Noodles

7/7

• 9:00am Tao Hong (UNC Charlotte) - Pathways for mathletes

• 9:30am Practice sessions 1 & 2

• 11:30am Team photos

• 12:00am Lunch

• 1:00pm Practice session 3

• 2:30pm Aaron Wang (MOPpers lecture series) - Related topics in curves: Cayley-Bacharach, Elliptic curves, group law and conics

• 3:45pm Maria Chan (Argonne National Laboratory) - From quantum physics and AI to renewable energy materials

• 6:30pm Swimming pool party

7/8

• 9:20am US National Whitewater Center

7/9

• 9:20am Team selection test

• 12:30pm Lunch

• 1:30pm Test review by Leo Hong, Jason Lee, and Atticus Stewart

• 3:30pm Yimei Li (St. Jude Children's Research Hospital) - How math helps kids with cancer

• 4:45pm Tao Hong (UNC Charlotte) - Team selection results announcement

7/10

• 9:20am Mock test (team round)

• 11:00pm Leo Hong (MOPpers lecture series)

• 12:00pm Lunch

• 1:00pm Jason Lee (MOPpers lecture series) - My adventures in FIRST Robotics: what else you can do with your math skills

• 2:00pm Tingting Wang (Georgetown University) - From genes to behavior: application of mathematics in neuroscience

• 3:15pm Simon Hsiang (UNC Charlotte) - Problems in systems engineering

• 4:30pm Harold Reiter (UNC Charlotte)

• 5:30pm Farewell dinner at Rice Blossom

• 8:00pm Card night

Awards

Key Stage 3

• USA3B 2nd Runner Up Team 

• Isaac Chan-Osborn Gold

• Leo Hong Gold

• Jason Lee Gold

• William Wu Gold

• Arjun Raman Gold

• Brandon Ni Silver

• Atticus Stewart Silver

• Kyle Liao Silver

• Charlie Wang Silver

• Daniel Sun Bronze

• Louis Qiu Bronze

• Olivia Huang Merit

Key Stage 2

• USA2A 1st Runner Up Team

• Steve Cui Gold

• Andrew Mao Gold

• Audrey Wu Gold

• Derek Wang Silver

Summary

500 students from 29 countries participated in the International Mathematics Competition 2025. Two UNC Charlotte Professors Dr. Tao Hong and Dr. Harold Reiter led Team USA to eight gold medals, five silver medals, and two bronze medals.  

The competition was hosted by Vietnam from August 14th to 19th, 2025, open to students from upper primary level (Key-Stage II, 6th grade and under) to lower secondary level (Key-Stage III, 9th grade and under). Team USA was made of 16 students coming from North Carolina (3), Washington (2), Alaska (1), British Columbia (1), California (2), Illinois (2), Indiana (1), Massachusetts (1), Maryland (1), Tennesee (1), and Texas (1). Four of them participated in Key-Stage II, while the other twelve in Key-Stage III.

After the COVID-19 pandemic, this is the first time that USA participates in person at the International Mathematics Competition. Individually, several USA students ranked at top 10 of their divisions. Among 266 contestants in Key-Stage III, Isaac Chan-Osborn is one of the only two perfect scores tied at 1st place, followed by Leo Hong tied at 3rd place; Jason Lee tied at 7th place. Among 234 contestants in Key-Stage II, Steve Cui and Andrew Mao tied at 5th place.

Based upon the scores on AMC10/12, AIME, and the students' performance on MathCounts Nationals, 16 students were invited to the team training camp at Charlotte from July 6th to 10th, 2025. The camp included 4 research seminars, 3 student-led presentations (MOPpers lecture series), 6 practice sessions, and 1 field trip. Telra Institute provided the venue free of charge. The cost of the camp was covered through a grant from the Burroughs Wellcome Fund.