I
nternational
M
athematical
O
lympiad
IMO 2025
IMO 2026
Hoàng Lê Thái
Year
Country
P1
P2
P3
P4
P5
P6
Total
Rank
Award
1998
Vietnam
7
1
2
6
7
0
23
104
Bronze medal
1999
Vietnam
7
7
3
7
7
7
38
4
Gold medal