Whether you’re targeting UK universities, US colleges, or applying to multiple countries simultaneously, the average IB score, proportion of high achievers, and number of full-score candidates are core benchmarks for school selection.This year, several international schools across Thailand delivered outstanding overall IB performance!
1️⃣ NIST International School
Average IBDP score: 36, above the global average
Diploma pass rate: 97%
Bilingual Diploma attainment rate: 62%
27% of students scored 40+ points
3 students achieved the perfect 45 full score
2️⃣ St. Andrews International School (Sukhumvit 107)
Average IBDP score: 36.3
100% pass rate for both IBDP and IBCP diplomas
One student scored a full 45 points, another earned 44 points
The 45-point student will pursue Mechanical Engineering at the University of Toronto, Canada
The 44-point student will read Computer Science at the University of Oxford, UK
3️⃣ Regents International School Pattaya
Average IBDP score: 34, far exceeding the 2025 global IB average of 30
One student attained a full 45 points
4️⃣ Bangkok Patana School
Total 137 IBDP candidates this cohort
Average IBDP score: 36; diploma pass rate: 98.5%
21% of students scored 40+ points
One full 45-point scorer
100% IBCP pass rate; 90% of students achieved BTEC Distinction grades
5️⃣ KIS International School Bangkok
Average IBDP score: 33; 100% diploma pass rate
100% Bilingual Diploma award rate
100% of students scored 6 or 7 (top grades) in HL Economics
100% pass rates for Theory of Knowledge (TOK) and Extended Essay (EE)
IBCP has maintained a 100% pass rate for two consecutive years
Two students scored 43 points
50 university offers from the world’s top 100 institutions
97% of students gained admission to their first-choice university
6️⃣ Concordian International School
Average IBDP score: 37
IB Diploma pass rate: 95%
33% of students scored 40+ points
One full 45-point student
Only a portion of Thailand’s international schools have released their 2026 IB results so far; more score updates are coming soon‼Follow me to get the latest and most complete IB data first!
