23rd ASEAN AGE GROUP CHESS CHAMPIONSHIP 2025 (U16 Open)
28 players participated in this 9-round tournament, held from 01 Jul 2025 to 11 Jul 2025 in George Town, Penang, Malaysia. 3 titled players from 5 federations. Top 10 Elo average was 2013, and top seed was Tran Ngoc Minh Duy (🇻🇳 VIE, FM, 2266).
Tran Ngoc Minh Duy (🇻🇳 VIE, FM, 2266) won with 6.5/9, ahead of Ha Thi Hai Nguyen (6.5) and Tran Bao Khang Phan (6.5). Duy shared the lead from round 7, winning on tie-break.
The biggest upset came in round 9: John Peter Allen Cabales (1870) beat Vuong Tung Lam Nguyen (CM, 2220), a +350-point gap.
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How it unfolded
Top 6 · 9 roundsTight race until R9; 3 players tied at 6.5/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
FM Tran Ngoc Minh Duy takes the sole lead (6.0/8).
3 players finish on 6.5/9. Duy takes the title on Buchholz Cut1 (46.5).
Ha Thi Hai Nguyen beat FM Tran Ngoc Minh Duy (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ha Thi Hai Nguyen | * | 1 | ½ | ½ |
| 2FMTran Ngoc Minh Duy | 0 | * | 1 | ½ |
| 3Tran Bao Khang Phan | ½ | 0 | * | ½ |
| 4CMRee Herng Shen | ½ | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Tran Ngoc Minh DuyFM | 2266 | VIE | +11N | =7B | +3N | +13B | =6N | −2B | +4N | +8B | =5N | 6.5 | 46.5 | 51.0 | 36.00 | 2139 | -36.9 |
| 2 | Nguyen, Ha Thi Hai | 1977 | VIE | +8N | =24B | =4N | +7B | =5B | +1N | =3B | =6N | +14B | 6.5 | 46.0 | 48.5 | 35.25 | 2097 | +59.7 |
| 3 | Phan, Tran Bao Khang | 2014 | VIE | +21B | +10N | −1B | +19N | +4B | =6B | =2N | =5N | +15B | 6.5 | 44.0 | 48.0 | 32.50 | 2080 | +40.8 |
| 4 | Cabales, John Peter Allen | 1870 | PHI | +23B | =5N | =2B | +9N | −3N | +12B | −1B | +17N | +6B | 6.0 | 45.5 | 48.5 | 29.25 | 2088 | +101.6 |
| 5 | Shen, Ree HerngCM | 2070 | MAS | +20N | =4B | =7N | +24B | =2N | +13B | =6N | =3B | =1B | 6.0 | 45.0 | 47.5 | 29.25 | 2093 | +10.9 |
| 6 | Nguyen, Vuong Tung LamCM | 2220 | VIE | +18B | =17N | +12B | +15N | =1B | =3N | =5B | =2B | −4N | 5.5 | 45.0 | 49.0 | 28.25 | 2031 | -68.4 |
| 7 | Nguyen Anh Huy | 1915 | VIE | +14B | =1N | =5B | −2N | +18B | =10N | +24B | =9N | =11B | 5.5 | 43.0 | 45.5 | 25.00 | 1950 | +18.6 |
| 8 | Nguyen Tien Dung | 1621 | VIE | −2B | +26N | =18B | −12N | +16B | +19N | +10B | −1N | +17B | 5.5 | 39.5 | 41.5 | 21.50 | 1839 | +80.4 |
| 9 | Lam, Duc Hai Nam | 1929 | VIE | +16N | =15B | =24N | −4B | −11N | +22B | +12N | =7B | +20N | 5.5 | 38.5 | 41.0 | 23.75 | 1812 | -44.8 |
| 10 | Cairel Adrin, Rumi Arjuna Malique | 1843 | MAS | +25N | −3B | −15N | +22B | +21N | =7B | −8N | =11B | +13N | 5.0 | 39.5 | 42.0 | 20.25 | 1772 | -27.2 |
| 11 | Loo, Kai Jue Bryan | 1712 | MAS | −1B | −14N | +25B | +23N | +9B | =18N | =17B | =10N | =7N | 5.0 | 38.0 | 40.5 | 20.25 | 1802 | +39.2 |
| 12 | Yong, Je Pin Ian | 1802 | MAS | +27N | =13B | −6N | +8B | =17B | −4N | −9B | +23N | +19B | 5.0 | 38.0 | 39.5 | 18.25 | 1820 | +6.4 |
| 13 | Doan, The Duc | 1961 | VIE | +19B | =12N | +17B | −1N | =15B | −5N | +18B | =14N | −10B | 4.5 | 39.5 | 43.5 | 19.00 | 1824 | -56.4 |
| 14 | Fua, Marc Justinn | 1553 | PHI | −7N | +11B | =16N | −18N | =20B | +21B | +15N | =13B | −2N | 4.5 | 38.5 | 42.5 | 20.00 | 1753 | +84.0 |
| 15 | Cheah, Austin Weibin | 1731 | MAS | +28B | =9N | +10B | −6B | =13N | =17N | −14B | +24N | −3N | 4.5 | 38.0 | 38.0 | 14.50 | 1851 | +43.6 |
| 16 | Noblijas, Art R. | 1565 | PHI | −9B | −18N | =14B | +25N | −8N | +26B | −20N | +28N | +24B | 4.5 | 30.5 | 30.5 | 9.25 | 1566 | -6.0 |
| 17 | Jiroajvanichakorn, Rathasart | 1906 | THA | +22N | =6B | −13N | +21B | =12N | =15B | =11N | −4B | −8N | 4.0 | 40.0 | 44.0 | 18.00 | 1743 | -68.4 |
| 18 | Do, Quang Minh | 1661 | VIE | −6N | +16B | =8N | +14B | −7N | =11B | −13N | =20B | =21N | 4.0 | 39.0 | 43.0 | 18.25 | 1701 | +11.4 |
| 19 | Ng Siang Zer | 1580 | MAS | −13N | +25B | +20N | −3B | =24N | −8B | =21N | +22B | −12N | 4.0 | 36.0 | 38.5 | 13.75 | 1671 | +34.8 |
| 20 | Yeoh, Yuan Hao Jovian | 1649 | MAS | −5B | +23N | −19B | +27N | =14N | F | +16B | =18N | −9B | 4.0 | 34.0 | 35.5 | 13.25 | 1639 | -12.0 |
| 21 | Bui Dai Lam | 1644 | VIE | −3N | +22B | +27B | −17N | −10B | −14N | =19B | +26N | =18B | 4.0 | 34.0 | 35.5 | 11.50 | 1566 | -35.6 |
| 22 | Khairul Anuar, Shahrul Nizam | 1509 | MAS | −17B | −21N | +26B | −10N | +27B | −9N | +25B | −19N | +23B | 4.0 | 30.0 | 31.5 | 9.00 | 1527 | -6.0 |
| 23 | Subramanian, Nimallan | 1481 | MAS | −4N | −20B | +28N | −11B | =26N | =25N | +27B | −12B | −22N | 3.0 | 30.0 | 30.0 | 3.75 | 1261 | -49.6 |
| 24 | Le, Vinh Dinh | 1816 | VIE | +26B | =2N | =9B | −5N | =19B | F | −7N | −15B | −16N | 2.5 | 40.5 | 42.5 | 10.00 | 1594 | -76.8 |
| 25 | NGUYEN, SUNJON KAYDEN | 1432 | LAO | −10B | −19N | −11N | −16B | +28N | =23B | −22N | +27B | F | 2.5 | 27.0 | 27.0 | 3.00 | 1212 | -47.2 |
| 26 | Eswaran, Jayvantt Muruga | 0 | MAS | −24N | −8B | −22N | F | =23B | −16N | +28B | −21B | =27N | 2.0 | 25.0 | 25.0 | 2.25 | 1207 | 0.0 |
| 27 | MANALO, SEAN MICHAEL | 0 | LAO | −12B | F | −21N | −20B | −22N | +28B | −23N | −25N | =26B | 1.5 | 24.5 | 24.5 | 1.00 | 786 | 0.0 |
| 28 | Yeoh, Chwen Xiang | 0 | MAS | −15N | F | −23B | F | −25B | −27N | −26N | −16B | F | 0.0 | 18.0 | 18.0 | 0.00 | 752 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Cabales, John Peter AllenPHI+101.66.0 pts · #5
- 2Fua, Marc JustinnPHI+84.04.5 pts · #12
- 3Nguyen Tien DungVIE+80.45.5 pts · #11
- 1Le, Vinh DinhVIE-76.82.5 pts · #23
- 2Jiroajvanichakorn, RathasartTHA-68.44.0 pts · #16
- 3Nguyen, Vuong Tung LamCMVIE-68.45.5 pts · #8
- R9+350 Elo gap
- R6+289 Elo gap
- R9+285 Elo gap