40th National Age Group Chess Championships Under 20
28 players participated in this 9-round tournament, held from 09 Dec 2025 to 13 Dec 2025 in Singapore, Singapore. 2 titled players from 7 federations. Top 10 Elo average was 1889, and top seed was Tuan An Tran (🇬🇺 GUM, CM, 2036).
Jai Adithya Gnanasekar (🇸🇬 SGP, 1875) won with 6.5/9, ahead of Meng Ren Morgan Chen (6.5) and Tze Shyan Evin Sung (6.5). Gnanasekar shared the lead from round 8, winning on tie-break.
The biggest upset came in round 1: Cheng Hao Soo (1664) beat Tuan An Tran (CM, 2036), a +372-point gap.
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How it unfolded
Top 6 · 9 roundsTight race until R5; 3 players tied at 6.5/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
Jyuin Pang Alexx Xander Leong takes the sole lead (5.0/6).
3 players finish on 6.5/9. Gnanasekar takes the title on Buchholz Cut1 (45.5).
Jai Adithya Gnanasekar drew with Meng Ren Morgan Chen (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jai Adithya Gnanasekar | * | ½ | ½ | 0 |
| 2Meng Ren Morgan Chen | ½ | * | ½ | 1 |
| 3CMTze Shyan Evin Sung | ½ | ½ | * | 1 |
| 4Jyuin Pang Alexx Xander Leong | 1 | 0 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gnanasekar, Jai Adithya | 1875 | SGP | +25B | +12N | +5B | =2B | +7N | −4N | =13B | +8N | =3N | 6.5 | 45.5 | 48.5 | 33.75 | 1982 | +59.6 |
| 2 | Chen, Meng Ren Morgan | 1930 | SGP | +16B | +6N | +4B | =1N | =3B | −5N | +11B | =10N | +13B | 6.5 | 45.0 | 49.5 | 34.50 | 1968 | +26.4 |
| 3 | Sung, Tze Shyan EvinCM | 2022 | SGP | +15N | +14B | =10N | =13B | =2N | =11N | +6B | +4N | =1B | 6.5 | 43.5 | 48.0 | 34.25 | 1968 | -8.5 |
| 4 | Leong, Jyuin Pang Alexx Xander | 1855 | SGP | +11N | +21B | −2N | +10B | +13N | +1B | =5N | −3B | =6N | 6.0 | 45.5 | 49.0 | 30.25 | 1943 | +44.8 |
| 5 | Ventura, Gio Troy | 1793 | PHI | +27B | +19N | −1N | +8B | =10N | +2B | =4B | −13N | +11B | 6.0 | 43.0 | 45.0 | 28.50 | 1834 | +24.0 |
| 6 | Yu, Kaiyi | 1727 | SGP | +9N | −2B | −11N | +26B | +19N | +7B | −3N | +21B | =4B | 5.5 | 42.5 | 44.5 | 23.50 | 1780 | +11.2 |
| 7 | Tran, Tuan AnCM | 2036 | GUM | −21N | +8B | +23B | +17N | −1B | −6N | +12B | =9N | +10B | 5.5 | 40.5 | 43.5 | 25.25 | 1814 | -73.6 |
| 8 | Ong, En Jie Jakin | 1465 | SGP | +18B | −7N | +12B | −5N | +17B | =10B | +14N | −1B | +23N | 5.5 | 40.5 | 43.5 | 23.00 | 1842 | +162.0 |
| 9 | Wang, Zihao | 0 | SGP | −6B | =16N | +25B | +12N | =15N | +18B | −10N | =7B | +14N | 5.5 | 38.5 | 41.5 | 23.75 | 1766 | 0.0 |
| 10 | Liew, Tze Chi | 1805 | SGP | +20B | +23N | =3B | −4N | =5B | =8N | +9B | =2B | −7N | 5.0 | 45.5 | 48.5 | 24.75 | 1770 | -10.0 |
| 11 | Aditya Sriram | 1517 | IND | −4B | +28N | +6B | =21N | +14N | =3B | −2N | +15B | −5N | 5.0 | 43.0 | 43.5 | 20.00 | 1781 | +98.4 |
| 12 | Yu, Shuugo | 1669 | USA | +22N | −1B | −8N | −9B | +26N | +19B | −7N | +24B | +17B | 5.0 | 37.5 | 39.5 | 16.50 | 1687 | +0.8 |
| 13 | Kapoor, Satvik | 2027 | SGP | F | =17N | +18B | =3N | −4B | +15B | =1N | +5B | −2N | 4.5 | 44.0 | 44.0 | 23.00 | 1874 | -56.4 |
| 14 | Gan, Wei En Justin | 1747 | SGP | +28B | −3N | =17B | +16N | −11B | +24N | −8B | +18N | −9B | 4.5 | 38.0 | 38.5 | 14.00 | 1686 | -22.0 |
| 15 | Chen, Ziyi Claire | 1623 | SGP | −3B | =27N | +19B | +20N | =9B | −13N | =18B | −11N | +25N | 4.5 | 36.5 | 38.5 | 16.75 | 1642 | -5.2 |
| 16 | Tan, Sue Anne | 1580 | MAS | −2N | =9B | +22N | −14B | −24N | −23B | +26N | +19B | +21N | 4.5 | 33.5 | 35.5 | 15.75 | 1476 | -23.5 |
| 17 | Chern, Ze Hearn | 1748 | SGP | +26N | =13B | =14N | −7B | −8N | +20B | =21N | =23B | −12N | 4.0 | 35.5 | 37.5 | 13.75 | 1621 | -57.2 |
| 18 | Manjunathan Janani, Yokgan | 1798 | SGP | −8N | +26B | −13N | +27B | +21B | −9N | =15N | −14B | =20B | 4.0 | 34.0 | 36.0 | 11.75 | 1589 | -72.4 |
| 19 | Yap, Jyan | 0 | SGP | +24N | −5B | −15N | +23B | −6B | −12N | +27B | −16N | +28N | 4.0 | 33.5 | 34.0 | 8.50 | 1548 | 0.0 |
| 20 | Loh, Magnus | 1495 | SGP | −10N | +24B | =21N | −15B | =23N | −17N | =22B | +28B | =18N | 4.0 | 30.5 | 31.0 | 10.50 | 1595 | +30.4 |
| 21 | Soo, Cheng Hao | 1664 | SGP | +7B | −4N | =20B | =11B | −18N | +22N | =17B | −6N | −16B | 3.5 | 38.5 | 42.0 | 15.50 | 1578 | -40.0 |
| 22 | Zhao, Kexuan | 0 | CHN | −12B | =25N | −16B | =28N | +27N | −21B | =20N | =26B | =24N | 3.5 | 27.0 | 27.5 | 8.25 | 1479 | 0.0 |
| 23 | Thoo, Jun Xue Tristan | 1568 | SGP | F | −10B | −7N | −19N | =20B | +16N | +24B | =17N | −8B | 3.0 | 35.5 | 35.5 | 11.50 | 1626 | +15.6 |
| 24 | Combs, Noah | 1673 | GUM | −19B | −20N | =27B | +25N | +16B | −14B | −23N | −12N | =22B | 3.0 | 31.5 | 33.5 | 10.25 | 1476 | -75.6 |
| 25 | Low, Hei Yuet Cheryl | 1543 | SGP | −1N | =22B | −9N | −24B | +28N | =26B | F | +27N | −15B | 3.0 | 27.5 | 27.5 | 5.25 | 1462 | -9.2 |
| 26 | Lee, Kang Yu | 0 | SGP | −17B | −18N | +28B | −6N | −12B | =25N | −16B | =22N | F | 2.0 | 31.5 | 32.0 | 3.75 | 1277 | 0.0 |
| 27 | Sim, Guan Yee Cedric | 1444 | SGP | −5N | =15B | =24N | −18N | −22B | +28B | −19N | −25B | F | 2.0 | 30.0 | 30.5 | 4.25 | 1447 | -2.0 |
| 28 | Padrique, Sarah Jennica | 0 | GUM | −14N | −11B | −26N | =22B | −25B | −27N | F | −20N | −19B | 0.5 | 28.0 | 28.0 | 1.75 | 749 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Ong, En Jie JakinSGP+162.05.5 pts · #6
- 2Aditya SriramIND+98.45.0 pts · #11
- 3Gnanasekar, Jai AdithyaSGP+59.66.5 pts · #1
- 1Combs, NoahGUM-75.63.0 pts · #22
- 2Tran, Tuan AnCMGUM-73.65.5 pts · #7
- 3Manjunathan Janani, YokganSGP-72.44.0 pts · #14
- R1+372 Elo gap
- R1+333 Elo gap
- R6+309 Elo gap