National Youth Chess Elite Championship 2025 - Standard Open U9
Open SwissStandard
28 players participated in this 9-round tournament, held from 22 Jul 2025 to 27 Jul 2025 in Hai Phong, Vietnam. Top 10 Elo average was 1667, and top seed was Bui Duc Thien Anh (🇻🇳 VIE, 1772).
Nguyen Nam Long (🇻🇳 VIE, 1764) won with 7.0/9, ahead of Vuong Tuan Khoa (6.0) and Le Nguyen Phong (6.0). Long won solo starting round 8.
The biggest upset came in round 1: Tran Anh Chau (1526) beat Bui Duc Thien Anh (1772), a +246-point gap.
Location
🇻🇳Hai Phong, Vietnam
Dates
22 Jul 2025 → 27 Jul 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Federations · 1 represented
🇻🇳Vietnam×28
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsNguyen Nam Long led from R3; +1.0-point edge over the runner-up.
Co-leaders
9
2
1
1
1
1
2
1
1
R3–R9 · LEAD HELD
Nguyen Nam Long never relinquished the lead after R3; final gap +1.0 over the runner-up.
R1–R4 · WIN STREAK
Nguyen Nam Long won 4 in a row (R1–R4).
R5 · LATE SURGE
Le Nguyen Phong was #12 at R5, climbed to #2 over the final stretch.
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Nguyen Nam Long | * | — | ½ | ½ |
| 2Le Nguyen Phong | — | * | 0 | 1 |
| 3Vuong Tuan Khoa | ½ | 1 | * | ½ |
| 4Tran Tuan Khang | ½ | 0 | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nguyen Nam Long | 1764 | VIE | +21B | +11N | +17B | +8N | =2B | =4N | =9B | +7N | =5B | 7.0 | 41.0 | 45.0 | 34.00 | 1810 | +18.4 |
| 2 | Vuong Tuan Khoa | 1571 | VIE | +27B | =8N | +9B | +3N | =1N | =7B | +10N | =4B | −11N | 6.0 | 43.5 | 45.0 | 28.75 | 1710 | +56.4 |
| 3 | Le Nguyen Phong | 1752 | VIE | =12N | +18B | +6N | −2B | −7N | +13B | +17B | =9N | +4N | 6.0 | 41.0 | 45.0 | 29.00 | 1690 | -28.0 |
| 4 | Tran Tuan Khang | 1627 | VIE | −18N | +26B | +7N | +15B | =10N | =1B | +8N | =2N | −3B | 5.5 | 42.5 | 45.0 | 26.00 | 1646 | +8.8 |
| 5 | Bui Duc Thien Anh | 1772 | VIE | −10N | +20B | =12N | +16B | +11N | =6B | −7N | +8B | =1N | 5.5 | 42.0 | 46.0 | 27.25 | 1630 | -56.8 |
| 6 | Mai Duy Hung | 1604 | VIE | +25B | =10N | −3B | +22N | =17B | =5N | =18B | =12N | +7B | 5.5 | 38.5 | 41.0 | 23.25 | 1649 | +17.2 |
| 7 | Nguyen Viet Khoi | 1540 | VIE | +28B | =9N | −4B | +23N | +3B | =2N | +5B | −1B | −6N | 5.0 | 44.0 | 44.5 | 21.00 | 1668 | +52.4 |
| 8 | Vu Thanh An | 1505 | VIE | +14N | =2B | +16N | −1B | +15N | =10B | −4B | −5N | +17B | 5.0 | 43.0 | 47.0 | 23.50 | 1665 | +60.0 |
| 9 | Hoang Gia Bao | 1624 | VIE | F | =7B | −2N | +19B | =12N | +11B | =1N | =3B | +10N | 5.0 | 43.0 | 43.0 | 25.50 | 1706 | +36.0 |
| 10 | Tran Anh Chau | 1526 | VIE | +5B | =6B | +19N | =17N | =4B | =8N | −2B | +18N | −9B | 5.0 | 40.5 | 44.5 | 23.50 | 1648 | +56.4 |
| 11 | Le Cong Thang | 1550 | VIE | F | −1B | +13N | +21N | −5B | −9N | +19B | +17N | +2B | 5.0 | 40.5 | 40.5 | 23.00 | 1717 | +70.4 |
| 12 | Nguyen Thanh Tung | 1522 | VIE | =3B | =15N | =5B | +24N | =9B | −17N | +14N | =6B | =16N | 5.0 | 40.0 | 43.0 | 23.50 | 1668 | +62.4 |
| 13 | Nguyen Thanh San | 1511 | VIE | +23B | −17N | −11B | =20N | +22B | −3N | +15B | =19N | +18B | 5.0 | 35.5 | 39.0 | 20.00 | 1614 | +44.8 |
| 14 | Phan Dang Anh Hao | 1633 | VIE | −8B | +27N | −21B | +25N | −19B | +23N | −12B | +22N | +20B | 5.0 | 32.0 | 33.5 | 15.50 | 1485 | -56.8 |
| 15 | Nguyen Tuan Minh | 1528 | VIE | =20N | =12B | +18N | −4N | −8B | =16B | −13N | +27B | +24N | 4.5 | 36.0 | 37.5 | 15.25 | 1500 | +5.2 |
| 16 | To Phuc Gia Dat | 1625 | VIE | =22B | +24N | −8B | −5N | =23B | =15N | +25B | =20N | =12B | 4.5 | 34.5 | 37.0 | 16.00 | 1549 | -33.6 |
| 17 | Le Huynh Duy Anh | 1573 | VIE | +26N | +13B | −1N | =10B | =6N | +12B | −3N | −11B | −8N | 4.0 | 43.5 | 46.0 | 17.75 | 1537 | -17.2 |
| 18 | Tran Minh Quang | 1483 | VIE | +4B | −3N | −15B | +27N | +21B | =19N | =6N | −10B | −13N | 4.0 | 39.5 | 41.0 | 15.75 | 1498 | +2.4 |
| 19 | Nguyen, Duc Minh | 1640 | VIE | =24B | +22N | −10B | −9N | +14N | =18B | −11N | =13B | =21N | 4.0 | 37.0 | 40.0 | 17.00 | 1496 | -68.4 |
| 20 | Vo Dinh Khai Ca | 0 | VIE | =15B | −5N | −23B | =13B | +26N | +21N | =22B | =16B | −14N | 4.0 | 36.0 | 38.5 | 15.50 | 1519 | 0.0 |
| 21 | Ngo Duc Anh Dung | 1525 | VIE | −1N | +28B | +14N | −11B | −18N | −20B | =23B | +25N | =19B | 4.0 | 35.0 | 35.5 | 11.75 | 1539 | +8.0 |
| 22 | Nguyen Le Phuong Lam | 1480 | VIE | =16N | −19B | +26N | −6B | −13N | +24B | =20N | −14B | +27N | 4.0 | 33.5 | 35.0 | 11.25 | 1469 | -6.4 |
| 23 | Dao Quang Duc Uy | 1633 | VIE | −13N | =25B | +20N | −7B | =16N | −14B | =21N | =24B | =26B | 3.5 | 33.0 | 35.5 | 12.25 | 1389 | -92.0 |
| 24 | Nguyen Quang Nam | 1520 | VIE | =19N | −16B | =25N | −12B | =28B | −22N | +26B | =23N | −15B | 3.0 | 30.5 | 31.0 | 7.75 | 1391 | -62.4 |
| 25 | Le Lam Khai | 1447 | VIE | −6N | =23N | =24B | −14B | =27N | +28B | −16N | −21B | F | 2.5 | 27.5 | 27.5 | 4.50 | 1315 | -35.2 |
| 26 | Dinh Minh Duc | 1434 | VIE | −17B | −4N | −22B | +28N | −20B | +27B | −24N | F | =23N | 2.5 | 26.0 | 26.0 | 3.75 | 1199 | -45.2 |
| 27 | Nguyen Thanh Dat | 0 | VIE | −2N | −14B | +28N | −18B | =25B | −26N | F | −15N | −22B | 1.5 | 29.0 | 29.0 | 1.75 | 1083 | 0.0 |
| 28 | Ta Minh Duc | 0 | VIE | −7N | −21N | −27B | −26B | =24N | −25N | F | F | F | 0.5 | 18.5 | 18.5 | 1.50 | 1128 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Le Cong ThangVIE+70.45.0 pts · #8
- 2Nguyen Thanh TungVIE+62.45.0 pts · #6
- 3Vu Thanh AnVIE+60.05.0 pts · #7
Top rating losers
- 1Dao Quang Duc UyVIE-92.03.5 pts · #22
- 2Nguyen, Duc MinhVIE-68.44.0 pts · #14
- 3Nguyen Quang NamVIE-62.43.0 pts · #23
Biggest upsets
- R1+246 Elo gap
- R7+232 Elo gap
- R5+212 Elo gap