23rd Royal rated chess series 2025
Open SwissStandard
16 players participated in this 9-round tournament, held from 04 Aug 2025 to 08 Aug 2025 in Ho Chi Minh City, Vietnam. Top 10 Elo average was 1175, and top seed was Luu Huong Cuong Thinh (🇻🇳 VIE, 1765).
Le Ngoc Hieu (🇻🇳 VIE, 1744) won with 7.5/9, ahead of Nguyen Duc Khai (6.5) and Bui Cong Minh (6.0). Hieu won solo starting round 4.
The biggest upset came in round 9: Bui Cong Minh (1539) beat Luu Huong Cuong Thinh (1765), a +226-point gap.
Location
🇻🇳Ho Chi Minh City, Vietnam
Dates
04 Aug 2025 → 08 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Federations · 1 represented
🇻🇳Vietnam×15
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsLe Ngoc Hieu led from R2; +1.0-point edge over the runner-up.
Co-leaders
7
1
2
1
1
1
1
1
1
R2–R9 · LEAD HELD
Le Ngoc Hieu never relinquished the lead after R2; final gap +1.0 over the runner-up.
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Le Ngoc Hieu beat Nguyen Duc Khai (Black).
WIN STREAKS · 2 top finishers
Le Ngoc Hieu 3 wins (R4–R6)Nguyen Duc Khai 3 wins (R6–R8)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Le Ngoc Hieu | * | 1 | 1 | 1 |
| 2Nguyen Duc Khai | 0 | * | 1 | ½ |
| 3Bui Cong Minh | 0 | 0 | * | 1 |
| 4Tran Vu Le Kha | 0 | ½ | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Le Ngoc Hieu | 1744 | VIE | +16N | +4B | =5N | +3B | +2N | +12B | =6N | =7B | +14B | 7.5 | 36.5 | 37.0 | 30.50 | 1988 | +40.4 |
| 2 | Nguyen Duc Khai | 1641 | VIE | +14N | =5B | =4N | +8B | −1B | +7N | +3B | +11N | =12B | 6.5 | 38.0 | 40.5 | 26.50 | 1756 | +31.6 |
| 3 | Bui Cong Minh | 1539 | VIE | +13B | =10N | +7B | −1N | =11B | +4B | −2N | +6N | +5B | 6.0 | 40.0 | 43.0 | 25.25 | 1704 | +50.8 |
| 4 | Tran Vu Le Kha | 1659 | VIE | +6B | −1N | =2B | +9N | +7B | −3N | +13B | −5N | +11B | 5.5 | 40.5 | 43.5 | 22.25 | 1531 | -34.4 |
| 5 | Luu Huong Cuong Thinh | 1765 | VIE | +9B | =2N | =1B | +10N | F | F | =8B | +4B | −3N | 4.5 | 37.5 | 37.5 | 22.50 | 1730 | -4.2 |
| 6 | Nguyen Trinh Viet Ngu | 0 | VIE | −4N | −?B | −14N | +13N | +15B | +8N | =1B | −3B | +16N | 4.5 | 30.0 | 30.0 | 12.25 | 1376 | 0.0 |
| 7 | Nguyen Hoang Thien Tri | 0 | VIE | =11N | +16B | −3N | +14B | −4N | −2B | +12N | =1N | −9B | 4.0 | 38.5 | 39.0 | 11.50 | 1419 | 0.0 |
| 8 | Huynh Bao Kim | 0 | VIE | +15N | =11B | =10B | −2N | =12N | −6B | =5N | +13B | F | 4.0 | 30.0 | 30.0 | 11.50 | 1617 | 0.0 |
| 9 | Luu Duc Minh | 0 | VIE | −5N | =14B | +12N | −4B | =16B | −13N | +15N | −10B | +7N | 4.0 | 27.5 | 28.0 | 9.50 | 909 | 0.0 |
| 10 | Nguyen Tran Ngan Ha | 1696 | VIE | +12N | =3B | =8N | −5B | F | F | +16B | +9N | F | 4.0 | 22.0 | 22.0 | 12.50 | 1460 | -24.8 |
| 11 | Tran, Hung Vuong | 1705 | VIE | =7B | =8N | +15B | F | =3N | F | +14B | −2B | −4N | 3.5 | 29.5 | 29.5 | 10.50 | 1341 | -27.6 |
| 12 | Nguyen Ngoc Lan Phuong | 0 | VIE | −10B | +13N | −9B | +15N | =8B | −1N | −7B | F | =2N | 3.0 | 34.0 | 34.0 | 9.25 | 1424 | 0.0 |
| 13 | Vo Hoang Khanh | 0 | VIE | −3N | −12B | +16N | −6B | +14N | +9B | −4N | −8N | F | 3.0 | 30.0 | 30.0 | 7.00 | 801 | 0.0 |
| 14 | Tran Van Phuoc Loc | 0 | VIE | −2B | =9N | +6B | −7N | −13B | F | −11N | +15B | −1N | 2.5 | 34.0 | 34.0 | 7.50 | 898 | 0.0 |
| 15 | Vo Nguyen Phuc Huy | 0 | VIE | −8B | F | −11N | −12B | −6N | +16N | −9B | −14N | −?B | 1.0 | 22.0 | 22.0 | 0.50 | 907 | 0.0 |
| 16 | FIDE 12493074 | 0 | — | −1B | −7N | −13B | F | =9N | −15B | −10N | −?N | −6B | 0.5 | 28.0 | 28.0 | 2.00 | 924 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Bui Cong MinhVIE+50.86.0 pts · #2
- 2Le Ngoc HieuVIE+40.47.5 pts · #1
- 3Nguyen Duc KhaiVIE+31.66.5 pts · #3
Top rating losers
- 1Tran Vu Le KhaVIE-34.45.5 pts · #5
- 2Tran, Hung VuongVIE-27.63.5 pts · #9
- 3Nguyen Tran Ngan HaVIE-24.84.0 pts · #8
Biggest upsets
- R9+226 Elo gap
- R6+120 Elo gap