CChessStats

21th Royal rated chess series 2025

Open SwissStandard

22 players participated in this 9-round tournament, held from 16 May 2025 to 22 May 2025 in Ho Chi Minh City, Vietnam. Top 10 Elo average was 1746, and top seed was Nguyen Tri Dung (🇻🇳 VIE, 1947).

Duc Minh Lai (🇻🇳 VIE, 1892) won with 8.0/9, ahead of Nguyen Tri Dung (7.0) and Thuy Tien Vo (6.5). Lai won solo starting round 7.

The biggest upset came in round 7: Nguyen Tram Thien Thang (1566) beat Dang Tuan Nguyen (1813), a +247-point gap.

Location
🇻🇳Ho Chi Minh City, Vietnam
Dates
16 May 2025 → 22 May 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
🇻🇳Nguyen Tri Dung1947
Avg top 10
1,746
Participants
22
Federations · 1 represented
🇻🇳Vietnam×21
Top 3

How it unfolded

Top 6 · 9 rounds

Duc Minh Lai led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
8
4
2
2
1
2
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
Lai8Dung7Vo6.5Tien6Khoa5.5Minh5
R5–R9 · LEAD HELD

Duc Minh Lai never relinquished the lead after R5; final gap +1.0 over the runner-up.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Duc Minh Lai drew with Nguyen Tri Dung (White).

WIN STREAKS · 3 top finishers

Duc Minh Lai 3+3 wins (R1–R3, R7–R9)Nguyen Tri Dung 3 wins (R1–R3)Thuy Tien Vo 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Duc Minh Lai*
½
½
1
2Nguyen Tri Dung
½
*
0
1
3Thuy Tien Vo
½
1
*
0
4Nguyen Trung Tien
0
0
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Lai, Duc Minh1892VIE+21N+7B+8N=2B+4N=3B+5N+12B+6N8.044.546.039.252141+61.2
2Nguyen Tri Dung1947VIE+18B+4N+11B=1N=5B+6N−3B+15N+7B7.044.548.034.752005+19.2
3Vo, Thuy Tien0VIE=10N=9B+6B+8N+11B=1N+2N−4B+13N6.545.049.034.2518040.0
4Nguyen Trung Tien1739VIE+16N−2B+20B+14N−1B+9N+13B+3N−5B6.044.046.025.501642-20.0
5Ho Dang Khoa1765VIE=19N+10B=13N+16B=2N+14B−1B−6N+4N5.542.545.025.251731-8.0
6Duong Hoang Nhat Minh1541VIE−14N+17B−3N+20B+7N−2B+10N+5B−1B5.044.546.521.001812+64.8
7Nguyen Tram Thien Thang1566VIE+15B−1N−14B+21N−6B+17N+11B+13N−2N5.040.542.018.001606+1.6
8Le Minh Tri1745VIE+17B+14N−1B−3B−13N=12N+21B=11N+15B5.039.541.018.001684-9.6
9Hoang Nhat Duy1734VIE=13B=3N+15B−11N+10B−4BF+17N+14N5.037.537.521.751570-25.6
10Mang Hoang Hai My1503VIE=3B−5N+19B+13B−9N=15N−6B+16B=12N4.538.541.018.001370-27.6
11Dang Tuan Nguyen1813VIE+22B+20N−2N+9B−3N−13B−7N=8B+18B4.538.039.014.001693-28.0
12Nguyen Hoang Loi1722VIE−20N+22B−16N+18B=15N=8B+14N−1N=10B4.535.036.015.251661-12.4
13Nguyen Tuan Anh0VIE=9N+19B=5B−10N+8B+11N−4N−7B−3B4.042.044.517.2516500.0
14Vo Nguyen Thanh Tuan0VIE+6B−8B+7N−4B+16N−5N−12B+22N−9B4.040.041.015.0015310.0
15Vo Huu Phuoc0VIE−7N+21B−9N+19N=12B=10B+16N−2B−8N4.037.539.012.5014360.0
16Nguyen Tram Thien Thanh0VIE−4B+18N+12B−5N−14B+21N−15B−10N+22N4.033.534.510.5015750.0
17Nguyen Ly Chi Cuong0VIE−8N−6N−21B+22N+19B−7B+18N−9B+20N4.029.530.59.0013720.0
18Duong Hoang Minh Anh1462VIE−2N−16B+22N−12N=21B+20N−17B+19B−11N3.530.031.06.251002-15.6
19Ngo Nguyen Gia Nghi0VIE=5B−13N−10N−15B−17N+22B+20B−18NF2.528.528.55.7513170.0
20Vo Hoang Thanh Vy0VIE+12B−11B−4N−6N−22B−18B−19N+21N−17B2.031.532.56.0014180.0
21Dinh Nguyen Manh Hung0VIE−1B−15N+17N−7B=18N−16B−8N−20BF1.535.535.55.7513470.0
22FIDE 124940890—−11N−12N−18B−17B+20N−19NF−14B−16B1.029.029.02.008690.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets