CChessStats

9th Eastern Asia Youth Chess Championships 2025 Standard-G8

Open SwissStandard

19 players participated in this 9-round tournament, held from 22 Jul 2025 to 28 Jul 2025 in Zhuhai,GuangDong, China. 8 federations represented. Top 10 Elo average was 599, and top seed was Jiahe Zhu (🇨🇳 CHN, 1599).

Jiahe Zhu (🇨🇳 CHN, 1599) won with 9.0/9, ahead of Az-Erdene Nyamdavaa (7.0) and Yunyi Zhang (6.5). Zhu won solo starting round 5.

The biggest upset came in round 7: Yunyi Zhang (1440) beat Ke Chien OO (1547), a +107-point gap.

Location
🇨🇳Zhuhai,GuangDong, China
Dates
22 Jul 2025 → 28 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇨🇳Jiahe Zhu1599
Avg top 10
599
Participants
19
Federations · 8 represented
🇨🇳China×5
🇸🇬Singapore×2
🇲🇳Mongolia×2
🇰🇷South Korea×1
🇭🇰Hong Kong China×1
🇹🇭Thailand×1
🇮🇩Indonesia×1
🇻🇳Vietnam×1
Top 3

How it unfolded

Top 6 · 9 rounds

Jiahe Zhu led from R5; +2.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
12
6
3
2
1
1
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
Zhu9Nyamdavaa7Zhang6.5Ma6Santoso5.5Wu5.5
R5–R9 · LEAD HELD

Jiahe Zhu never relinquished the lead after R5; final gap +2.0 over the runner-up.

R7 · HEAD-TO-HEAD · WINNER VS 2ND

Jiahe Zhu beat Az-Erdene Nyamdavaa (Black).

WIN STREAKS · 3 top finishers

Jiahe Zhu 9 wins (R1–R9)Az-Erdene Nyamdavaa 3 wins (R4–R6)Yunyi Zhang 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Jiahe Zhu*
1
1
—
2Az-Erdene Nyamdavaa
0
*
1
—
3Yunyi Zhang
0
0
*
1
4Yutian Ma——
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Zhu, Jiahe1599CHN+14N+17B+11N+13B+3N+8B+2N+5B+9N9.043.045.045.002239+11.2
2Az-Erdene Nyamdavaa0MGL+18N+7B−13N+17B+14N+3B−1B+8N+5N7.042.544.531.0015230.0
3Zhang, Yunyi1440SGP+19N+8B+4N+5B−1B−2N+6B=7N+12B6.548.550.031.251577+14.8
4Ma, Yutian0CHN+15N+?N−3B+11B−5N+13B−8N+6N+?B6.036.036.019.0014940.0
5Wu, Yike0CHN+?N=6B+?N−3N+4B+11B+9N−1N−2B5.544.044.018.7512580.0
6OO, Ke Chien1547TPE−8B=5N+18N+15B+16N+10B−3N−4B+13N5.539.541.521.25639-26.0
7Santoso, Vanessa Koolin0INA+?N−2N−9B+?B+?N=14B=13N=3B+8B5.532.532.512.7514390.0
8Le Hong An0VIE+6N−3N+?B+?B+13N−1N+4B−2B−7N5.044.044.016.0014060.0
9Chit Su Tun0MYA+?N−13B+7N−14B+17N+?B−5B+10N−1B5.036.036.012.508060.0
10Gong, Ziyixuan0CHN−13N−18B+?B+19N+12B−6N+16N−9B+15N5.030.530.513.507480.0
11Gu, Xiangtian Natalia0HKG+?B+12N−1B−4N+18B−5N+17B−?N+?B5.029.529.59.008060.0
12Sodbileg Uuganbayar0MGL+16N−11B−?N+?B−10N+15B+?N+14B−3N5.028.028.011.506390.0
13Ye, Jinxuan0CHN+10B+9N+2B−1N−8B−4N=7B+?N−6B4.548.048.019.757770.0
14FIDE 60167150—−1B+15B+16N+9N−2B=7N−?B−12N+17B4.540.540.516.758060.0
15Kim, Yeonseo1402KOR−4B−14N+19B−6N+?B−12N+18B+?N−10B4.029.529.53.507480.0
16FIDE 58607090—−12B+?N−14B+?N−6B+17N−10B−19N−?B3.023.523.52.007480.0
17Kijkamjai, Kannaphat0THAF−1N+?B−2N−9B−16B−11N+?B−14N2.033.533.50.008060.0
18Sim, En Xi Audelia0SGP−2B+10N−6B+?N−11N−?B−15NFF2.026.526.55.007480.0
19FIDE 58591740—−3B−?B−15N−10BF=?N−?N+16B−?N1.518.518.53.006390.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets