Via Chess Open

Open SwissStandard

55 players participated in this 7-round tournament, held from 06 Jun 2025 to 08 Jun 2025 in Seongnam, South Korea. 1 titled players from 2 federations. Top 10 Elo average was 1916, and top seed was Erdenetulga Rentsen (🇰🇷 KOR, 2182).

Jinwoo Noh (🇰🇷 KOR, 1935) won with 6.5/7, ahead of Yegeon Kim (6.0) and Erdenetulga Rentsen (5.5). Noh won solo starting round 5.

The biggest upset came in round 4: Yejun Kim (1804) beat Erdenetulga Rentsen (2182), a +378-point gap.

Location

🇰🇷Seongnam, South Korea

Dates

06 Jun 2025 → 08 Jun 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 7 rounds

Top seed

🇰🇷Erdenetulga Rentsen2182

Avg top 10

1,916

Participants

Titled players · 1

FM×1

Federations · 2 represented

🇰🇷South Korea×52

🇰🇿Kazakhstan×1

Top 3

🥇
Jinwoo Noh
🇰🇷KOR·1935
6.5pts·2248perf+82.0
🥈
Yegeon Kim
🇰🇷KOR·1811
6.0pts·2017perf+62.8
🥉
Erdenetulga Rentsen
🇰🇷KOR·2182
5.5pts·2019perf-18.4

How it unfolded

Top 6 · 7 rounds

Jinwoo Noh led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Noh6.5Kim6Rentsen5.5Lee5Kim5Yun5

R5–R7 · LEAD HELD

Jinwoo Noh held the sole lead from R5 through R7 without losing it.

WIN STREAKS · 3 top finishers

Jinwoo Noh 5 wins (R1–R5)Yegeon Kim 4 wins (R4–R7)Erdenetulga Rentsen 3 wins (R5–R7)

R4 · LATE SURGE

Erdenetulga Rentsen was #13 at R4, climbed to #3 over the final stretch.

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Noh, Jinwoo	1935	KOR	+16N	+12B	+15N	+7B	+5N	=4B	+6N	6.5	28.5	32.5	30.00	2248	+82.0
2	Kim, Yegeon	1811	KOR	=26N	+42B	=25N	+33B	+8N	+15B	+4N	6.0	24.0	26.5	23.00	2017	+62.8
3	Rentsen, Erdenetulga	2182	KOR	+20N	=31B	+19N	−5N	+27B	+24B	+15N	5.5	24.0	27.0	20.50	2019	-18.4
4	Yun, HungiFM	2058	KOR	+34B	+14N	+18B	=6N	+10B	=1N	−2B	5.0	31.0	34.0	22.25	1970	-22.4
5	Kim, Yejun	1804	KOR	+29N	+33B	+8N	+3B	−1B	=6N	=10B	5.0	30.5	33.5	22.00	1974	+62.0
6	Meiyazhagan, Kaviinayan	1900	KOR	+28N	+27B	+22N	=4B	+7N	=5B	−1B	5.0	29.0	32.5	21.00	1980	+27.4
7	Kim, Andrey	1889	KOR	+17B	+21N	+13B	−1N	−6B	+34N	+18B	5.0	28.0	31.0	19.50	1903	+10.0
8	Kim, Yubin	1637	KOR	+43N	+24B	−5B	+18N	−2B	+21N	+17B	5.0	26.5	29.0	18.00	1868	+75.2
9	Jang, Seojun	1826	KOR	+37B	=19N	=11B	=27N	=13B	+14N	+16B	5.0	25.0	28.0	19.75	1839	+6.8
10	Lee, Jiwoo	1847	KOR	=42N	+26B	+31N	+32B	−4N	+11B	=5N	5.0	24.0	26.5	17.75	1935	+32.8
11	Song, Jihu	1764	KOR	+38N	=25B	=9N	+20B	=24N	−10N	+26B	4.5	24.5	27.5	16.50	1784	+10.8
12	Yang, Dongwoo	1730	KOR	+23B	−1N	−17B	=46N	+45N	+28B	+29N	4.5	24.0	26.5	14.75	1698	-8.4
13	Jung, Jinuk	1713	KOR	+48N	+32B	−7N	=25B	=9N	=29B	+24N	4.5	23.5	25.5	14.50	1819	+21.6
14	Sung, Jaehyun	1759	KOR	+39N	−4B	=28N	+42B	+43N	−9B	+25N	4.5	22.5	25.0	13.25	1755	+0.4
15	Nam, Kanghyeon	1793	KOR	+44B	+30N	−1B	+36N	+17B	−2N	−3B	4.0	28.5	31.0	13.00	1775	-3.2
16	Lee, Jinwoo	1610	KOR	−1B	+23N	−32N	+39B	+22N	+19B	−9N	4.0	26.5	29.5	15.00	1768	+55.2
17	Hur, Jiyu	1591	KOR	−7N	+48B	+12N	+22B	−15N	+27B	−8N	4.0	26.0	28.0	14.00	1754	+63.2
18	Kim, Minjae	1781	KOR	+52N	+36B	−4N	−8B	+25N	+20B	−7N	4.0	25.5	26.0	11.00	1728	-8.6
19	Ogay, Anastassiya	1657	KOR	+49N	=9B	−3B	=28N	+37B	−16N	+34B	4.0	24.0	26.0	12.25	1717	+14.8
20	Park, Jonghwan	1628	KOR	−3B	+41N	+40B	−11N	+31B	−18N	+32N	4.0	23.0	26.0	12.00	1776	+33.6
21	Pak, Maksim	1666	KOR	+55N	−7B	+29N	−24B	+35N	−8B	+39N	4.0	23.0	23.0	9.50	1654	-9.6
22	Li, Artem Serg	1768	KOR	+46B	+51N	−6B	−17N	−16B	+44B	+35N	4.0	21.0	22.0	9.00	1615	-48.0
23	Yang, Hayeon	1459	KOR	−12N	−16B	+54N	−35N	+40B	+31B	+36N	4.0	20.5	20.5	9.00	1484	+1.6
24	Kim, Keonwoo	1805	KOR	+45B	−8N	+35B	+21N	=11B	−3N	−13B	3.5	26.5	29.0	11.75	1734	-28.0
25	Ten, Polina	1635	KOR	+50B	=11N	=2B	=13N	−18B	+43N	−14B	3.5	26.0	28.0	12.00	1616	-8.4
26	Bae, Jinwoo	1563	KOR	=2B	−10N	+38B	−30N	+46B	+33B	−11N	3.5	25.0	27.5	11.50	1668	+36.0
27	Lee, Yunseo	1686	KOR	+47B	−6N	+37B	=9B	−3N	−17N	+44B	3.5	25.0	27.0	10.00	1691	-5.2
28	I, Mark	1608	KOR	−6B	+47N	=14B	=19B	=33N	−12N	+43B	3.5	23.5	25.5	10.25	1596	-5.2
29	Son, Juwon	1534	KOR	−5B	+53N	−21B	+47N	+36B	=13N	−12B	3.5	23.0	23.5	7.75	1411	-19.6
30	Cho, Haedeun	1632	KOR	+54N	−15B	−43N	+26B	=44N	+42B	F	3.5	15.0	15.0	7.25	1708	+16.4
31	Han, Giuk	1759	KOR	+41B	=3N	−10B	=43B	−20N	−23N	+47B	3.0	24.0	26.0	9.00	1454	-30.2
32	Kim, Echae	1903	KOR	+35B	−13N	+16B	−10N	−34B	+37N	−20B	3.0	23.5	26.5	10.00	1607	-102.8
33	Yang, Hayoon	1663	KOR	+53B	−5N	+46B	−2N	=28B	−26N	=38B	3.0	23.5	24.0	6.25	1496	-58.4
34	Li, Anna	1621	KOR	−4N	=38B	=49N	+41B	+32N	−7B	−19N	3.0	23.0	25.0	8.50	1637	-2.8
35	Kim, Ria	1609	KOR	−32N	+39B	−24N	+23B	−21B	+47N	−22B	3.0	21.5	23.5	9.00	1557	-16.8
36	Kim, Rian	1642	KOR	+40B	−18N	+51B	−15B	−29N	+48N	−23B	3.0	20.5	21.5	6.00	1358	0.0
37	Youn, Laeho	1577	KOR	−9N	+55B	−27N	+49B	−19N	−32B	+42N	3.0	20.0	20.0	4.50	1490	-23.6
38	Ten, Oleg	1479	KAZ	−11B	=34N	−26N	+52B	−42N	+45B	=33N	3.0	19.0	19.5	6.00	1563	+34.8
39	Kim, Geono	1465	KOR	−14B	−35N	+53B	−16N	+54B	+46N	−21B	3.0	18.5	18.5	3.00	1386	-18.4
40	Kim, Siho	0	KOR	−36N	+52B	−20N	−45B	−23N	+51B	+?N	3.0	15.0	15.0	1.50	1487	0.0
41	Choi, Jungwoon	1478	KOR	−31N	−20B	+55N	−34N	−47B	+52B	+49N	3.0	14.5	14.5	2.50	1439	0.0
42	Lim, Jiseong	1583	KOR	=10B	−2N	+45B	−14N	+38B	−30N	−37B	2.5	25.0	27.5	8.00	1562	-11.6
43	Lim, Seungmin	0	KOR	−8B	+44N	+30B	=31N	−14B	−25B	−28N	2.5	23.0	25.5	7.50	1549	0.0
44	Jang, Minki	1527	KOR	−15N	−43B	+48N	+51B	=30B	−22N	−27N	2.5	19.5	20.5	4.75	1511	-4.0
45	Kim, Geonmin	1556	KOR	−24N	=49B	−42N	+40N	−12B	−38N	+54B	2.5	18.5	18.5	4.00	845	-63.6
46	Kim, Seungwon	1479	KOR	−22N	+54B	−33N	=12B	−26N	−39B	+53N	2.5	18.5	18.5	2.75	1277	-39.2
47	Choo, Jinho	0	KOR	−27N	−28B	+52N	−29B	+41N	−35B	−31N	2.0	19.5	20.0	3.50	1346	0.0
48	Yang, Haeun	1423	KOR	−13B	−17N	−44B	+53N	+51N	−36B	−50N	2.0	17.0	17.5	1.50	803	-32.4
49	Kim, Aleksandr Al	0	KOR	−19B	=45N	=34B	−37N	−?B	+54N	−41B	2.0	15.5	15.5	2.75	1368	0.0
50	Palamar, Alina	0	KOR	−25N	F	F	F	F	+55B	+48B	2.0	5.5	5.5	2.00	1535	0.0
51	FIDE 13225626	0	—	F	−22B	−36N	−44N	−48B	−40N	+55N	1.0	14.5	14.5	0.00	771	0.0
52	Zee, Hyochan	1480	KOR	−18B	−40N	−47B	−38N	=53B	−41N	F	0.5	15.5	15.5	0.25	821	-30.4
53	Khegai, Denis	0	KOR	−33N	−29B	−39N	−48B	=52N	F	−46B	0.5	14.5	14.5	0.25	1115	0.0
54	Ten, Dmitriy Val	0	KOR	−30B	−46N	−23B	F	−39N	−49B	−45N	0.0	17.5	17.5	0.00	720	0.0
55	FIDE 13234218	0	—	−21B	−37N	−41B	−?N	F	−50N	−51B	0.0	13.0	13.0	0.00	828	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Noh, JinwooKOR
+82.0
6.5 pts · #1
2Kim, YubinKOR
+75.2
5.0 pts · #14
3Hur, JiyuKOR
+63.2
4.0 pts · #13

Top rating losers

1Kim, EchaeKOR
-102.8
3.0 pts · #25
2Kim, GeonminKOR
-63.6
2.5 pts · #55
3Yang, HayoonKOR
-58.4
3.0 pts · #33

Biggest upsets

R4+378 Elo gap
Kim, Yejun1804 beat Rentsen, Erdenetulga2182
R6+300 Elo gap
Yang, Hayeon1459 beat Han, Giuk1759
R5+282 Elo gap
Li, Anna1621 beat Kim, Echae1903