1st CHESSFREAK Tournament
Open SwissStandard
53 players participated in this 6-round tournament, held from 08 Oct 2025 to 09 Oct 2025 in Seongnam, South Korea. 1 titled players. Top 10 Elo average was 1886, and top seed was Hongjin Ahn (🇰🇷 KOR, IM, 2304).
Hongjin Ahn (🇰🇷 KOR, IM, 2304) won with 6.0/6, ahead of Yegeon Kim (5.0) and Taewoo A Kim (5.0). Ahn won solo starting round 4.
The biggest upset came in round 1: Minki Jang (1551) beat Taewoo A Kim (1924), a +373-point gap.
Location
🇰🇷Seongnam, South Korea
Dates
08 Oct 2025 → 09 Oct 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Titled players · 1
IM×1
Federations · 1 represented
🇰🇷South Korea×49
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsIM Hongjin Ahn led from R4; +1.0-point edge over the runner-up.
Co-leaders
22
10
4
1
1
1
R4–R6 · LEAD HELD
IM Hongjin Ahn never relinquished the lead after R4; final gap +1.0 over the runner-up.
WIN STREAKS · 3 top finishers
IM Hongjin Ahn 6 wins (R1–R6)Taewoo A Kim 5 wins (R2–R6)Yegeon Kim 4 wins (R3–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMHongjin Ahn | * | — | — | — |
| 2Taewoo A Kim | — | * | — | — |
| 3Yegeon Kim | — | — | * | 0 |
| 4Juan Kim | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ahn, HongjinIM | 2304 | KOR | +23B | +13N | +14B | +16N | +5B | +4N | 6.0 | 19.5 | 22.5 | 22.50 | 2704 | +9.6 |
| 2 | Kim, Yegeon | 1882 | KOR | +26N | −6B | +33N | +34B | +13N | +8N | 5.0 | 16.5 | 18.5 | 14.00 | 2403 | +27.2 |
| 3 | Kim, Taewoo A | 1924 | KOR | −33N | +20B | +49N | +12B | +15N | +7B | 5.0 | 16.0 | 17.0 | 15.00 | 1901 | -0.4 |
| 4 | Yang, Dongwoo | 1886 | KOR | +18B | +44N | =12B | +10N | +11B | −1B | 4.5 | 20.0 | 21.5 | 13.75 | 1965 | +22.8 |
| 5 | Lee, Dongseob | 1816 | KOR | +35N | +21B | +15N | =11B | −1N | +10B | 4.5 | 19.5 | 21.5 | 13.75 | 1954 | +16.8 |
| 6 | Kim, Juan | 0 | KOR | =19B | +2N | −10B | +41N | +14B | +11N | 4.5 | 18.5 | 20.5 | 15.50 | 1827 | 0.0 |
| 7 | Kim, Taewoo D | 1844 | KOR | +37B | −12N | +18B | +9N | +16B | −3N | 4.0 | 19.5 | 21.5 | 13.00 | 1799 | -7.6 |
| 8 | Park, Sangwoo | 0 | KOR | +29B | =10N | =19B | +28N | +17N | −2B | 4.0 | 17.5 | 20.0 | 11.75 | 1774 | 0.0 |
| 9 | Kim, Kwansoo | 1653 | KOR | +47N | +17B | −11N | −7B | +20B | +19N | 4.0 | 17.0 | 18.0 | 10.50 | 1808 | +16.8 |
| 10 | Chae, Hosung | 1682 | KOR | +46N | =8B | +6N | −4B | +12N | −5N | 3.5 | 21.0 | 22.0 | 11.00 | 1659 | -3.6 |
| 11 | Gim, Hajin | 1794 | KOR | +20B | +24N | +9B | =5N | −4N | −6B | 3.5 | 20.5 | 23.5 | 12.25 | 1833 | +9.2 |
| 12 | Jun, Sanghui | 1659 | KOR | +22B | +7B | =4N | −3N | −10B | +27B | 3.5 | 20.0 | 22.5 | 11.75 | 1747 | +16.4 |
| 13 | Kim, Jaeha | 1676 | KOR | +27B | −1B | +38N | +19N | −2B | =30N | 3.5 | 19.0 | 21.0 | 8.75 | 1778 | +13.2 |
| 14 | Oh, Sejun | 1705 | KOR | +28N | +33B | −1N | =21B | −6N | +26B | 3.5 | 18.5 | 20.5 | 8.50 | 1795 | +14.8 |
| 15 | Jang, Junyoung | 1710 | KOR | +43B | +42N | −5B | +22N | −3B | =16N | 3.5 | 18.0 | 20.0 | 8.75 | 1579 | -8.8 |
| 16 | Lee, Minseong | 1813 | KOR | +52N | +36B | +34N | −1B | −7N | =15B | 3.5 | 17.5 | 17.5 | 5.75 | 1810 | -6.5 |
| 17 | Han, Giuk | 1814 | KOR | +38B | −9N | +37B | +24N | −8B | =18N | 3.5 | 16.5 | 18.5 | 8.75 | 1651 | -14.6 |
| 18 | Kwak, Jeonghwan | 1548 | KOR | −4N | +45B | −7N | +50B | +34N | =17B | 3.5 | 15.0 | 15.0 | 4.75 | 1719 | +28.0 |
| 19 | Sung, Jaehyun | 1782 | KOR | =6N | +26B | =8N | −13B | +21N | −9B | 3.0 | 19.0 | 21.5 | 9.75 | 1621 | -16.2 |
| 20 | Kim, Jihoon | 0 | KOR | −11N | −3N | +51B | +36B | −9N | +33B | 3.0 | 16.5 | 16.5 | 4.00 | 1627 | 0.0 |
| 21 | Kwak, Joohwan | 1634 | KOR | +51B | −5N | +27B | =14N | −19B | =40N | 3.0 | 15.5 | 15.5 | 5.25 | 1536 | -17.5 |
| 22 | Min, Seokhee | 0 | KOR | −12N | +52B | +36N | −15B | +24B | −25N | 3.0 | 15.0 | 15.0 | 5.00 | 1583 | 0.0 |
| 23 | Lee, Kwanhoo | 1593 | KOR | −1N | +46B | −42N | +45B | −30N | +48B | 3.0 | 12.5 | 13.5 | 3.00 | 1057 | -16.0 |
| 24 | Park, Junhyeok | 1604 | KOR | +53N | −11B | +50N | −17B | −22N | +38B | 3.0 | 12.0 | 12.0 | 2.00 | 1004 | -19.6 |
| 25 | Lee, Ain | 1713 | KOR | F | F | F | +35B | +33N | +22B | 3.0 | 7.0 | 7.0 | 7.00 | 2334 | +10.8 |
| 26 | Son, Haseong | 1527 | KOR | −2B | −19N | +46B | =32N | +29B | −14N | 2.5 | 16.5 | 17.5 | 4.75 | 1597 | +13.2 |
| 27 | Lee, Jinho | 0 | KOR | −13N | +35B | −21N | +31B | =40B | −12N | 2.5 | 14.5 | 16.5 | 5.50 | 1323 | 0.0 |
| 28 | Kim, Minseung | 0 | KOR | −14B | =29N | +52B | −8B | +36N | −32N | 2.5 | 14.5 | 14.5 | 3.25 | 1580 | 0.0 |
| 29 | Moon, Jinseok | 1614 | KOR | −8N | =28B | −35N | +48B | −26N | +45B | 2.5 | 12.0 | 13.0 | 3.25 | 729 | -24.8 |
| 30 | Lee, Donghyun C | 1724 | KOR | F | F | F | +37N | +23B | =13B | 2.5 | 8.5 | 8.5 | 6.75 | 1827 | +7.6 |
| 31 | Kim, Hoshin | 0 | KOR | F | +51N | =44B | −27N | −32B | +39N | 2.5 | 8.5 | 8.5 | 2.75 | 1514 | 0.0 |
| 32 | Je, Jiwoo | 1748 | KOR | F | F | F | =26B | +31N | +28B | 2.5 | 7.5 | 7.5 | 6.25 | 1529 | -5.6 |
| 33 | Jang, Minki | 1551 | KOR | +3B | −14N | −2B | +39N | −25B | −20N | 2.0 | 19.5 | 21.5 | 7.00 | 1612 | +10.0 |
| 34 | Lee, Hwanseo | 1700 | KOR | +39B | +48N | −16B | −2N | −18B | F | 2.0 | 15.0 | 15.0 | 3.00 | 954 | -48.0 |
| 35 | Choi, Doeun | 0 | KOR | −5B | −27N | +29B | −25N | −39B | +47N | 2.0 | 14.5 | 15.5 | 3.50 | 1587 | 0.0 |
| 36 | Lee, Dahyeon | 1606 | KOR | +50B | −16N | −22B | −20N | −28B | +46N | 2.0 | 13.0 | 13.0 | 1.00 | 1021 | -8.8 |
| 37 | Hwang, Siwoo | 1416 | KOR | −7N | +47B | −17N | −30B | +50N | −41B | 2.0 | 13.0 | 13.0 | 1.00 | 973 | -15.6 |
| 38 | Choi, Hyunseo B | 0 | KOR | −17N | +53B | −13B | −40N | +46B | −24N | 2.0 | 13.0 | 13.0 | 1.00 | 879 | 0.0 |
| 39 | Kyeong, Soohyun | 0 | KOR | −34N | −49B | +47N | −33B | +35N | −31B | 2.0 | 9.5 | 10.5 | 3.00 | 792 | 0.0 |
| 40 | Lee, Chanhee | 1623 | KOR | F | F | F | +38B | =27N | =21B | 2.0 | 7.5 | 7.5 | 4.75 | 1633 | +0.4 |
| 41 | Park, Kun | 1764 | KOR | F | F | F | −6B | +45N | +37N | 2.0 | 7.5 | 7.5 | 3.00 | 2202 | +2.0 |
| 42 | Song, Youngho | 0 | KOR | +?N | −15B | +23B | F | F | F | 2.0 | 6.5 | 6.5 | 3.00 | 1651 | 0.0 |
| 43 | FIDE 13236539 | 0 | — | −15N | −?B | −45N | +47B | −48N | +50B | 2.0 | 6.5 | 6.5 | 1.00 | 852 | 0.0 |
| 44 | Kim, Dohyun D | 1663 | KOR | +45N | −4B | =31N | F | F | F | 1.5 | 8.0 | 8.0 | 2.25 | 1087 | -4.4 |
| 45 | Lee, Seowoo | 0 | KOR | −44B | −18N | +43B | −23N | −41B | −29N | 1.0 | 13.0 | 14.5 | 2.00 | 837 | 0.0 |
| 46 | FIDE 13236210 | 0 | — | −10B | −23N | −26N | +51B | −38N | −36B | 1.0 | 13.0 | 13.0 | 0.00 | 799 | 0.0 |
| 47 | FIDE 13236393 | 0 | — | −9B | −37N | −39B | −43N | +51N | −35B | 1.0 | 12.0 | 12.0 | 0.00 | 725 | 0.0 |
| 48 | Yu, Seokhyun | 0 | KOR | F | −34B | −?N | −29N | +43B | −23N | 1.0 | 9.5 | 9.5 | 2.00 | 819 | 0.0 |
| 49 | Yun, ChanKyu | 1565 | KOR | F | +39N | −3B | F | F | F | 1.0 | 7.0 | 7.0 | 2.00 | 1123 | -4.0 |
| 50 | Park, Siwon | 0 | KOR | −36N | F | −24B | −18N | −37B | −43N | 0.0 | 12.5 | 12.5 | 0.00 | 741 | 0.0 |
| 51 | FIDE 13233246 | 0 | — | −21N | −31B | −20N | −46N | −47B | F | 0.0 | 10.5 | 10.5 | 0.00 | 833 | 0.0 |
| 52 | Choi, Robin | 0 | KOR | −16B | −22N | −28N | F | F | F | 0.0 | 9.0 | 9.0 | 0.00 | 1021 | 0.0 |
| 53 | Seol, Yoohyun | 0 | KOR | −24B | −38N | F | F | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 805 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kwak, JeonghwanKOR+28.03.5 pts · #23
- 2Kim, YegeonKOR+27.25.0 pts · #6
- 3Yang, DongwooKOR+22.84.5 pts · #3
Top rating losers
- 1Lee, HwanseoKOR-48.02.0 pts · #52
- 2Moon, JinseokKOR-24.82.5 pts · #47
- 3Park, JunhyeokKOR-19.63.0 pts · #36
Biggest upsets
- R1+373 Elo gap
- R2+185 Elo gap
- R2+161 Elo gap