30th LSH Tournament
Open SwissStandard
19 players participated in this 6-round tournament, held from 11 Oct 2025 to 12 Oct 2025 in Seoul, South Korea. Top 10 Elo average was 1643, and top seed was Yongsu Han (🇰🇷 KOR, 1718).
Michid Jargalsaikhan (🇰🇷 KOR, 1662) won with 5.0/6, ahead of Hyunbin Choi (4.5) and Woonam Jang (4.0). Jargalsaikhan shared the lead from round 5 and broke clear in the final round.
The biggest upset came in round 1: Chabeen Park (1522) beat Yongsu Han (1718), a +196-point gap.
Location
🇰🇷Seoul, South Korea
Dates
11 Oct 2025 → 12 Oct 2025
Time control
Standard: 60 minutes for game
System
Swiss · 6 rounds
Federations · 1 represented
🇰🇷South Korea×18
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsMichid Jargalsaikhan led from R6; +0.5-point edge over the runner-up.
Co-leaders
8
4
1
1
2
1
R4 · LEADER CHANGE12 Oct
Hyunbin Choi takes the sole lead (3.5/4).
WIN STREAKS · 2 top finishers
Michid Jargalsaikhan 4 wins (R3–R6)Chabeen Park 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Michid Jargalsaikhan | * | — | — | 1 |
| 2Hyunbin Choi | — | * | — | 0 |
| 3Chabeen Park | — | — | * | — |
| 4Eunhak Lee | 0 | 1 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Michid Jargalsaikhan | 1662 | KOR | +12N | −10B | +7N | +6B | +3N | +4B | 5.0 | 16.5 | 18.5 | 16.00 | 2386 | +40.2 |
| 2 | Choi, Hyunbin | 1685 | KOR | +7N | +11B | =10N | +3B | −4N | +8B | 4.5 | 16.5 | 18.5 | 13.25 | 1873 | +23.4 |
| 3 | Jang, Woonam | 1648 | KOR | +13B | +5N | +4B | −2N | −1B | +6N | 4.0 | 20.5 | 22.5 | 13.00 | 1711 | +18.8 |
| 4 | Lee, Eunhak | 1645 | KOR | +18N | +6B | −3N | +8B | +2B | −1N | 4.0 | 19.5 | 20.5 | 11.50 | 1747 | +24.4 |
| 5 | Park, Chabeen | 1522 | KOR | +8N | −3B | −6N | +12B | +11N | +7B | 4.0 | 15.0 | 17.0 | 10.00 | 1728 | +67.6 |
| 6 | Kim, Jaeha | 1676 | KOR | +9B | −4N | +5B | −1N | +16N | −3B | 3.0 | 20.0 | 21.5 | 8.50 | 1571 | -26.7 |
| 7 | Jeong, Seowon | 1510 | KOR | −2B | +14N | −1B | +9N | +17B | −5N | 3.0 | 18.5 | 19.5 | 6.00 | 1508 | -1.2 |
| 8 | Han, Yongsu | 1718 | KOR | −5B | +13N | +9B | −4N | +15B | −2N | 3.0 | 17.5 | 19.0 | 6.50 | 1521 | -25.8 |
| 9 | Kim, Geono | 1464 | KOR | −6N | +18B | −8N | −7B | +13N | +11B | 3.0 | 13.0 | 14.0 | 5.00 | 1440 | -1.6 |
| 10 | Song, Youngho | 0 | KOR | +17B | +1N | =2B | F | F | F | 2.5 | 10.5 | 10.5 | 8.25 | 1686 | 0.0 |
| 11 | Kwak, Joohwan | 1634 | KOR | +14B | −2N | +12B | −15N | −5B | −9N | 2.0 | 15.5 | 17.0 | 4.00 | 1310 | -71.8 |
| 12 | Seo, Yerin | 1453 | KOR | −1B | +17B | −11N | −5N | −14B | +19N | 2.0 | 14.0 | 14.0 | 1.00 | 1409 | -6.8 |
| 13 | Kim, Hoshin | 0 | KOR | −3N | −8B | −18N | +?B | −9B | +17N | 2.0 | 12.0 | 12.0 | 1.00 | 1494 | 0.0 |
| 14 | Park, Chaehyun | 0 | KOR | −11N | −7B | −17N | +19B | +12N | −?B | 2.0 | 8.0 | 8.0 | 2.00 | 1283 | 0.0 |
| 15 | Bae, Jaemin | 1670 | KOR | F | F | F | +11B | −8N | =16B | 1.5 | 6.5 | 6.5 | 2.75 | 1616 | -7.6 |
| 16 | Ahn, Junmin | 1505 | KOR | F | F | F | +17N | −6B | =15N | 1.5 | 5.5 | 5.5 | 1.75 | 1644 | +23.2 |
| 17 | Park, Junewoo | 1571 | KOR | −10N | −12N | +14B | −16B | −7N | −13B | 1.0 | 11.5 | 13.0 | 2.00 | 684 | -78.0 |
| 18 | Oh, Junu | 0 | KOR | −4B | −9N | +13B | F | F | F | 1.0 | 9.0 | 9.0 | 2.00 | 751 | 0.0 |
| 19 | FIDE 13230719 | 0 | — | F | F | F | −14N | −?N | −12B | 0.0 | 4.0 | 4.0 | 0.00 | 638 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Park, ChabeenKOR+67.64.0 pts · #2
- 2Michid JargalsaikhanKOR+40.25.0 pts · #1
- 3Lee, EunhakKOR+24.44.0 pts · #4
Top rating losers
- 1Park, JunewooKOR-78.01.0 pts · #19
- 2Kwak, JoohwanKOR-71.82.0 pts · #13
- 3Kim, JaehaKOR-26.73.0 pts · #5
Biggest upsets
- R1+196 Elo gap
- R6+170 Elo gap
- R2+118 Elo gap