31st LSH Tournament
Open SwissStandard
17 players participated in this 6-round tournament, held from 15 Nov 2025 to 16 Nov 2025 in Seoul, South Korea. Top 10 Elo average was 1592, and top seed was Jiyu Hur (🇰🇷 KOR, 1733).
Jiyu Hur (🇰🇷 KOR, 1733) won with 4.5/6, ahead of Chabeen Park (4.5) and Joohwan Kwak (4.0). Hur shared the lead from round 1, winning on tie-break.
The biggest upset came in round 2: Siho Kim (1487) beat Wooseok Yun (1672), a +185-point gap.
Location
🇰🇷Seoul, South Korea
Dates
15 Nov 2025 → 16 Nov 2025
Time control
Standard: 60 minutes for game
System
Swiss · 6 rounds
Federations · 1 represented
🇰🇷South Korea×16
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTight race until R6; 2 players tied at 4.5/6, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Co-leaders
6
3
2
2
2
2
R6 · TIEBREAK CLUSTER
2 players finish on 4.5/6. Hur takes the title on Buchholz Cut1 (18.5).
R2 · HEAD-TO-HEAD · WINNER VS 2ND
Jiyu Hur beat Chabeen Park (White).
R1–R3 · WIN STREAK
Jiyu Hur won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Jiyu Hur | * | 1 | 1 | ½ |
| 2Chabeen Park | 0 | * | — | ½ |
| 3Yongsu Han | 0 | — | * | 1 |
| 4Joohwan Kwak | ½ | ½ | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Hur, Jiyu | 1733 | KOR | +8N | +2B | +4N | =3B | =5B | =6N | 4.5 | 18.5 | 21.0 | 16.00 | 1786 | +16.8 |
| 2 | Park, Chabeen | 1588 | KOR | +17B | −1N | +11B | +6N | =3N | +5B | 4.5 | 16.5 | 16.5 | 10.00 | 1723 | +28.8 |
| 3 | Kwak, Joohwan | 1528 | KOR | +14N | +5B | +7N | =1N | =2B | −4B | 4.0 | 19.0 | 20.0 | 11.50 | 1688 | +43.6 |
| 4 | Han, Yongsu | 1691 | KOR | +9B | +6N | −1B | −5N | +8B | +3N | 4.0 | 17.0 | 19.5 | 12.00 | 1705 | +2.8 |
| 5 | Jun, Sanghui | 1667 | KOR | +16B | −3N | =8B | +4B | =1N | −2N | 3.0 | 19.5 | 19.5 | 7.50 | 1534 | -36.0 |
| 6 | Han, Dohoon | 1590 | KOR | +11N | −4B | +14N | −2B | =7N | =1B | 3.0 | 18.0 | 19.0 | 6.75 | 1410 | -36.4 |
| 7 | Seo, Yerin | 1408 | KOR | =13B | +9N | −3B | =8N | =6B | =10N | 3.0 | 14.5 | 16.0 | 7.25 | 1536 | +41.2 |
| 8 | Kim, Siho | 1487 | KOR | −1B | +13N | =5N | =7B | −4N | =9B | 2.5 | 17.0 | 18.5 | 5.75 | 1548 | +12.0 |
| 9 | Kim, Geono | 1473 | KOR | −4N | −7B | −13B | +16N | +11B | =8N | 2.5 | 13.0 | 13.0 | 3.25 | 1242 | -41.2 |
| 10 | Lim, Jihyuk | 1461 | KOR | F | F | F | +12N | +15N | =7B | 2.5 | 6.0 | 6.0 | 4.50 | 1714 | +34.4 |
| 11 | Ki, Youngbin | 0 | KOR | −6B | +17N | −2N | −15B | −9N | +16B | 2.0 | 11.0 | 11.0 | 0.00 | 731 | 0.0 |
| 12 | Yang, Heewook | 1444 | KOR | F | F | F | −10B | +16B | +15N | 2.0 | 3.5 | 3.5 | 1.00 | 1476 | +4.0 |
| 13 | Yun, Wooseok | 1672 | KOR | =7N | −8B | +9N | F | F | F | 1.5 | 8.0 | 8.0 | 4.00 | 1458 | -30.4 |
| 14 | Lee, Jeongyeon | 0 | KOR | −3B | +16N | −6B | F | F | F | 1.0 | 7.0 | 7.0 | 0.00 | 757 | 0.0 |
| 15 | Yang, Jin | 1492 | KOR | F | F | F | +11N | −10B | −12B | 1.0 | 6.5 | 6.5 | 2.00 | 658 | -42.4 |
| 16 | Cho, Yihwan | 0 | KOR | −5N | −14B | F | −9B | −12N | −11N | 0.0 | 10.5 | 10.5 | 0.00 | 727 | 0.0 |
| 17 | FIDE 13235915 | 0 | — | −2N | −11B | F | F | F | F | 0.0 | 6.5 | 6.5 | 0.00 | 786 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kwak, JoohwanKOR+43.64.0 pts · #4
- 2Seo, YerinKOR+41.23.0 pts · #3
- 3Lim, JihyukKOR+34.42.5 pts · #7
Top rating losers
- 1Yang, JinKOR-42.41.0 pts · #16
- 2Kim, GeonoKOR-41.22.5 pts · #12
- 3Han, DohoonKOR-36.43.0 pts · #10
Biggest upsets
- R2+185 Elo gap
- R2+139 Elo gap