10th Queen's
Open SwissStandard
37 players participated in this 4-round tournament, held on 20 Jul 2025 in Seongnam, South Korea. Top 10 Elo average was 1643, and top seed was Keonwoo Kim (🇰🇷 KOR, 1773).
Yubin Kim (🇰🇷 KOR, 1672) won with 4.0/4, ahead of Munseok Yang (4.0) and Jiwon Kang (3.5). Kim shared the lead from round 1, winning on tie-break.
The biggest upset came in round 2: Taehyun Ahn (1492) beat Joonsang Jang (1620), a +128-point gap.
Location
🇰🇷Seongnam, South Korea
Dates
20 Jul 2025
Time control
Standard: All Moves in 55 Min. 5 Sec. / /
System
Swiss · 4 rounds
Federations · 1 represented
🇰🇷South Korea×34
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsTight race until R4; 2 players tied at 4.0/4, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Co-leaders
17
9
4
2
R4 · TIEBREAK CLUSTER
2 players finish on 4.0/4. Kim takes the title on Buchholz Cut1 (8.5).
WIN STREAKS · 2 top finishers
Munseok Yang 4 wins (R1–R4)Yubin Kim 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Munseok Yang | * | — | — | — |
| 2Yubin Kim | — | * | — | — |
| 3Jiwon Kang | — | — | * | ½ |
| 4Keonwoo Kim | — | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kim, Yubin | 1672 | KOR | +11B | +19N | +7B | +5N | 4.0 | 8.5 | 10.5 | 10.50 | 2318 | +23.6 |
| 2 | Yang, Munseok | 1770 | KOR | +29N | +8B | +15N | +6B | 4.0 | 8.0 | 9.0 | 9.00 | 2408 | +17.2 |
| 3 | Kang, Jiwon | 1616 | KOR | +28N | +32B | =4N | +15B | 3.5 | 6.0 | 7.0 | 5.50 | 1896 | +41.6 |
| 4 | Kim, Keonwoo | 1773 | KOR | +30B | +13N | =3B | =9N | 3.0 | 9.0 | 10.0 | 6.75 | 1739 | -4.4 |
| 5 | Ahn, Taehyun | 1492 | KOR | +12N | +16B | +24N | −1B | 3.0 | 8.5 | 10.0 | 6.00 | 1646 | +16.8 |
| 6 | Jun, Sanghui | 1653 | KOR | +18N | +31B | +17N | −2N | 3.0 | 8.0 | 9.0 | 5.00 | 1747 | +14.8 |
| 7 | Choi, Mingyu | 0 | KOR | +?N | +25B | −1N | +17B | 3.0 | 7.5 | 7.5 | 3.50 | 1595 | 0.0 |
| 8 | Yang, Junseo | 1563 | KOR | +35B | −2N | +30B | +20N | 3.0 | 7.0 | 7.0 | 3.00 | 1609 | +4.4 |
| 9 | Kim, Gyubeen | 1562 | KOR | =24N | +33B | +16N | =4B | 3.0 | 6.5 | 7.5 | 5.25 | 1919 | +53.2 |
| 10 | Lim, Siheon | 1473 | KOR | +26N | −15B | +28N | +18B | 3.0 | 5.5 | 6.5 | 4.50 | 811 | -12.4 |
| 11 | Choi, Yeonwook | 0 | KOR | −1N | +22B | +31N | =13N | 2.5 | 8.5 | 9.5 | 4.25 | 1583 | 0.0 |
| 12 | Park, Geonwoo | 0 | KOR | −5B | =14N | +21B | +24B | 2.5 | 7.5 | 9.0 | 4.75 | 688 | 0.0 |
| 13 | Han, Jaejun | 1567 | KOR | +37N | −4B | +29N | =11B | 2.5 | 6.5 | 6.5 | 2.25 | 971 | -9.6 |
| 14 | FIDE 13234641 | 0 | — | −16N | =12B | +25N | +26B | 2.5 | 6.0 | 7.5 | 4.25 | 821 | 0.0 |
| 15 | Lee, Juhwan | 1613 | KOR | +34B | +10N | −2B | −3N | 2.0 | 10.5 | 11.0 | 3.50 | 1493 | -19.2 |
| 16 | Jang, Joonsang | 1620 | KOR | +14B | −5N | −9B | +29N | 2.0 | 8.5 | 9.5 | 3.50 | 724 | -50.4 |
| 17 | Lee, Kangin | 1583 | KOR | +20B | +21N | −6B | −7N | 2.0 | 8.0 | 10.0 | 4.00 | 852 | -16.0 |
| 18 | Jang, Woonam | 0 | KOR | −6B | +27N | +19B | −10N | 2.0 | 8.0 | 9.5 | 3.50 | 1432 | 0.0 |
| 19 | Shin, Dongeun | 1540 | KOR | +22N | −1B | −18N | +28B | 2.0 | 8.0 | 9.0 | 3.00 | 871 | -13.2 |
| 20 | Kim, Inha | 0 | KOR | −17N | +?B | +32N | −8B | 2.0 | 6.0 | 6.0 | 1.00 | 1526 | 0.0 |
| 21 | Lee, Hyeongyu | 0 | KOR | +33N | −17B | −12N | +31B | 2.0 | 5.5 | 6.5 | 2.00 | 1567 | 0.0 |
| 22 | Lee, Sion | 0 | KOR | −19B | −11N | +36B | +32B | 2.0 | 5.5 | 5.5 | 1.00 | 1518 | 0.0 |
| 23 | Seo, Hyunwoo | 0 | KOR | F | F | +35B | +30N | 2.0 | 1.0 | 1.0 | 1.00 | 1467 | 0.0 |
| 24 | Kong, Youngkun | 0 | KOR | =9B | +?N | −5B | −12N | 1.5 | 8.5 | 8.5 | 1.50 | 1551 | 0.0 |
| 25 | Kim, Hyun | 0 | KOR | =?B | −7N | −14B | +34N | 1.5 | 6.0 | 6.0 | 0.50 | 1604 | 0.0 |
| 26 | Park, Jihun A | 0 | KOR | −10B | =34N | +?B | −14N | 1.5 | 6.0 | 6.0 | 0.25 | 1539 | 0.0 |
| 27 | Lim, Yunhu | 0 | KOR | −31N | −18B | +33N | =?B | 1.5 | 4.0 | 4.0 | 1.00 | 1509 | 0.0 |
| 28 | Jeong, Eunchae | 0 | KOR | −3B | +36N | −10B | −19N | 1.0 | 8.5 | 8.5 | 0.00 | 744 | 0.0 |
| 29 | Cho, Yihwan | 0 | KOR | −2B | +35N | −13B | −16B | 1.0 | 8.5 | 8.5 | 0.00 | 852 | 0.0 |
| 30 | Choi, Jungho | 1455 | KOR | −4N | +37B | −8N | −23B | 1.0 | 8.0 | 8.0 | 0.00 | 867 | -18.8 |
| 31 | Son, Sanghyun | 1513 | KOR | +27B | −6N | −11B | −21N | 1.0 | 7.5 | 9.0 | 1.50 | 852 | -12.4 |
| 32 | Choi, Gyungsook | 1489 | KOR | +36B | −3N | −20B | −22N | 1.0 | 7.5 | 7.5 | 0.00 | 811 | -6.6 |
| 33 | Lee, Geonmin | 1545 | KOR | −21B | −9N | −27B | +36N | 1.0 | 6.5 | 6.5 | 0.00 | 760 | -19.2 |
| 34 | Kim, Choi | 0 | KOR | −15N | =26B | −?N | −25B | 0.5 | 5.0 | 5.0 | 0.75 | 741 | 0.0 |
| 35 | FIDE 13229648 | 0 | — | −8N | −29B | −23N | −?N | 0.0 | 6.0 | 6.0 | 0.00 | 783 | 0.0 |
| 36 | FIDE 13234560 | 0 | — | −32N | −28B | −22N | −33B | 0.0 | 4.0 | 5.0 | 0.00 | 717 | 0.0 |
| 37 | Kim, Jessica Jiyeon | 0 | KOR | −13B | −30N | F | F | 0.0 | 3.5 | 3.5 | 0.00 | 707 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kim, GyubeenKOR+53.23.0 pts · #4
- 2Kang, JiwonKOR+41.63.5 pts · #3
- 3Kim, YubinKOR+23.64.0 pts · #9
Top rating losers
- 1Jang, JoonsangKOR-50.42.0 pts · #27
- 2Lee, JuhwanKOR-19.22.0 pts · #18
- 3Lee, GeonminKOR-19.21.0 pts · #28
Biggest upsets
- R2+128 Elo gap