Songdo International Open - B
Open SwissStandard
41 players participated in this 6-round tournament, held from 23 May 2026 to 24 May 2026 in Incheon, South Korea. 3 federations represented. Top 10 Elo average was 1536, and top seed was Hyowon Kim (🇰🇷 KOR, 1589).
The biggest upset came in round 4: Wooju Mo (1425) beat Simon Engel (1567), a +142-point gap.
Location
🇰🇷Incheon, South Korea
Dates
23 May 2026 → 24 May 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Federations · 3 represented
🇰🇷South Korea×14
🇯🇵Japan×1
🇩🇪Germany×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsFIDE 382111374 led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.
Co-leaders
25
11
6
3
1
1
R5–R6 · LEAD HELD
FIDE 382111374 held the sole lead from R5 through R6 without losing it.
R5 · HEAD-TO-HEAD · WINNER VS 2ND
FIDE 382111374 beat FIDE 14258005 (Black).
WIN STREAKS · 3 top finishers
FIDE 382111374 5 wins (R1–R5)FIDE 14258005 4 wins (R1–R4)FIDE 13242660 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FIDE 382111374 | * | 1 | — | ½ |
| 2FIDE 14258005 | 0 | * | — | — |
| 3FIDE 13242660 | — | — | * | 0 |
| 4Wooju Mo | ½ | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FIDE 382111374 | 0 | — | +22N | +16B | +?N | +6B | +5N | =2N | 5.5 | 21.0 | 21.0 | 18.50 | 1557 | 0.0 |
| 2 | Mo, Wooju | 1425 | KOR | =31B | +11N | +19B | +21N | +3N | =1B | 5.0 | 21.0 | 23.5 | 19.50 | 2314 | +49.6 |
| 3 | FIDE 13242660 | 0 | — | +?B | +?N | +7B | +8N | −2B | +9B | 5.0 | 17.5 | 17.5 | 12.50 | 1563 | 0.0 |
| 4 | Park, Jaemin A | 1479 | KOR | −32B | +38N | +22B | +10N | +8B | +14N | 5.0 | 17.0 | 18.5 | 16.00 | 2374 | +50.4 |
| 5 | FIDE 14258005 | 0 | — | +?B | +12N | +21B | +14N | −1B | +?B | 5.0 | 16.0 | 16.0 | 10.50 | 1637 | 0.0 |
| 6 | Seo, Pureum | 1552 | KOR | +40B | +25N | +10B | −1N | =14B | +16N | 4.5 | 19.5 | 20.5 | 13.25 | 1589 | +2.0 |
| 7 | Park, Siwoo D | 1543 | KOR | +38N | +26B | −3N | =15B | +23N | +17B | 4.5 | 18.0 | 19.5 | 12.75 | 2336 | +19.6 |
| 8 | Kim, Minwoo | 1558 | KOR | +23N | +29B | +33N | −3B | −4N | +15B | 4.0 | 19.5 | 22.0 | 12.00 | 679 | -24.4 |
| 9 | Kim, Siho | 1566 | KOR | −26B | +18N | +32B | +30N | +12B | −3N | 4.0 | 18.5 | 21.0 | 13.00 | 2309 | +16.8 |
| 10 | FIDE 13242709 | 0 | — | +?N | +?B | −6N | −4B | +34N | +30N | 4.0 | 14.5 | 14.5 | 5.00 | 716 | 0.0 |
| 11 | Watanabe, Takaharu | 0 | JPN | +37N | −2B | −15N | +?B | +?N | +23B | 4.0 | 13.0 | 13.0 | 4.50 | 625 | 0.0 |
| 12 | FIDE 13239481 | 0 | — | +39N | −5B | +?N | +?B | −9N | +24B | 4.0 | 13.0 | 13.0 | 4.00 | 766 | 0.0 |
| 13 | FIDE 13214519 | 0 | — | −?N | +41B | +24N | −?B | +?N | +25N | 4.0 | 6.0 | 6.0 | 6.00 | 775 | 0.0 |
| 14 | Kim, Hyowon | 1589 | KOR | +41N | +28B | +17N | −5B | =6N | −4B | 3.5 | 21.0 | 21.0 | 8.75 | 1522 | -10.8 |
| 15 | FIDE 13242580 | 0 | — | −21B | +?N | +11B | =7N | +18B | −8N | 3.5 | 19.0 | 19.0 | 9.75 | 1457 | 0.0 |
| 16 | FIDE 13235621 | 0 | — | +?N | −1N | +?B | =17B | +20N | −6B | 3.5 | 17.0 | 17.0 | 5.25 | 1351 | 0.0 |
| 17 | Oh, Jeongyun | 1536 | KOR | +35B | +32N | −14B | =16N | +31B | −7N | 3.5 | 16.5 | 18.5 | 8.75 | 766 | -36.8 |
| 18 | Kim, Onyu | 1509 | KOR | =20N | −9B | +39N | +27B | −15N | +33B | 3.5 | 16.5 | 17.5 | 8.25 | 766 | -16.8 |
| 19 | Jea, Daeul | 1460 | KOR | +34N | =33B | −2N | −20B | +37N | +31B | 3.5 | 15.5 | 17.0 | 7.25 | 625 | -22.0 |
| 20 | FIDE 13217160 | 0 | — | =18B | −31N | +?B | +19N | −16B | +?N | 3.5 | 13.0 | 13.0 | 5.25 | 1505 | 0.0 |
| 21 | Engel, Simon | 1567 | GER | +15N | +24B | −5N | −2B | −22N | +34B | 3.0 | 19.5 | 21.5 | 8.50 | 625 | -27.6 |
| 22 | FIDE 13231308 | 0 | — | −1B | +39B | −4N | +28N | +21B | −?N | 3.0 | 17.5 | 17.5 | 7.00 | 1523 | 0.0 |
| 23 | FIDE 13242350 | 0 | — | −8B | +?N | +36B | +?N | −7B | −11N | 3.0 | 14.5 | 14.5 | 2.00 | 751 | 0.0 |
| 24 | FIDE 13238264 | 0 | — | +?B | −21N | −13B | +26N | +?B | −12N | 3.0 | 14.0 | 14.0 | 3.00 | 767 | 0.0 |
| 25 | FIDE 13239953 | 0 | — | +?N | −6B | −34N | +?B | +27N | −13B | 3.0 | 13.5 | 13.5 | 3.00 | 752 | 0.0 |
| 26 | FIDE 13237497 | 0 | — | +9N | −7N | −?B | −24B | +39N | +?B | 3.0 | 12.5 | 12.5 | 5.00 | 1555 | 0.0 |
| 27 | FIDE 13225650 | 0 | — | −?B | +37B | +28N | −18N | −25B | +?N | 3.0 | 11.0 | 11.0 | 4.50 | 709 | 0.0 |
| 28 | FIDE 13237861 | 0 | — | +?N | −14N | −27B | −22B | +40N | +?B | 3.0 | 10.5 | 10.5 | 1.00 | 789 | 0.0 |
| 29 | Jang, Geonho | 0 | KOR | +?N | −8N | +31B | +34B | −?N | F | 3.0 | 8.5 | 8.5 | 4.50 | 767 | 0.0 |
| 30 | FIDE 13238256 | 0 | — | −?N | +?B | +?N | −9B | +?N | −10B | 3.0 | 8.0 | 8.0 | 0.00 | 771 | 0.0 |
| 31 | Lee, Yonghwan | 0 | KOR | =2N | +20B | −29N | +33B | −17N | −19N | 2.5 | 18.5 | 21.0 | 8.50 | 1201 | 0.0 |
| 32 | Lee, Juwon C | 0 | KOR | +4N | −17B | −9N | =37B | −33N | +39B | 2.5 | 16.5 | 17.5 | 6.75 | 1402 | 0.0 |
| 33 | Park, Halyn | 0 | KOR | +?B | =19N | −8B | −31N | +32B | −18N | 2.5 | 16.0 | 16.0 | 4.25 | 1236 | 0.0 |
| 34 | FIDE 13239520 | 0 | — | −19B | +?N | +25B | −29N | −10B | −21N | 2.0 | 16.5 | 16.5 | 3.00 | 714 | 0.0 |
| 35 | FIDE 13240358 | 0 | — | −17N | −?B | −?N | −39B | +41N | +37B | 2.0 | 6.0 | 6.0 | 1.50 | 736 | 0.0 |
| 36 | FIDE 13240978 | 0 | — | +?N | −?B | −23N | −?B | +?N | −?B | 2.0 | 3.0 | 3.0 | 0.00 | 775 | 0.0 |
| 37 | FIDE 13240331 | 0 | — | −11B | −27N | +?B | =32N | −19B | −35N | 1.5 | 15.0 | 15.0 | 1.25 | 660 | 0.0 |
| 38 | FIDE 13240340 | 0 | — | −7B | −4B | −?N | −?N | =?B | +?B | 1.5 | 9.5 | 9.5 | 0.00 | 711 | 0.0 |
| 39 | FIDE 13240986 | 0 | — | −12B | −22N | −18B | +35N | −26B | −32N | 1.0 | 16.0 | 18.0 | 2.00 | 709 | 0.0 |
| 40 | FIDE 13242385 | 0 | — | −6N | −?B | +?N | −?B | −28B | −?N | 1.0 | 7.5 | 7.5 | 0.00 | 752 | 0.0 |
| 41 | FIDE 13240781 | 0 | — | −14B | −13N | −?B | −?N | −35B | F | 0.0 | 9.5 | 9.5 | 0.00 | 789 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Park, Jaemin AKOR+50.45.0 pts · #5
- 2Mo, WoojuKOR+49.65.0 pts · #4
- 3Park, Siwoo DKOR+19.64.5 pts · #12
Top rating losers
- 1Oh, JeongyunKOR-36.83.5 pts · #26
- 2Engel, SimonGER-27.63.0 pts · #38
- 3Kim, MinwooKOR-24.44.0 pts · #23
Biggest upsets
- R4+142 Elo gap
- R6+110 Elo gap