The 4th Vientiane Open FIDE Rated
Open SwissStandard
16 players participated in this 5-round tournament, held from 21 Jun 2025 to 22 Jun 2025 in Vientiane capital, Laos. Top 10 Elo average was 458, and top seed was Khonsavanh Senglek (🇱🇦 LAO, 1608).
Khonsavanh Senglek (🇱🇦 LAO, 1608) won with 5.0/5, ahead of SUNJON KAYDEN NGUYEN (4.0). Senglek broke clear in the final round.
Location
🇱🇦Vientiane capital, Laos
Dates
21 Jun 2025 → 22 Jun 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇱🇦Laos×9
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsKhonsavanh Senglek led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
13
7
3
2
1
R5–R5 · LEAD HELD
Khonsavanh Senglek never relinquished the lead after R5; final gap +1.0 over the runner-up.
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Khonsavanh Senglek beat FIDE 17702640 (Black).
WIN STREAKS · 2 top finishers
Khonsavanh Senglek 5 wins (R1–R5)SUNJON KAYDEN NGUYEN 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Khonsavanh Senglek | * | 1 | 1 | — |
| 2FIDE 17702640 | 0 | * | — | 1 |
| 3SUNJON KAYDEN NGUYEN | 0 | — | * | — |
| 4Herald Wayne Fresco Maglacion | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Senglek, Khonsavanh | 1608 | LAO | +6N | +5B | +3N | +4B | +2N | 5.0 | 15.0 | 18.5 | 18.50 | 2286 | +13.4 |
| 2 | NGUYEN, SUNJON KAYDEN | 1456 | LAO | +9N | +14B | +11N | +12B | −1B | 4.0 | 13.0 | 15.0 | 10.00 | 808 | -12.0 |
| 3 | FIDE 17702640 | 0 | — | +?N | +8B | −1B | +7N | +?N | 4.0 | 12.0 | 12.0 | 7.00 | 808 | 0.0 |
| 4 | YOMVILATH, SOUMINTA | 1517 | LAO | +13B | +16N | +10B | −1N | =5B | 3.5 | 14.0 | 15.0 | 8.25 | 808 | -14.8 |
| 5 | JOSHUA JEDIDIAH,BEJO | 0 | LAO | +?B | −1N | +13B | +9N | =4N | 3.5 | 14.0 | 14.0 | 7.25 | 1369 | 0.0 |
| 6 | MANALO, SEAN MICHAEL | 0 | LAO | −1B | +?N | +?N | =?B | +11N | 3.5 | 7.5 | 7.5 | 2.50 | 1322 | 0.0 |
| 7 | SUELO, RYZIA LEI ZHEYSHA | 0 | LAO | +?N | +?B | =?N | −3B | +12N | 3.5 | 6.5 | 6.5 | 2.50 | 1422 | 0.0 |
| 8 | Maglacion, Herald Wayne Fresco | 0 | LAO | +?N | −3N | +?B | =11B | +?N | 3.5 | 6.5 | 6.5 | 1.25 | 1442 | 0.0 |
| 9 | FIDE 17702356 | 0 | — | −2B | +?N | +14N | −5B | +?N | 3.0 | 9.5 | 9.5 | 2.00 | 656 | 0.0 |
| 10 | FIDE 343467865 | 0 | — | +?N | +?B | −4N | −?B | +?N | 3.0 | 3.5 | 3.5 | 0.00 | 715 | 0.0 |
| 11 | SENGPHACHAN, BOUNTHENGNOY | 0 | LAO | +15N | +?B | −2B | =8N | −6B | 2.5 | 12.5 | 12.5 | 3.25 | 656 | 0.0 |
| 12 | FIDE 17701732 | 0 | — | =?N | +?B | +?N | −2N | −7B | 2.5 | 7.5 | 7.5 | 0.00 | 1246 | 0.0 |
| 13 | MANICHITH, NAMPHET | 0 | LAO | −4N | +?B | −5N | +?B | =?B | 2.5 | 7.0 | 7.0 | 0.00 | 715 | 0.0 |
| 14 | FIDE 17702321 | 0 | — | +?N | −2N | −9B | +?B | −?N | 2.0 | 7.0 | 7.0 | 0.00 | 656 | 0.0 |
| 15 | FIDE 17701759 | 0 | — | −11B | −?B | −?N | +?B | =?N | 1.5 | 2.5 | 2.5 | 0.00 | 622 | 0.0 |
| 16 | FIDE 17702518 | 0 | — | +?N | −4B | −?N | −?B | −?B | 1.0 | 3.5 | 3.5 | 0.00 | 715 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Senglek, KhonsavanhLAO+13.45.0 pts · #1
- 2FIDE 177017320.02.5 pts · #4
- 3Maglacion, Herald Wayne FrescoLAO0.03.5 pts · #2
Top rating losers
- 1YOMVILATH, SOUMINTALAO-14.83.5 pts · #15
- 2NGUYEN, SUNJON KAYDENLAO-12.04.0 pts · #13
- 3FIDE 177017320.02.5 pts · #4