The 10th Open Vientiane Chess Standard
21 players participated in this 5-round tournament, held from 30 May 2026 to 31 May 2026 in Vientiane capital, Laos. 2 titled players. Top 10 Elo average was 914, and top seed was Chi Yang (🇱🇦 LAO, CM, 1723).
Maly Inthavong (🇱🇦 LAO, WCM, 1548) won with 4.5/5, ahead of SOUMINTA YOMVILATH (4.5). Inthavong shared the lead from round 1, winning on tie-break.
The biggest upset came in round 3: SOUMINTA YOMVILATH (1490) beat Chi Yang (CM, 1723), a +233-point gap.
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How it unfolded
Top 6 · 5 roundsTight race until R5; 3 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
3 players finish on 4.5/5. Inthavong takes the title on Buchholz Cut1 (13.5).
FIDE 17702879 4 wins (R2–R5)WCM Maly Inthavong 4 wins (R1–R4)SOUMINTA YOMVILATH 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FIDE 17702879 | * | — | — | — |
| 2WCMMaly Inthavong | — | * | ½ | — |
| 3SOUMINTA YOMVILATH | — | ½ | * | — |
| 4FIDE 17702976 | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Maly InthavongWCM | 1548 | LAO | +18N | +8B | +6N | +7B | =2N | 4.5 | 13.5 | 15.5 | 13.25 | 1759 | +29.6 |
| 2 | YOMVILATH, SOUMINTA | 1490 | LAO | +16N | +13B | +14N | +11B | =1B | 4.5 | 11.5 | 13.5 | 11.25 | 1829 | +34.8 |
| 3 | FIDE 17702879 | 0 | — | =5N | +?B | +?N | +14B | +6N | 4.5 | 8.5 | 8.5 | 6.75 | 1591 | 0.0 |
| 4 | FIDE 17702976 | 0 | — | +?N | −14B | +16N | +15B | +7N | 4.0 | 9.0 | 9.0 | 7.00 | 1578 | 0.0 |
| 5 | NGUYEN, SUNJON KAYDEN | 1405 | LAO | =3B | +10N | −7B | +12N | +11N | 3.5 | 13.0 | 15.5 | 10.25 | 633 | -18.4 |
| 6 | Viphommavongsa, Onanong | 1536 | LAO | +12B | +17N | −1B | +9N | −3B | 3.0 | 14.5 | 16.5 | 7.50 | 748 | -19.2 |
| 7 | SENGPHACHAN, BOUNTHENGNOY | 1433 | LAO | +20N | +15B | +5N | −1N | −4B | 3.0 | 14.0 | 15.0 | 6.50 | 1477 | +4.8 |
| 8 | FIDE 343467865 | 0 | — | +?B | −1N | −11B | +17N | +15B | 3.0 | 11.0 | 11.0 | 4.00 | 748 | 0.0 |
| 9 | FIDE 17702321 | 0 | — | −11B | +19N | +17B | −6B | +14N | 3.0 | 9.5 | 11.5 | 6.00 | 1630 | 0.0 |
| 10 | FIDE 17702887 | 0 | — | −15N | −5B | +20N | +?B | +18N | 3.0 | 8.5 | 8.5 | 3.00 | 605 | 0.0 |
| 11 | FIDE 17702984 | 0 | — | +9N | =?B | +8N | −2N | −5B | 2.5 | 14.0 | 14.0 | 6.00 | 1179 | 0.0 |
| 12 | FIDE 17702992 | 0 | — | −6N | +20B | =13N | −5B | +16N | 2.5 | 11.0 | 12.0 | 4.25 | 671 | 0.0 |
| 13 | FIDE 17702496 | 0 | — | +?B | −2N | =12B | +19N | −?B | 2.5 | 9.0 | 9.0 | 3.25 | 676 | 0.0 |
| 14 | Chi YangCM | 1723 | LAO | +21B | +4N | −2B | −3N | −9B | 2.0 | 16.0 | 17.0 | 5.00 | 690 | -31.6 |
| 15 | FIDE 17702968 | 0 | — | +10B | −7N | +21B | −4N | −8N | 2.0 | 13.0 | 14.0 | 4.00 | 633 | 0.0 |
| 16 | FIDE 17702925 | 0 | — | −2B | +21N | −4B | +?N | −12B | 2.0 | 12.0 | 12.0 | 1.00 | 690 | 0.0 |
| 17 | FIDE 17702950 | 0 | — | +?N | −6B | −9N | −8B | +21B | 2.0 | 10.0 | 10.0 | 1.00 | 736 | 0.0 |
| 18 | FIDE 17703000 | 0 | — | −1B | +?N | +?B | −?N | −10B | 2.0 | 7.5 | 7.5 | 0.00 | 705 | 0.0 |
| 19 | FIDE 17702909 | 0 | — | −?N | −9B | +?N | −13B | +?B | 2.0 | 5.5 | 5.5 | 0.00 | 661 | 0.0 |
| 20 | FIDE 17702852 | 0 | — | −7B | −12N | −10B | F | +?N | 1.0 | 8.5 | 8.5 | 0.00 | 633 | 0.0 |
| 21 | FIDE 17702941 | 0 | — | −14N | −16B | −15N | +?B | −17N | 1.0 | 8.0 | 8.0 | 0.00 | 923 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1YOMVILATH, SOUMINTALAO+34.84.5 pts · #3
- 2Maly InthavongWCMLAO+29.64.5 pts · #2
- 3SENGPHACHAN, BOUNTHENGNOYLAO+4.83.0 pts · #4
- 1Chi YangCMLAO-31.62.0 pts · #10
- 2Viphommavongsa, OnanongLAO-19.23.0 pts · #16
- 3NGUYEN, SUNJON KAYDENLAO-18.43.5 pts · #17
- R3+233 Elo gap