21st Thailand Junior Chess Championship 2026 - G18
Open SwissStandard
14 players participated in this 9-round tournament, held from 10 Apr 2026 to 14 Apr 2026 in Nonthaburi, Thailand. Top 10 Elo average was 1404, and top seed was Sasinat Tawankanjana (🇹🇠THA, 1762).
Sasinat Tawankanjana (🇹🇠THA, 1762) won with 8.5/9, ahead of Sirin Bootsumran (7.0) and Orachaporn Junput (6.5). Tawankanjana won solo starting round 4.
Location
🇹ðŸ‡Nonthaburi, Thailand
Dates
10 Apr 2026 → 14 Apr 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Federations · 1 represented
🇹ðŸ‡Thailand×13
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsSasinat Tawankanjana led from R4; +1.5-point edge over the runner-up.
Co-leaders
7
4
2
1
1
1
1
1
1
R4–R9 · LEAD HELD
Sasinat Tawankanjana never relinquished the lead after R4; final gap +1.5 over the runner-up.
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Sasinat Tawankanjana beat Sirin Bootsumran (Black).
WIN STREAKS · 2 top finishers
Sasinat Tawankanjana 4+4 wins (R1–R4, R6–R9)Sirin Bootsumran 3+3 wins (R1–R3, R7–R9)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Sasinat Tawankanjana | * | 1 | 1 | 1 |
| 2Sirin Bootsumran | 0 | * | ½ | 1 |
| 3Orachaporn Junput | 0 | ½ | * | 1 |
| 4Natchanan Laoaraya | 0 | 0 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Tawankanjana, Sasinat | 1762 | THA | +13B | +3N | +5B | +2N | =6B | +7N | +4B | +8N | +9B | 8.5 | 40.5 | 42.0 | 39.75 | 1938 | +40.0 |
| 2 | Bootsumran, Sirin | 1756 | THA | +6N | +4B | +9N | −1B | =3B | =5N | +7B | +10N | +11N | 7.0 | 40.5 | 43.0 | 28.75 | 1672 | -20.0 |
| 3 | Junput, Orachaporn | 1513 | THA | +7B | −1B | +4N | +9B | =2N | +6N | =8B | =5N | +12B | 6.5 | 42.5 | 44.5 | 27.75 | 1712 | +61.6 |
| 4 | Laoaraya, Natchanan | 1486 | THA | +14B | −2N | −3B | +12N | +8N | +9B | −1N | +6B | =5B | 5.5 | 41.0 | 41.0 | 16.50 | 1539 | +20.4 |
| 5 | Chinkulkitniwat, Purichaya | 1638 | THA | +11B | +8N | −1N | =6B | −7N | =2B | +9N | =3B | =4N | 5.0 | 44.0 | 46.5 | 21.75 | 1507 | -34.4 |
| 6 | Luttakunaporn, Pichamon | 1429 | THA | −2B | +14N | +10B | =5N | =1N | −3B | +11N | −4N | =7B | 4.5 | 42.5 | 42.5 | 14.50 | 1477 | +10.8 |
| 7 | Sawangwong, Mutita | 0 | THA | −3N | =13N | +8B | +10N | +5B | −1B | −2N | =11B | =6N | 4.5 | 41.5 | 43.0 | 16.75 | 1523 | 0.0 |
| 8 | Ngernklan, Korrawan | 0 | THA | +12B | −5B | −7N | +11N | −4B | +10B | =3N | −1B | +13N | 4.5 | 37.5 | 39.0 | 12.25 | 1541 | 0.0 |
| 9 | Pangkhan, Piyawan | 0 | THA | +10B | +12N | −2B | −3N | +13B | −4N | −5B | F | −1N | 3.0 | 39.0 | 39.0 | 6.50 | 1481 | 0.0 |
| 10 | Kaenratana, Pannathon | 1503 | THA | −9N | +11B | −6N | −7B | +12B | −8N | +13N | −2B | F | 3.0 | 29.5 | 29.5 | 6.00 | 1528 | +4.0 |
| 11 | Pamornrattapong, Nutnicha | 0 | THA | −5N | −10N | +13B | −8B | F | +12N | −6B | =7N | −2B | 2.5 | 32.0 | 32.0 | 5.75 | 1417 | 0.0 |
| 12 | Volapattavechoti, Walinrumpai | 1515 | THA | −8N | −9B | +14N | −4B | −10N | −11B | F | +13B | −3N | 2.0 | 26.5 | 26.5 | 1.50 | 1284 | -44.4 |
| 13 | Keongamaroon, Artittaya | 1436 | THA | −1N | =7B | −11N | +14B | −9N | F | −10B | −12N | −8B | 1.5 | 28.0 | 28.0 | 2.25 | 782 | -38.0 |
| 14 | FIDE 6231195 | 0 | — | −4N | −6B | −12B | −13N | F | F | F | F | F | 0.0 | 16.0 | 16.0 | 0.00 | 654 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Junput, OrachapornTHA+61.66.5 pts · #2
- 2Tawankanjana, SasinatTHA+40.08.5 pts · #1
- 3Laoaraya, NatchananTHA+20.45.5 pts · #7
Top rating losers
- 1Volapattavechoti, WalinrumpaiTHA-44.42.0 pts · #12
- 2Keongamaroon, ArtittayaTHA-38.01.5 pts · #13
- 3Chinkulkitniwat, PurichayaTHA-34.45.0 pts · #8