CChessStats

21st Thailand Junior Chess Championship 2026 - U18

Open SwissStandard

19 players participated in this 9-round tournament, held from 10 Apr 2026 to 14 Apr 2026 in Nonthaburi, Thailand. 2 federations represented. Top 10 Elo average was 1272, and top seed was Veerasaroot Bunkangwan (🇹🇭 THA, 1707).

Kittin Phumpayom (🇹🇭 THA, 1564) won with 8.0/9, ahead of Dhi Tawankanjana (7.5) and Pathee Chiravanich (6.5). Phumpayom took the lead from round 5.

The biggest upset came in round 2: Kittin Phumpayom (1564) beat Veerasaroot Bunkangwan (1707), a +143-point gap.

Location
🇹🇭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
Top seed
🇹🇭Veerasaroot Bunkangwan1707
Avg top 10
1,272
Participants
19
Federations · 2 represented
🇹🇭Thailand×14
FIDE (no federation)×1
Top 3

How it unfolded

Top 6 · 9 rounds

Kittin Phumpayom led from R5; +0.5-point edge over the runner-up.

Co-leaders
8
5
2
1
1
2
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9Phumpayom takes lead
Phumpayom8Tawankanjana7.5Chiravanich6.5Lueang-urai5.5Suksumit5.5Saengngoen5.5
R5 · LEADER CHANGE12 Apr

Kittin Phumpayom takes the sole lead (4.5/5).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Kittin Phumpayom beat Dhi Tawankanjana (White).

WIN STREAKS · 3 top finishers

Kittin Phumpayom 3 wins (R7–R9)Dhi Tawankanjana 4+3 wins (R1–R4, R7–R9)Pathee Chiravanich 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Kittin Phumpayom*
1
½
½
2Dhi Tawankanjana
0
*
1
½
3Pathee Chiravanich
½
0
*
0
4Peerasit Lueang-urai
½
½
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Phumpayom, Kittin1564THA+14B+19N=6B+5N+2B=3N+4B+10N+8B8.042.543.537.501893+84.0
2Tawankanjana, Dhi1615THA+18B+7N+4B+3B−1N=6N+5B+13N+10B7.543.044.533.751723+23.2
3Chiravanich, Pathee1699THA+15B+11N+5B−2N+7B=1B+8N+4N−6B6.546.048.031.001576-32.4
4Suksumit, Roman0THA+16N+9B−2N+8B+6B+7N−1N−3B=5N5.548.050.025.2515370.0
5Saengngoen, Kantawit1604THA+8N+17B−3N−1B+9N+13B−2N+6N=4B5.546.048.023.251437-34.8
6Lueang-urai, Peerasit1641THA=9N+16B=1N+13B−4N=2B+11N−5B+3N5.545.047.025.751688+15.6
7Sinsuk, Kitkawin0FID+13N−2B+10N+17B−3N−4B+9N−8B+12N5.040.542.518.008570.0
8Phuphang, Noppakao0THA−5B+15N+19B−4N+11B+10N−3B+7N−1N5.040.541.516.0015340.0
9Korkiatphithak, Chayakorn0THA=6B−4N+15B=11N−5B+18N−7B+14N+17N5.032.534.013.2514420.0
10Srivannaboon, Sabiangtham0THA−11B+18N−7B+14N+12N−8B+16N−1B−2N4.038.540.010.5013250.0
11Kangkorn, San1455THA+10N−3B=17N=9B−8N+12B−6B+18NF4.034.035.513.00870-18.4
12Hongthiamthong, Natthapad0THA−19B+14N−13B+18N−10B−11N+15B+16N−7B4.024.525.58.5014080.0
13FIDE 62319340—−7BF+12N−6N+17B−5N+14B−2B−15N3.034.534.59.008200.0
14Sombatjaidee, Pakorn0THA−1N−12BF−10B+16N+15B−13N−9B+18N3.029.529.55.5015020.0
15FIDE 62319180—−3N−8B−9N−16B+18B−14N−12N−17B+13B2.030.532.04.507690.0
16Thongmuen, Phupa1437THA−4B−6N−18B+15N−14B+17N−10B−12BF2.030.031.54.00841-9.6
17FIDE 62319500—F−5N=11B−7N−13N−16B=18B+15N−9B2.028.028.04.7512260.0
18FIDE 62323960—−2N−10B+16N−12B−15N−9B=17N−11B−14B1.531.533.53.0013780.0
19Bunkangwan, Veerasaroot1707THA+12N−1B−8NFFFFFF1.017.017.04.00765-27.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets