CChessStats

Estonian U13 Championship 2026

Open SwissStandard

29 players participated in this 6-round tournament, held from 02 Jan 2026 to 04 Jan 2026 in Tartu, Estonia. Top 10 Elo average was 1636, and top seed was Karl Samuel Leht (🇪🇪 EST, 1816).

Kristofer Kais (🇪🇪 EST, 1783) won with 5.0/6, ahead of Adrian Kornilov (5.0) and Mart Mattias Alas (4.5). Kais shared the lead from round 5, winning on tie-break.

The biggest upset came in round 2: Marten Kibe (1519) beat Karl Samuel Leht (1816), a +297-point gap.

Location
🇪🇪Tartu, Estonia
Dates
02 Jan 2026 → 04 Jan 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇪🇪Karl Samuel Leht1816
Avg top 10
1,636
Participants
29
Federations · 1 represented
🇪🇪Estonia×26
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 2 players tied at 5.0/6, decided on Buchholz.

Co-leaders
14
7
3
1
2
2
1.534.56R1R2R3R4R5R6
Kais5Kornilov5Toome4.5Alas4.5Maidessoo4Kibe4
R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Kais takes the title on Buchholz Cut1 (21.0).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Kristofer Kais beat Adrian Kornilov (White).

WIN STREAKS · 3 top finishers

Kristofer Kais 3 wins (R1–R3)Adrian Kornilov 3 wins (R4–R6)Oskar Toome 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Kristofer Kais*
1
½
½
2Adrian Kornilov
0
*—
1
3Oskar Toome
½
—*
0
4Mart Mattias Alas
½
0
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Kais, Kristofer1783EST+21B+15N+2B=3N+6B=4N5.021.023.519.001892+26.0
2Kornilov, Adrian1622EST+12N+23B−1N+5B+9N+3N5.020.522.517.501811+30.0
3Alas, Mart Mattias1662EST+29N+5B+9N=1B+4N−2B4.522.022.014.501762+21.6
4Toome, Oskar1642EST+25B+20N+7B+11N−3B=1B4.519.521.514.501739+25.6
5Laur, Mark0EST+?B−3N+8B−2N+21B+18N4.019.019.09.5015010.0
6Leht, Karl Samuel1816EST+17N−7B+13N+15B−1N+14B4.018.521.512.501559-47.2
7Kibe, Marten1519EST+24B+6N−4N=14B+10N=9B4.018.520.512.751740+44.8
8Maidessoo, Marten0EST+10N−9B−5N+22B+15N+16B4.017.019.512.0015520.0
9Reren, Alexis Miriam1614EST+19B+8N−3B+20N−2B=7N3.520.523.011.501482-30.0
10Voronova, Anastassia1588EST−8B+19N+21B+17N−7B=11N3.517.520.010.251480-3.2
11Vedernykov, Gennadi1515EST=13N+27B+14N−4B=16N=10B3.517.518.59.001396-19.6
12Kanger, Saskia Lee0EST−2B=16N+26B−18N+27B+19B3.516.017.07.5012720.0
13Purre, Jaan0EST=11B+?N−6B−16N+25B+20N3.515.015.06.2515500.0
14Thimm, Leelo Mia0EST+16B+18N−11B=7N=20B−6N3.017.520.09.2515560.0
15Istratova, Nika1513EST+26B−1B+22N−6N−8B+24N3.017.519.56.501002-12.4
16Urbanovits, Hugo1419EST−14N=12B+27N+13B=11B−8N3.017.518.58.001516+5.6
17Kojus, Lukas1403EST−6B+24N+18B−10B−19N+23B3.015.517.57.001507+12.0
18Chernov, Iakov1599EST+28N−14B−17N+12B+24N−5B3.015.516.56.50603-30.0
19Lykk, Roland0EST−9N−10B+?B+26N+17B−12N3.015.515.55.0015110.0
20Patrikejeva, Sofia1472EST+22N−4B+23N−9B=14N−13B2.517.019.06.00830-23.2
21Elhi, Karl Erik0EST−1N+28B−10N+23B−5N=22B2.517.018.04.258420.0
22Rudiger, Camilla Anna0EST−20B+25N−15B−8N+?B=21N2.514.014.03.2513790.0
23Missik, Mirko0EST+?B−2N−20B−21N+26B−17N2.015.015.02.0013130.0
24Paas, Johan0EST−7N−17B+29N+25N−18B−15B2.015.015.02.007080.0
25FIDE 45208230—−4N−22B+28N−24B−13N+29B2.013.513.51.008450.0
26Ratsoborski, Jaroslav0EST−15N+29B−12N−19B−23N+28N2.012.512.51.007140.0
27Toomla, Marven0ESTF−11N−16B+29B−12N−?N1.010.010.00.006860.0
28FIDE 45329880—−18B−21N−25B−?N+29N−26B1.09.59.50.007600.0
29FIDE 45308100—−3B−26N−24B−27N−28B−25N0.011.512.50.008600.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets