CChessStats

2025 US National Class Championship - Class B

Open SwissStandard

27 players participated in this 6-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Milpitas, CA, United States. 5 federations represented. Top 10 Elo average was 1711, and top seed was Aung Thura Tun (🇲🇲 MYA, 1862).

Aung Thura Tun (🇲🇲 MYA, 1862) won with 4.5/6, ahead of Anirudh Gutta (3.5) and Richard Jiang (3.5). Tun shared the lead from round 5 and broke clear in the final round.

The biggest upset came in round 6: Adit Rajaram (1522) beat Marco Rodriguez Labrador (1832), a +310-point gap.

Location
🇺🇸Milpitas, CA, United States
Dates
10 Oct 2025 → 12 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇲🇲Aung Thura Tun1862
Avg top 10
1,711
Participants
27
Federations · 5 represented
🇺🇸United States of America×23
🇲🇲Myanmar×1
🇵🇷Puerto Rico×1
🇨🇦Canada×1
🇻🇳Vietnam×1
Top 3

How it unfolded

Top 6 · 6 rounds

Aung Thura Tun led from R6; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R6.

Co-leaders
4
1
2
2
2
1
1.534.56R1R2R3R4R5R6Tun takes lead
Tun4.5Sartorio3.5Luo3.5Zhu3.5Gutta3.5Jiang3.5
R6 · LEADER CHANGE12 Oct

Aung Thura Tun takes the sole lead (4.5/6).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Aung Thura Tun*
0
2David Sartorio*
3Aaron Yuanjie Luo*
4Stephen Zhu
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Aung Thura Tun1862MYA=2N+21B+7N4N+10B+3B4.516.017.011.751791-16.0
2Gutta, Anirudh1530USA=1B+18NF=17B=7N+8N3.513.513.59.001859+83.2
3Jiang, Richard1559USA=8B=22N+27B+23N=4B1N3.513.013.55.251651+23.2
4Zhu, Stephen1737USAFF+17N+1B=3N+12N3.511.511.59.752010+47.2
5Sartorio, David1681USA+19B=9N8B+22NF+7B3.511.511.57.001715+9.6
6Luo, Aaron Yuanjie1740USAFF+11B+13N=12B+17B3.58.08.07.001934+31.6
7Jonnalagada, Navaneet Vishnusai1582USA+15B+13N1B=10N=2B5N3.016.018.07.001632+14.4
8DB, Pranav1541USA=3N+26B+5N=12B17N2B3.014.014.56.751597+16.8
9Gao, Ethan Wangchen1592USA+24N=5B=23NFF+11B3.08.08.05.751888+44.0
10Rajaram, Adit1522USAFF+21N=7B1N+18B2.510.010.04.001808+40.4
11Rapaka, Anish1625USAF=14B6N+26B+21N9N2.510.010.02.501586-12.8
12Long, Youting1549USAFF+22B=8N=6N4B2.011.011.04.251654+21.6
13Tran Tri Duc1479VIE+25N7B+20N6B16BF2.011.011.02.501446-6.8
14Wang, Matthew1452USA=18B=11NFF=20B=15N2.07.57.53.751700+30.4
15Garbouz, Igor1634USA7N=25B+18NFF=14B2.07.57.53.001619-3.6
16Yaldaei, Joshua1662USAFFF+19B+13NF2.03.53.53.502296+22.4
17Yuen, Toma1732CANFF4B=2N+8B6N1.513.513.54.751550-19.6
18Rodriguez Labrador, Marco1832PUR=14N2B15BF+19N10N1.511.511.52.501405-52.8
19Navaneetha Prabhu, Arjunsai1510USA5N+24BF16N18B=26N1.58.58.51.251500-5.6
20Zhang, Vincent0USAFF13BF=14N+21B1.55.05.02.0015150.0
21Kuritsyn, Alexander1576USAF1N10B+24N11B20N1.012.012.01.001466-23.6
22Mythil, Arnav1600USAF=3B12N5B=25NF1.010.010.02.251396-42.4
23Sharma, Shivam Saran0USAFF=9B3BF=24N1.07.57.52.0014350.0
24Fergerson, Ray1533USA9B19NF21B=27N=23B1.07.07.00.751226-56.8
25Parhar, Ojas1572USA13B=15NFF=22BF1.05.05.01.501446-20.0
26Chen, Felix Y1535USAF8NF11NF=19B0.57.07.00.751289-36.0
27Liu, Kaihan1516USAFF3NF=24BF0.54.54.50.501351-16.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets