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 (π²π² MYA, 1862).
Aung Thura Tun (π²π² 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
πΊπΈMilpitas, CA, United States
Dates
10 Oct 2025 β 12 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss Β· 6 rounds
Federations Β· 5 represented
πΊπΈUnited States of AmericaΓ23
π²π²MyanmarΓ1
π΅π·Puerto RicoΓ1
π¨π¦CanadaΓ1
π»π³VietnamΓ1
Top 3
- π₯
- π₯
- π₯
How it unfolded
Top 6 Β· 6 roundsAung 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
R6 Β· LEADER CHANGE12 Oct
Aung Thura Tun takes the sole lead (4.5/6).
Key matchups Β· top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Aung Thura Tun | * | β | β | 0 |
| 2David Sartorio | β | * | β | β |
| 3Aaron Yuanjie Luo | β | β | * | β |
| 4Stephen Zhu | 1 | β | β | * |
Grille amΓ©ricaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Ξ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Aung Thura Tun | 1862 | MYA | =2N | +21B | +7N | β4N | +10B | +3B | 4.5 | 16.0 | 17.0 | 11.75 | 1791 | -16.0 |
| 2 | Gutta, Anirudh | 1530 | USA | =1B | +18N | F | =17B | =7N | +8N | 3.5 | 13.5 | 13.5 | 9.00 | 1859 | +83.2 |
| 3 | Jiang, Richard | 1559 | USA | =8B | =22N | +27B | +23N | =4B | β1N | 3.5 | 13.0 | 13.5 | 5.25 | 1651 | +23.2 |
| 4 | Zhu, Stephen | 1737 | USA | F | F | +17N | +1B | =3N | +12N | 3.5 | 11.5 | 11.5 | 9.75 | 2010 | +47.2 |
| 5 | Sartorio, David | 1681 | USA | +19B | =9N | β8B | +22N | F | +7B | 3.5 | 11.5 | 11.5 | 7.00 | 1715 | +9.6 |
| 6 | Luo, Aaron Yuanjie | 1740 | USA | F | F | +11B | +13N | =12B | +17B | 3.5 | 8.0 | 8.0 | 7.00 | 1934 | +31.6 |
| 7 | Jonnalagada, Navaneet Vishnusai | 1582 | USA | +15B | +13N | β1B | =10N | =2B | β5N | 3.0 | 16.0 | 18.0 | 7.00 | 1632 | +14.4 |
| 8 | DB, Pranav | 1541 | USA | =3N | +26B | +5N | =12B | β17N | β2B | 3.0 | 14.0 | 14.5 | 6.75 | 1597 | +16.8 |
| 9 | Gao, Ethan Wangchen | 1592 | USA | +24N | =5B | =23N | F | F | +11B | 3.0 | 8.0 | 8.0 | 5.75 | 1888 | +44.0 |
| 10 | Rajaram, Adit | 1522 | USA | F | F | +21N | =7B | β1N | +18B | 2.5 | 10.0 | 10.0 | 4.00 | 1808 | +40.4 |
| 11 | Rapaka, Anish | 1625 | USA | F | =14B | β6N | +26B | +21N | β9N | 2.5 | 10.0 | 10.0 | 2.50 | 1586 | -12.8 |
| 12 | Long, Youting | 1549 | USA | F | F | +22B | =8N | =6N | β4B | 2.0 | 11.0 | 11.0 | 4.25 | 1654 | +21.6 |
| 13 | Tran Tri Duc | 1479 | VIE | +25N | β7B | +20N | β6B | β16B | F | 2.0 | 11.0 | 11.0 | 2.50 | 1446 | -6.8 |
| 14 | Wang, Matthew | 1452 | USA | =18B | =11N | F | F | =20B | =15N | 2.0 | 7.5 | 7.5 | 3.75 | 1700 | +30.4 |
| 15 | Garbouz, Igor | 1634 | USA | β7N | =25B | +18N | F | F | =14B | 2.0 | 7.5 | 7.5 | 3.00 | 1619 | -3.6 |
| 16 | Yaldaei, Joshua | 1662 | USA | F | F | F | +19B | +13N | F | 2.0 | 3.5 | 3.5 | 3.50 | 2296 | +22.4 |
| 17 | Yuen, Toma | 1732 | CAN | F | F | β4B | =2N | +8B | β6N | 1.5 | 13.5 | 13.5 | 4.75 | 1550 | -19.6 |
| 18 | Rodriguez Labrador, Marco | 1832 | PUR | =14N | β2B | β15B | F | +19N | β10N | 1.5 | 11.5 | 11.5 | 2.50 | 1405 | -52.8 |
| 19 | Navaneetha Prabhu, Arjunsai | 1510 | USA | β5N | +24B | F | β16N | β18B | =26N | 1.5 | 8.5 | 8.5 | 1.25 | 1500 | -5.6 |
| 20 | Zhang, Vincent | 0 | USA | F | F | β13B | F | =14N | +21B | 1.5 | 5.0 | 5.0 | 2.00 | 1515 | 0.0 |
| 21 | Kuritsyn, Alexander | 1576 | USA | F | β1N | β10B | +24N | β11B | β20N | 1.0 | 12.0 | 12.0 | 1.00 | 1466 | -23.6 |
| 22 | Mythil, Arnav | 1600 | USA | F | =3B | β12N | β5B | =25N | F | 1.0 | 10.0 | 10.0 | 2.25 | 1396 | -42.4 |
| 23 | Sharma, Shivam Saran | 0 | USA | F | F | =9B | β3B | F | =24N | 1.0 | 7.5 | 7.5 | 2.00 | 1435 | 0.0 |
| 24 | Fergerson, Ray | 1533 | USA | β9B | β19N | F | β21B | =27N | =23B | 1.0 | 7.0 | 7.0 | 0.75 | 1226 | -56.8 |
| 25 | Parhar, Ojas | 1572 | USA | β13B | =15N | F | F | =22B | F | 1.0 | 5.0 | 5.0 | 1.50 | 1446 | -20.0 |
| 26 | Chen, Felix Y | 1535 | USA | F | β8N | F | β11N | F | =19B | 0.5 | 7.0 | 7.0 | 0.75 | 1289 | -36.0 |
| 27 | Liu, Kaihan | 1516 | USA | F | F | β3N | F | =24B | F | 0.5 | 4.5 | 4.5 | 0.50 | 1351 | -16.4 |
Key insights
Biggest movers and upsets β the story behind the numbers.
Top rating gainers
- 1Gutta, AnirudhUSA+83.23.5 pts Β· #5
- 2Zhu, StephenUSA+47.23.5 pts Β· #4
- 3Gao, Ethan WangchenUSA+44.03.0 pts Β· #10
Top rating losers
- 1Fergerson, RayUSA-56.81.0 pts Β· #25
- 2Rodriguez Labrador, MarcoPUR-52.81.5 pts Β· #15
- 3Mythil, ArnavUSA-42.41.0 pts Β· #20
Biggest upsets
- R6+310 Elo gap
- R2+302 Elo gap
- R3+198 Elo gap