56th Annual National Chess Congress - U2000

Open SwissStandard

92 players participated in this 6-round tournament, held from 28 Nov 2025 to 30 Nov 2025 in Philadelphia, PA, United States. 8 federations represented. Top 10 Elo average was 1844, and top seed was Sean Michael Duffy (🇺🇸 USA, 1921).

Vaibhav Parihar (🇮🇳 IND, 1738) won with 5.5/6, ahead of Ani Sargsyan (4.5) and Taimoor Syed (4.5). Parihar shared the lead from round 4 and broke clear in the final round.

The biggest upset came in round 2: Sarayu Thandra (1522) beat Vahini Sadhu Venkata (1709), a +187-point gap.

Location

🇺🇸Philadelphia, PA, United States

Dates

28 Nov 2025 → 30 Nov 2025

Time control

Standard: 40 Moves in 80 Min. Del. 30 Sec. / / 30 Min. Del. 30 Sec.

System

Swiss · 6 rounds

Top seed

🇺🇸Sean Michael Duffy1921

Avg top 10

1,844

Participants

Federations · 8 represented

🇺🇸United States of America×76

🇮🇳India×3

🇰🇿Kazakhstan×1

🇨🇳China×1

🇳🇵Nepal×1

🇯🇵Japan×1

🇷🇴Romania×1

FIDE (no federation)×1

Top 3

🥇
Vaibhav Parihar
🇮🇳IND·1738
5.5pts·2555perf+52.0
🥈
Ani Sargsyan
🇺🇸USA·1760
4.5pts·1935perf+26.4
🥉
Taimoor Syed
🇺🇸USA·1764
4.5pts·1940perf+44.0

How it unfolded

Top 6 · 6 rounds

Vaibhav Parihar led from R6; +1.0-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.

Co-leaders

Parihar5.5Syed4.5Sargsyan4.5Rigai4Tsen4Kumar4

R6–R6 · LEAD HELD

Vaibhav Parihar never relinquished the lead after R6; final gap +1.0 over the runner-up.

R2–R6 · WIN STREAK

Vaibhav Parihar won 5 in a row (R2–R6).

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Vaibhav Parihar	1738	IND	=23N	+40B	+81N	+27B	+11N	+26B	5.5	15.0	16.0	14.50	2555	+52.0
2	Sargsyan, Ani	1760	USA	=12N	=42B	+57N	=22B	+13N	+72B	4.5	15.0	16.5	11.75	1935	+26.4
3	Syed, Taimoor	1764	USA	+70N	+77B	=44N	+32B	+41B	−35N	4.5	12.5	13.5	9.25	1940	+44.0
4	Fugate, Lucas	1861	USA	+69N	+17B	+24N	−26B	−10B	+29N	4.0	16.5	18.0	11.00	1864	+1.6
5	Sargsyan, Vahan	1774	USA	+9N	=25B	−13N	+42B	=40N	+24B	4.0	16.0	18.5	12.25	1624	-32.4
6	Kumar, Rohan	1825	USA	F	+23B	+25N	+13B	−19N	+28N	4.0	16.0	16.0	12.50	2433	+30.0
7	Rigai, Jon	1742	USA	+57N	−24B	+70N	+9B	+65N	−31B	4.0	14.0	15.5	9.50	1861	+15.4
8	Liang, Warren	1827	USA	−44N	+84B	+48N	−40B	+64N	+23B	4.0	12.5	13.0	8.00	874	-28.0
9	Acharya, Kritarth	1630	USA	−5B	+89N	+59B	−7N	+73B	+79N	4.0	12.5	12.5	4.50	1536	-14.4
10	Tsen, Andrew	0	USA	F	F	+62B	+?B	+4N	+14B	4.0	9.5	9.5	9.50	1836	0.0
11	Rajeev, Pallavi	1731	FID	+87N	+41B	+43N	=14B	−1B	−20N	3.5	17.5	17.5	6.75	1807	+21.6
12	Zhou, Mason Lou	1641	USA	=2B	=16B	=30N	−21N	+50B	+71N	3.5	17.0	18.5	9.50	1809	+36.0
13	Sengupta, Nevan	1587	USA	+66B	=60N	+5B	−6N	−2B	+69N	3.5	16.5	18.0	8.50	1712	+32.4
14	Linett, Steven J	1766	USA	+76B	+49N	+37B	=11N	−36B	−10N	3.5	16.0	17.0	8.25	1754	-1.2
15	Nulu, Avaneesh	1663	USA	=27N	=61B	=16N	+25B	+43N	−32B	3.5	15.0	17.0	9.75	1818	+49.6
16	Bustillo, Joaquin	1787	USA	=63B	=12N	=15B	=46N	+58B	=18B	3.5	15.0	17.0	9.50	1733	-4.4
17	Acharya, Saanvi	1671	USA	+50B	−4N	+58B	=47N	−21B	+43B	3.5	15.0	17.0	8.25	1803	+35.2
18	Thakkar, Aarav Sachin	0	USA	−25N	+69B	=61N	=23B	+45B	=16N	3.5	14.0	15.5	8.25	1755	0.0
19	Suprun, Denis	0	USA	F	F	=41B	+28N	+6B	+36N	3.5	12.5	12.5	11.25	1793	0.0
20	Chirico, Elijah Ali	0	USA	F	F	+64N	=43B	+78N	+11B	3.5	10.5	10.5	7.75	1732	0.0
21	Lambie-Hanson, Timothy S	0	USA	F	F	=?N	+12B	+17N	+40B	3.5	9.5	9.5	9.50	1722	0.0
22	Li, Ricky	0	USA	F	F	+?B	=2N	+47B	+41N	3.5	9.5	9.5	7.25	1768	0.0
23	Kumar, Yuvaan	0	USA	=1B	−6N	+63B	=18N	+42B	−8N	3.0	19.5	21.5	9.00	1524	-22.0
24	Tripathy, Siddharth Keshav	0	USA	+?B	+7N	−4B	−31N	+46B	−5N	3.0	17.5	17.5	6.50	1568	0.0
25	Aleksenko, Artem	1609	USA	+18B	=5N	−6B	−15N	=59B	+58N	3.0	17.0	19.0	8.50	1610	-0.8
26	Torrens, Jude Bae	1908	USA	F	F	+31B	+4N	+35B	−1N	3.0	15.5	15.5	10.00	1965	+11.6
27	Stefanello, Michael	1755	USA	=15B	+63N	+78B	−1N	=29B	F	3.0	15.0	15.0	6.25	1711	-3.6
28	Fujita, Anjyu	1703	USA	+58B	F	+46N	−19B	+44N	−6B	3.0	14.5	14.5	7.00	1674	-2.8
29	Sun, Eric Ningyuan	0	USA	=54N	=30B	+?N	=?B	=27N	−4B	3.0	12.5	12.5	4.25	1692	0.0
30	Jacome, Kristian	1787	USA	=48B	=29N	=12B	=60N	+76B	F	3.0	12.0	12.0	6.50	1599	-19.6
31	Gutierrez, Augusto Enrique	1671	USA	F	F	−26N	+24B	+79B	+7N	3.0	11.0	11.0	8.00	1823	+7.8
32	Duffy, Sean Michael	1921	USA	F	F	+76B	−3N	+60B	+15N	3.0	11.0	11.0	6.50	1787	-17.2
33	Weyman, Grant A	1684	USA	F	F	+53B	=34N	=55B	+48N	3.0	10.5	10.5	7.75	1760	+4.4
34	Wang, Devin V	0	USA	=42N	=54B	+51N	=33B	−?N	=?B	3.0	10.5	10.5	6.50	1646	0.0
35	Shakya, Amrit	1817	NEP	F	F	+71B	+79N	−26N	+3B	3.0	10.0	10.0	7.00	1836	+1.0
36	Bershanskiy, Vladimir	1707	USA	F	F	+90N	+44B	+14N	−19B	3.0	9.5	9.5	6.00	2566	+23.2
37	Lou, Aileen	1533	USA	+89B	+59N	−14N	−65B	+75N	F	3.0	9.0	9.0	3.50	1556	+1.2
38	Shakarim, Ibrakhim	0	KAZ	F	F	+88B	−73N	+68B	+59N	3.0	5.5	5.5	4.00	1634	0.0
39	Nigam, Myra	1584	USA	F	F	+74N	−61B	+87N	+80B	3.0	4.5	4.5	2.50	1690	+9.2
40	Singh, Aarav	1675	USA	F	−1N	+49B	+8N	=5B	−21N	2.5	19.5	19.5	8.50	1847	+36.8
41	Gowtham K	1695	IND	+53B	−11N	=19N	+72B	−3N	−22B	2.5	17.5	19.0	5.75	1591	-8.2
42	Campbell, Declan	0	USA	=34B	=2N	+45B	−5N	−23N	=52B	2.5	17.0	19.5	7.50	1752	0.0
43	Shen, Kevin	1613	USA	+51B	+45N	−11B	=20N	−15B	−17N	2.5	16.5	19.0	6.75	1603	-3.2
44	Wang, Tyler	0	USA	+8B	+71N	=3B	−36N	−28B	−62N	2.5	16.5	18.0	7.75	1663	0.0
45	Elhyani, Aidan Daniel	1763	USA	+61N	−43B	−42N	+51B	−18N	=75B	2.5	13.0	14.5	5.25	1812	+8.0
46	Tejas Kunala	0	IND	+47B	=78N	−28B	=16B	−24N	=?N	2.5	13.0	13.0	4.75	1732	0.0
47	Jain, Parinya	1730	USA	−46N	+68B	+77N	=17B	−22N	F	2.5	12.5	12.5	4.75	1895	+22.4
48	Hemlock, Sebastian Koh	0	USA	=30N	F	−8B	+85N	+62B	−33B	2.5	12.5	12.5	4.00	1491	0.0
49	Ho, Charles	1665	USA	+82N	−14B	−40N	=77B	=57N	=67N	2.5	11.0	12.0	3.50	1441	-46.4
50	Vairavan, Kavin	1550	USA	−17N	−57B	=84N	+74B	−12N	+87B	2.5	11.0	11.0	1.75	1383	-33.2
51	Xu, Mark	1549	USA	−43N	+87B	−34B	−45N	+85B	=53N	2.5	11.0	11.0	1.75	1494	-8.8
52	Sadhu Venkata, Vahini	1709	USA	−59B	−58N	+82B	=66N	=67B	=42N	2.5	10.5	11.5	4.25	722	-29.6
53	Qu, Mofei	0	USA	−41N	+82B	−33N	=70B	=80N	=51B	2.5	10.5	11.5	3.50	1408	0.0
54	Lin, Kirby	0	USA	=29B	=34N	+60B	=56N	F	F	2.5	10.5	10.5	6.25	1578	0.0
55	Krayn, Aaron	1760	USA	F	F	+67N	+90B	=33N	F	2.5	5.0	5.0	3.50	1679	-4.4
56	Ding, Sihan	0	CHN	F	F	+80N	=54B	+83N	−?B	2.5	4.5	4.5	3.25	1750	0.0
57	Cai, Harrison	1516	USA	−7B	+50N	−2B	−62N	=49B	=63N	2.0	15.5	17.5	4.75	1590	+13.2
58	Thandra, Sarayu	1522	USA	−28N	+52B	−17N	+86B	−16N	−25B	2.0	15.5	16.0	3.00	1563	+12.0
59	Jambudi, Vihaan	0	USA	+52N	−37B	−9N	=?B	=25N	−38B	2.0	15.5	15.5	4.00	1532	0.0
60	Karthikeyan, Adhinanth Krishna	1559	USA	+91N	=13B	−54N	=30B	−32N	−66B	2.0	14.0	14.0	3.25	1758	+38.4
61	Leaua, Cristinel-Costel	1900	ROU	−45B	=15N	=18B	+39N	F	F	2.0	12.5	12.5	6.50	1670	-17.0
62	Ravinutala, Vivek	0	USA	F	F	−10N	+57B	−48N	+44B	2.0	12.5	12.5	4.50	1534	0.0
63	Gopi, Roshan	0	USA	=16N	−27B	−23N	+?B	−?N	=57B	2.0	11.5	11.5	2.75	1553	0.0
64	FIDE 39999408	0	—	F	F	−20B	+92N	−8B	+73N	2.0	9.0	9.0	1.50	1027	0.0
65	Perez, Osvaldo	1807	USA	F	F	+69B	+37N	−7B	F	2.0	8.5	8.5	4.50	1761	-3.0
66	Endo van Dooijeweert, Sebastian	0	JPN	−13N	F	=86N	=52B	F	+60N	2.0	8.5	8.5	3.50	1631	0.0
67	Yang, Jeffrey	0	USA	F	F	−55B	+84N	=52N	=49B	2.0	8.0	8.0	3.00	1586	0.0
68	Lim, Ayden	1614	USA	−81B	−47N	+87B	−76N	−38N	+88B	2.0	7.5	7.5	0.00	1514	-15.6
69	Hobby, Dillian	1640	USA	−4B	−18N	−65N	=80B	+70N	−13B	1.5	14.5	15.5	2.00	1491	-31.2
70	Bangaru, Sahishn Sai	1483	USA	−3B	+76N	−7B	=53N	−69B	F	1.5	13.5	13.5	2.25	913	-25.6
71	Chandan, Alok	0	USA	+84N	−44B	−35N	=83B	−72N	−12B	1.5	11.5	12.0	1.00	1403	0.0
72	Chang, Charlotte Tai-En	1655	USA	F	F	=83B	−41N	+71B	−2N	1.5	9.5	9.5	2.00	1474	-24.8
73	FIDE 39999432	0	—	F	F	=?N	+38B	−9N	−64B	1.5	9.0	9.0	3.00	828	0.0
74	FIDE 39966534	0	—	F	F	−39B	−50N	+88N	=85B	1.5	6.0	6.0	0.25	765	0.0
75	Xing, Samuel	0	USA	F	F	F	+?N	−37B	=45N	1.5	5.5	5.5	1.25	1455	0.0
76	Sun, Gordon	0	USA	−14N	−70B	−32N	+68B	−30N	F	1.0	13.0	13.0	2.00	1474	0.0
77	Birudavolu, Sathvik	1582	USA	F	−3N	−47B	=49N	F	=78B	1.0	10.5	10.5	1.75	1529	-10.0
78	Persons, Christopher J	1731	USA	F	=46B	−27N	F	−20B	=77N	1.0	10.0	10.0	1.75	1476	-26.8
79	Han, Timothy	0	USA	F	F	+?N	−35B	−31N	−9B	1.0	10.0	10.0	0.00	1514	0.0
80	Kirubakaran, Gautham	0	USA	F	F	−56B	=69N	=53B	−39N	1.0	9.5	9.5	2.00	1418	0.0
81	Robeal, Rafik	1707	USA	+68N	F	−1B	F	F	F	1.0	7.5	7.5	2.00	1676	-1.8
82	FIDE 39965996	0	—	−49B	−53N	−52N	+88B	F	F	1.0	7.5	7.5	0.00	887	0.0
83	Brown, Wilbert	1787	USA	F	F	=72N	=71N	−56B	F	1.0	5.5	5.5	1.50	1654	-3.6
84	Mutukulloju, Varun Shankar	0	USA	−71B	−8N	=50B	−67B	F	F	0.5	10.0	10.0	1.25	1494	0.0
85	FIDE 39999793	0	—	F	F	F	−48B	−51N	=74N	0.5	6.5	6.5	0.75	747	0.0
86	Coleman, Mark	1674	USA	F	F	=66B	−58N	F	F	0.5	4.0	4.0	1.00	722	-28.0
87	Jandhyala, Satyarjit	1484	USA	−11B	−51N	−68N	F	−39B	−50N	0.0	13.5	13.5	0.00	804	-67.6
88	FIDE 39997561	0	—	F	F	−38N	−82N	−74B	−68N	0.0	7.5	7.5	0.00	814	0.0
89	Chandar, Sai Avantika	1469	USA	−37N	−9B	F	F	F	F	0.0	7.0	7.0	0.00	780	-28.0
90	Culbertson, William Robert	0	USA	F	F	−36B	−55N	F	F	0.0	5.5	5.5	0.00	934	0.0
91	Verma, Angelina	1735	USA	−60B	F	F	F	F	F	0.0	2.0	2.0	0.00	758	-14.6
92	FIDE 566002435	0	—	F	F	−?N	−64B	F	F	0.0	2.0	2.0	0.00	902	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Vaibhav PariharIND
+52.0
5.5 pts · #1
2Nulu, AvaneeshUSA
+49.6
3.5 pts · #5
3Syed, TaimoorUSA
+44.0
4.5 pts · #2

Top rating losers

1Jandhyala, SatyarjitUSA
-67.6
0.0 pts · #91
2Ho, CharlesUSA
-46.4
2.5 pts · #56
3Vairavan, KavinUSA
-33.2
2.5 pts · #49

Biggest upsets

R2+187 Elo gap
Thandra, Sarayu1522 beat Sadhu Venkata, Vahini1709
R3+187 Elo gap
Sengupta, Nevan1587 beat Sargsyan, Vahan1774
R1+176 Elo gap
Karthikeyan, Adhinanth Krishna1559 beat Verma, Angelina1735