2025 Seattle Seafair Open

Open SwissStandard

73 players participated in this 5-round tournament, held from 12 Jul 2025 to 13 Jul 2025 in Bellevue, WA, United States. 9 titled players from 6 federations. Top 10 Elo average was 2113, and top seed was Aziz Degenbaev (🇰🇬 KGZ, FM, 2286).

Vidip Kona (🇺🇸 USA, CM, 2036) won with 4.0/5, ahead of Vihaan Jammalamadaka (4.0) and Aziz Degenbaev (4.0).

The biggest upset came in round 2: Benjamin Frederick (1626) beat Leonid Gavrish (1951), a +325-point gap.

Location

🇺🇸Bellevue, WA, United States

Dates

12 Jul 2025 → 13 Jul 2025

Time control

Standard: 75 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇰🇬FMAziz Degenbaev2286

Avg top 10

2,113

Participants

Titled players · 9

FM×3

CM×4

WCM×2

Federations · 6 represented

🇺🇸United States of America×64

🇮🇳India×4

🇺🇦Ukraine×2

🇨🇦Canada×1

🇸🇬Singapore×1

🇰🇬Kyrgyzstan×1

Top 3

🥇
CMVidip Kona
🇺🇸USA·2036
4.0pts·2167perf+24.9
🥈
CMVihaan Jammalamadaka
🇺🇸USA·1977
4.0pts·2153perf+43.6
🥉
FMAziz Degenbaev
🇰🇬KGZ·2286
4.0pts·2724perf+8.6

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 6 players tied at 4.0/5, decided on Buchholz.

Co-leaders

Porter4Jammalamadaka4Degenbaev4Kona4Yondon4Panda4

R5 · TIEBREAK CLUSTER

6 players finish on 4.0/5. Kona takes the title on Buchholz Cut1 (14.5).

WIN STREAKS · 3 top finishers

FM Ryan W Porter 4 wins (R1–R5)CM Vihaan Jammalamadaka 3 wins (R1–R3)FM Aziz Degenbaev 4 wins (R1–R5)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMRyan W Porter	*	—	—	—
2CMVihaan Jammalamadaka	—	*	—	0
3FMAziz Degenbaev	—	—	*	1
4CMVidip Kona	—	1	0	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Kona, VidipCM	2036	USA	+50B	+20N	+8B	+2N	−3B	4.0	14.5	16.5	12.50	2167	+24.9
2	Jammalamadaka, VihaanCM	1977	USA	+41B	+66N	+7N	−1B	+16B	4.0	12.5	13.5	9.50	2153	+43.6
3	Degenbaev, AzizFM	2286	KGZ	+64N	+5B	F	+10B	+1N	4.0	12.5	12.5	12.50	2724	+8.6
4	Porter, Ryan WFM	2221	USA	+34B	+16N	F	+11B	+17N	4.0	12.0	12.0	12.00	2688	+10.6
5	Yondon, Odbayar	1785	USA	+72B	−3N	+41B	+42N	+15B	4.0	11.0	11.0	7.00	2084	+69.6
6	Panda, Vedic	2158	USA	=62N	+46B	+47N	+44B	=7N	4.0	9.5	10.5	8.25	2271	+10.4
7	Siddarth, M	2259	IND	+69B	+18N	−2B	+33N	=6B	3.5	13.5	14.0	8.00	2091	-14.8
8	Colombo, Dominic	1869	USA	+27N	+63B	−1N	+19B	=9N	3.5	13.0	14.0	8.25	1924	+8.0
9	Eksarevskiy, Albert Alex	1854	USA	+67N	=39B	+12B	=13N	=8B	3.5	13.0	13.5	8.75	2067	+56.8
10	Pikh, Akim	1858	UKR	+42B	+52N	+15B	−3N	=24B	3.5	12.0	13.5	8.00	2009	+37.6
11	Palathingal, RafaelCM	1884	USA	+37B	=43N	+28B	−4N	+32B	3.5	11.5	13.5	8.50	1973	+15.9
12	Thorwe Pratik	1911	IND	=26N	+65B	−9N	+35B	+31N	3.5	11.0	12.0	7.25	1873	-3.2
13	Jiang, BrandonFM	2052	USA	F	+62B	+38N	=9B	+18N	3.5	10.0	10.0	8.25	2026	-2.4
14	Gupta, Anand	1858	USA	−63N	=27B	+67N	+52B	+30N	3.5	7.5	8.0	5.75	1836	-2.4
15	Gottumukkala, Ananth	2075	USA	+48N	+30B	−10N	+20B	−5N	3.0	13.0	15.0	7.50	1829	-26.2
16	Patankar, Vijay	1789	USA	+70N	−4B	+48N	+29B	−2N	3.0	12.5	13.0	5.00	1876	+19.6
17	Kurungod Anoop, Pranav	2024	USA	+35N	+19B	F	+26N	−4B	3.0	12.0	12.0	8.00	1992	+1.0
18	Bhaskaran, Siddharth	1811	USA	+29N	−7B	+43B	+45N	−13B	3.0	11.5	13.5	6.50	1935	+28.8
19	Shenoy Siddharth	1695	IND	+73B	−17N	+22B	−8N	+51B	3.0	11.5	11.5	5.00	1805	+14.0
20	Mishra, Abhinav	1750	USA	+54B	−1B	+63N	−15N	+42B	3.0	10.5	11.5	4.50	1851	+23.6
21	Pai, Vihaan	1532	USA	=32B	−28N	+69B	=36N	+45B	3.0	9.5	10.0	5.00	1826	+76.4
22	Xu, Zoe Yue	1532	USA	=71N	=33B	−19N	+62B	+48N	3.0	8.5	9.0	4.50	1735	+40.8
23	Wei, Jeffrey	1863	USA	−43B	+55N	−45B	+56N	+26B	3.0	8.0	9.5	5.50	1567	-46.4
24	Zhou, Yuchen	1702	USA	=49N	+68B	F	+47B	=10N	3.0	8.0	8.0	5.25	1874	+27.6
25	Gavrish, Leonid	1951	UKR	F	−26B	+65N	+46B	+44N	3.0	7.5	7.5	5.00	1908	-3.0
26	Frederick, Benjamin	1626	USA	=12B	+25N	+31N	−17B	−23N	2.5	12.5	15.0	7.25	1911	+66.8
27	Shankaranand, Deeksha	1642	USA	−8B	=14N	+54B	=28N	=36B	2.5	12.0	13.5	5.75	1754	+29.2
28	Lazarte, Paul D	1754	USA	=53N	+21B	−11N	=27B	=29N	2.5	11.5	13.0	6.25	1651	-26.8
29	Li, Shawn	1603	USA	−18B	+34N	+71B	−16N	=28B	2.5	11.0	11.5	4.25	1775	+44.4
30	Garine, Ujwal	1716	USA	+59B	−15N	=52B	+37N	−14B	2.5	10.5	12.0	4.75	1762	+10.0
31	Nallappa, Vijay	1806	USA	=40B	+56N	−26B	+50N	−12B	2.5	10.5	12.0	4.75	1639	-26.8
32	Velea, SophieWCM	1782	USA	=21N	+53B	−39N	+64B	−11N	2.5	10.5	11.5	4.00	1754	-7.6
33	Beegala, Keshav	1767	USA	=56B	=22N	+58B	−7B	=43N	2.5	10.0	11.5	4.75	1742	-8.8
34	Subcleff, Jackson	1684	USA	−4N	−29B	=49N	+57B	+52N	2.5	10.0	11.5	4.00	1704	+0.8
35	Shi, Gavin	1655	USA	−17B	=54N	+53B	−12N	+55B	2.5	9.5	11.0	3.75	1689	+0.4
36	Karamali, Saiya	1713	USA	=68N	+49B	−44N	=21B	=27N	2.5	9.5	10.0	5.00	1636	-16.0
37	Cen, Evan	1685	USA	−11N	=57B	+68N	−30B	+53N	2.5	9.0	9.5	2.75	1614	-17.2
38	Kulick, Noah	0	USA	+61N	F	−13B	=51N	+41B	2.5	9.0	9.0	4.50	1846	0.0
39	Lu, YidingCM	2037	USA	+45B	=9N	+32B	F	F	2.5	8.0	8.0	6.25	2076	+5.2
40	Kou, Jeffrey	0	USA	=31N	−44B	−46N	+68B	+64N	2.5	7.5	8.0	2.75	1684	0.0
41	Yuodelis, Kenneth	1727	USA	−2N	+61B	−5N	+49B	−38N	2.0	12.5	14.0	3.50	1769	+8.8
42	Ganesan, Vidur	1556	USA	−10N	+60N	+66B	−5B	−20N	2.0	12.0	13.0	2.50	1717	+38.0
43	Gao, Ziqian	1676	USA	+23N	=11B	−18N	F	=33B	2.0	12.0	12.0	6.00	1832	+32.4
44	Lin, Michael	1851	USA	F	+40N	+36B	−6N	−25B	2.0	12.0	12.0	5.00	1816	-7.6
45	Nam, Jinmo	1773	USA	−39N	+70B	+23N	−18B	−21N	2.0	11.5	12.0	3.50	1698	-21.2
46	Bharathy Mohan, Aarav Sai	1703	USA	=55B	−6N	+40B	−25N	=61B	2.0	11.0	12.5	4.00	1677	-4.9
47	Karthik Bimod	1871	IND	+51B	+58N	−6B	−24N	F	2.0	10.5	10.5	3.50	1796	-16.0
48	Rubaiyat, Rhadean	1644	USA	−15B	+59N	−16B	+73N	−22B	2.0	10.5	10.5	1.50	1600	-17.2
49	Guo, Loida	1517	USA	=24B	−36N	=34B	−41N	+67B	2.0	10.0	10.5	3.25	1638	+29.6
50	Ren, Guanyu	1755	USA	−1N	=67B	+57N	−31B	=59N	2.0	9.5	10.0	2.50	1660	-26.8
51	Velea, StephanieWCM	1728	USA	−47N	=69N	+55B	=38B	−19N	2.0	9.0	9.5	3.00	1499	-33.2
52	Davies, Cedric	1707	USA	+60B	−10B	=30N	−14N	−34B	1.5	12.0	13.5	2.75	1633	-20.0
53	Zhang, Iris Runyi	1591	USA	=28B	−32N	−35N	+65B	−37B	1.5	10.0	11.0	2.25	1562	-7.6
54	Maharaja, Imai Subramonia	1577	USA	−20N	=35B	−27N	−60B	+68N	1.5	9.5	10.0	1.75	1389	-31.6
55	Fondren, Chad S	0	USA	=46N	−23B	−51N	+72B	−35N	1.5	9.5	9.5	1.00	1576	0.0
56	Nerella, Abhiram	0	USA	=33N	−31B	=62N	−23B	=70B	1.5	9.0	9.5	2.00	1568	0.0
57	He, Oliver Lang	1609	USA	−66B	=37N	−50B	−34N	+72N	1.5	8.0	8.0	1.25	1562	-12.8
58	Raj, Skandha	1594	USA	F	−47B	−33N	+63B	=60N	1.5	7.0	7.0	1.75	1684	+16.0
59	Yang, Jimmy	1485	USA	−30N	−48B	+70N	F	=50B	1.5	7.0	7.0	1.50	1594	+20.0
60	Wang, Leonardo Xirui	1796	SGP	−52N	−42B	F	+54N	=58B	1.5	6.5	6.5	2.25	1521	-58.4
61	Wu, Shanna	1798	USA	−38B	−41N	+72B	F	=46N	1.5	6.5	6.5	1.00	1702	-15.6
62	Kottcamp, Jeff	0	USA	=6B	−13N	=56B	−22N	F	1.0	12.0	12.0	2.75	1641	0.0
63	Cheng, Selina	1650	USA	+14B	−8N	−20B	−58N	F	1.0	11.5	11.5	3.50	1575	-15.6
64	Shahad, Nabil	1723	CAN	−3B	+72N	F	−32N	−40B	1.0	9.0	9.0	0.00	1736	-2.4
65	Mulye, Tejas	1680	USA	F	−12N	−25B	−53N	+73B	1.0	8.0	8.0	0.00	1548	-28.8
66	Ackerman, Ryan	1754	USA	+57N	−2B	−42N	F	F	1.0	7.5	7.5	1.50	1589	-13.4
67	Wu, Harry	1722	USA	−9B	=50N	−14B	F	−49N	0.5	11.0	11.0	1.00	1424	-54.0
68	Kelkar, Soham	0	USA	=36B	−24N	−37B	−40N	−54B	0.5	10.5	12.0	1.25	1347	0.0
69	Mohan, Vishnu	1748	USA	−7N	=51B	−21N	F	F	0.5	8.5	8.5	1.00	1530	-35.6
70	Yuan, Chen	1607	USA	−16B	−45N	−59B	F	=56N	0.5	8.0	8.0	0.75	882	-48.4
71	Lavoice, Richard	1835	USA	=22B	F	−29N	F	F	0.5	5.5	5.5	1.50	1375	-46.0
72	Das, Sambuddha Sekhar	1677	USA	−5N	−64B	−61N	−55N	−57B	0.0	8.5	9.5	0.00	929	-68.8
73	Chang, Allen	1510	USA	−19N	F	F	−48B	−65N	0.0	6.0	6.0	0.00	873	-34.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Pai, VihaanUSA
+76.4
3.0 pts · #16
2Yondon, OdbayarUSA
+69.6
4.0 pts · #5
3Frederick, BenjaminUSA
+66.8
2.5 pts · #27

Top rating losers

1Das, Sambuddha SekharUSA
-68.8
0.0 pts · #72
2Wang, Leonardo XiruiSGP
-58.4
1.5 pts · #51
3Wu, HarryUSA
-54.0
0.5 pts · #70

Biggest upsets

R2+325 Elo gap
Frederick, Benjamin1626 beat Gavrish, Leonid1951
R5+290 Elo gap
Yondon, Odbayar1785 beat Gottumukkala, Ananth2075
R3+282 Elo gap
CMJammalamadaka, Vihaan1977 beat Siddarth, M2259