2025 Chicago Summer Open - Major

SwissStandard

45 players participated in this 5-round tournament, held from 20 Jun 2025 to 22 Jun 2025 in Schaumburg, IL, United States. 13 titled players from 4 federations. Top 10 Elo average was 2257, and top seed was Praveen Balakrishnan (🇺🇸 USA, GM, 2496).

Gurugrahan Gurumoorthi (🇺🇸 USA, 1837) won with 4.0/5, ahead of Praveen Balakrishnan (4.0) and Justin Lee (4.0). Gurumoorthi won on tie-break after catching the field in the final round.

The biggest upset came in round 1: Aryan Shrigadi (1846) beat Aidan Baker (2130), a +284-point gap.

Location

🇺🇸Schaumburg, IL, United States

Dates

20 Jun 2025 → 22 Jun 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 5 rounds

Top seed

🇺🇸GMPraveen Balakrishnan2496

Avg top 10

2,257

Participants

Titled players · 13

GM×1

IM×2

FM×4

CM×2

WFM×1

WCM×3

Federations · 4 represented

🇺🇸United States of America×41

🇲🇳Mongolia×2

🇮🇳India×1

🇨🇺Cuba×1

Top 3

🥇
Gurugrahan Gurumoorthi
🇺🇸USA·1837
4.0pts·2235perf+100.4
🥈
GMPraveen Balakrishnan
🇺🇸USA·2496
4.0pts·2422perf-2.0
🥉
Justin Lee
🇺🇸USA·1970
4.0pts·2187perf+40.8

How it unfolded

Top 6 · 5 rounds

Tight race until R3; 3 players tied at 4.0/5, decided on Buchholz.

Co-leaders

Balakrishnan4Gurumoorthi4Lee4Wisniowski3.5Baker3.5Rivedal3

R3–R5 · LEAD HELD

GM Praveen Balakrishnan held the sole lead from R3 through R5 without losing it.

R5 · TIEBREAK CLUSTER

3 players finish on 4.0/5. Gurumoorthi takes the title on Buchholz Cut1 (9.5).

R2–R4 · WIN STREAK

GM Praveen Balakrishnan won 3 in a row (R2–R4).

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Gurumoorthi, Gurugrahan	1837	USA	+15N	=19B	=6B	+24N	+27B	4.0	9.5	11.5	9.00	2235	+100.4
2	Balakrishnan, PraveenGM	2496	USA	=13N	+22B	+18B	+23N	=16B	4.0	9.0	11.0	8.50	2422	-2.0
3	Lee, Justin	1970	USA	+35B	+38N	−16B	+18N	+6B	4.0	9.0	10.0	7.50	2187	+40.8
4	Baker, Aidan	2130	USA	−7N	+34B	+20N	=5B	+14N	3.5	11.0	12.5	7.75	2003	-26.0
5	Wisniowski, NatalieWCM	1893	USA	−29N	+41B	+40B	=4N	+19N	3.5	8.5	8.5	4.75	2184	+35.8
6	Rivedal, Andrew	1967	USA	+36N	=7B	=1N	+21B	−3N	3.0	13.0	14.5	7.00	1959	-2.0
7	Shrigadi, Aryan	1846	USA	+4B	=6N	=19N	+8B	−23B	3.0	11.5	13.5	9.00	2137	+72.0
8	Srivatsan Sekar	1880	IND	+14B	−18N	+35B	−7N	+20N	3.0	9.5	11.0	6.00	1843	-4.0
9	Szpisjak, Steven	1898	USA	=20B	=21N	+28B	−27N	+25B	3.0	8.0	10.0	6.00	1974	+10.6
10	Das, Debarghya	1931	USA	=34N	=20B	=33N	=26B	+18N	3.0	7.5	9.0	5.50	1896	-9.2
11	Li, Aiden LinyuanCM	1974	USA	−33N	+36B	=26N	+22B	=30N	3.0	7.5	9.0	5.50	1971	-0.4
12	Campos Jimenez, Augusto CesarIM	2267	CUB	F	F	+13N	+19B	+39N	3.0	5.5	5.5	5.50	2904	+9.6
13	Liang, Ethan Y	1834	USA	=2B	+17N	−12B	−14N	+33B	2.5	12.0	13.5	6.00	2005	+36.8
14	Zhang, Ryan	1811	USA	−8N	=15B	+44N	+13B	−4B	2.5	11.5	11.5	3.75	1915	+26.0
15	Adhikari, Sunav	1958	USA	−1B	=14N	+37B	+33N	F	2.5	9.5	9.5	4.25	1888	-14.4
16	Deviprasath, SharveshFM	2429	USA	F	F	+3N	+39B	=2N	2.5	9.0	9.0	7.00	2545	+4.9
17	Indusekar, Akshay	1961	USA	=21N	−13B	=34N	=32B	+40N	2.5	8.0	9.0	3.75	1811	-19.8
18	Kaur, AradhWFM	1790	USA	+45N	+8B	−2N	−3B	−10B	2.0	14.0	14.0	3.00	1902	+19.2
19	Bayarmandakh, BalganFM	2154	MGL	+25B	=1N	=7B	−12N	−5B	2.0	13.5	15.5	5.50	1883	-33.6
20	Pullabhotla, Abhinav	1926	USA	=9N	=10N	−4B	+35N	−8B	2.0	12.5	14.0	4.50	1767	-33.6
21	Elferachi, Said	1899	USA	=17B	=9B	+31N	−6N	F	2.0	10.5	10.5	4.75	1954	+12.4
22	Starkman, Eric	1860	USA	=30B	−2N	+43B	−11N	=37B	2.0	10.5	10.5	1.75	1879	-0.4
23	Singh, HershFM	2195	USA	F	F	+29N	−2B	+7N	2.0	9.0	9.0	5.00	2391	+15.6
24	Mallela, Abhishek	1948	USA	+41N	+33B	−39N	−1B	−26N	2.0	8.5	8.5	1.50	1846	-15.8
25	Gu, Samuel	1930	USA	−19N	+42B	−30N	+34B	−9N	2.0	8.5	8.5	1.50	1927	-2.4
26	Lavanur, Mahendra	1825	USA	F	F	=11B	=10N	+24B	2.0	8.0	8.0	5.00	2076	+40.8
27	Hanke, Harvey	1946	USA	F	F	+38B	+9B	−1N	2.0	8.0	8.0	4.00	1987	+6.0
28	Pena, Faris Adan	1807	USA	+42N	−29B	−9N	+38B	−31N	2.0	8.0	8.0	1.00	1920	+24.4
29	Schmakel, SamIM	2456	USA	+5B	+28N	−23B	F	F	2.0	7.5	7.5	5.50	2227	-6.6
30	Khanbutaev, Artemii	2139	USA	=22N	F	+25B	F	=11B	2.0	7.0	7.0	4.50	2046	-13.2
31	Platnick, Elijah	1991	USA	F	F	−21B	+36N	+28B	2.0	5.5	5.5	3.50	1988	-0.4
32	Menon, Rohan	1781	USA	F	F	+41B	=17N	=36B	2.0	4.0	4.0	2.00	2022	+38.8
33	Gurramkonda, Varun	1788	USA	+11B	−24N	=10B	−15B	−13N	1.5	11.0	13.0	4.50	1780	-3.2
34	Zhang, KylieWCM	1792	USA	=10B	−4N	=17B	−25N	=35B	1.5	11.0	12.5	3.50	1795	-0.8
35	Tugendhaft, Samuel Eli	0	USA	−3N	+45B	−8N	−20B	=34N	1.5	10.5	10.5	0.75	1745	0.0
36	Murali, Rishi	1882	USA	−6B	−11N	+42N	−31B	=32N	1.5	10.0	10.0	1.00	1796	-22.4
37	Karthikeyan, Arnav	1734	USA	F	F	−15N	+44B	=22N	1.5	4.5	4.5	1.00	1864	+20.0
38	Zhang, Andrew	1850	USA	F	−3B	−27N	−28N	+43B	1.0	8.0	8.0	0.00	1649	-41.2
39	Ochirbat, LkhagvajamtsFM	2292	MGL	F	F	+24B	−16N	−12B	1.0	7.5	7.5	2.00	2090	-14.6
40	Wang, Gaofei	1758	USA	F	F	−5N	+43N	−17B	1.0	6.0	6.0	0.00	1709	-7.2
41	Xia, ElizabethWCM	1852	USA	−24B	−5N	−32N	F	F	0.0	7.5	7.5	0.00	1074	-55.6
42	Yu, MatthewCM	2014	USA	−28B	−25N	−36B	F	F	0.0	5.5	5.5	0.00	1073	-82.8
43	Parthasarathy, Siddharth	1647	USA	F	F	−22N	−40B	−38N	0.0	4.0	4.0	0.00	1020	-33.2
44	Ramkumar, Gautham	1773	USA	F	F	−14B	−37N	F	0.0	4.0	4.0	0.00	973	-40.0
45	Venkat, Abhyudhaya	1902	USA	−18B	−35N	F	F	F	0.0	3.5	3.5	0.00	989	-13.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Gurumoorthi, GurugrahanUSA
+100.4
4.0 pts · #2
2Shrigadi, AryanUSA
+72.0
3.0 pts · #11
3Lee, JustinUSA
+40.8
4.0 pts · #10

Top rating losers

1Yu, MatthewCMUSA
-82.8
0.0 pts · #41
2Xia, ElizabethWCMUSA
-55.6
0.0 pts · #44
3Zhang, AndrewUSA
-41.2
1.0 pts · #38

Biggest upsets

R1+284 Elo gap
Shrigadi, Aryan1846 beat Baker, Aidan2130
R3+261 Elo gap
FMSingh, Hersh2195 beat IMSchmakel, Sam2456
R5+261 Elo gap
WCMWisniowski, Natalie1893 beat FMBayarmandakh, Balgan2154