2026 U. S. Women's Open

Open SwissStandard

60 players participated in this 5-round tournament, held from 10 Jun 2026 to 11 Jun 2026 in Las Vegas, NV, United States. 12 titled players from 8 federations. Top 10 Elo average was 2028, and top seed was Megan Lee (🇺🇸 USA, FM, 2274).

Davaakhuu Munkhzul (🇲🇳 MGL, WIM, 2174) won with 4.5/5, ahead of Bahar Hallaeva (4.0) and Carla Heredia Serrano (4.0). Munkhzul broke clear in the final round.

The biggest upset came in round 5: Norovsambuu Badamkhand (WFM, 1849) beat Megan Lee (FM, 2274), a +425-point gap.

Location

🇺🇸Las Vegas, NV, United States

Dates

10 Jun 2026 → 11 Jun 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 5 rounds

Top seed

🇺🇸FMMegan Lee2274

Avg top 10

2,028

Participants

Titled players · 12

FM×1

WGM×1

WIM×2

WFM×6

WCM×2

Federations · 8 represented

🇺🇸United States of America×30

🇲🇳Mongolia×3

🇵🇭Philippines×1

🇪🇨Ecuador×1

🇮🇳India×1

🇬🇧England×1

🇹🇭Thailand×1

🇹🇲Turkmenistan×1

Top 3

🥇
WIMDavaakhuu Munkhzul
🇲🇳MGL·2174
4.5pts·2209perf+4.8
🥈
WFMBahar Hallaeva
🇹🇲TKM·2171
4.0pts·2095perf-3.6
🥉
WGMCarla Heredia Serrano
🇪🇨ECU·2111
4.0pts·2131perf+6.0

How it unfolded

Top 6 · 5 rounds

WIM Davaakhuu Munkhzul led from R5; +0.5-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R5.

Co-leaders

Munkhzul4.5Saikhanchimeg4Heredia Serrano4Chen4Rajaram4Hallaeva4

R5–R5 · LEAD HELD

WIM Davaakhuu Munkhzul held the sole lead from R5 through R5 without losing it.

WIN STREAKS · 2 top finishers

WIM Davaakhuu Munkhzul 3 wins (R1–R3)WGM Carla Heredia Serrano 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1WIMDavaakhuu Munkhzul	*	—	—	—
2WFMTsogtsaikhan Saikhanchimeg	—	*	—	—
3WGMCarla Heredia Serrano	—	—	*	½
4WFMJocelyn Chen	—	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Munkhzul, DavaakhuuWIM	2174	MGL	+28B	+13N	+35B	=2N	+24B	4.5	12.5	14.5	12.50	2209	+4.8
2	Hallaeva, BaharWFM	2171	TKM	+16N	+10B	=5N	=1B	+13N	4.0	15.0	18.0	13.75	2095	-3.6
3	Heredia Serrano, CarlaWGM	2111	ECU	+29N	+18B	+9N	=7B	=5N	4.0	14.0	16.5	12.75	2131	+6.0
4	Saikhanchimeg, TsogtsaikhanWFM	2029	MGL	+19N	+37B	=14N	=8B	+15N	4.0	12.5	14.5	11.25	1923	-8.2
5	Chen, JocelynWFM	1891	USA	+42N	+34B	=2B	+27N	=3B	4.0	12.5	14.5	10.50	2171	+56.8
6	Rajaram, AnikaWCM	1866	USA	+39N	=43B	=33N	+34B	+16N	4.0	9.0	11.0	9.00	1798	-9.2
7	Lee, MeganFM	2274	USA	+21B	+31N	+12B	=3N	−11B	3.5	14.0	16.5	11.00	2070	-18.0
8	Sapuan, Arleah Cassandra	1636	PHI	+52N	+20B	=27B	=4N	=12B	3.5	13.0	14.0	9.00	1992	+34.6
9	Sandhya GoliWCM	1868	IND	+50B	+23N	−3B	+36N	=10B	3.5	12.5	13.5	7.75	1909	+3.8
10	Ganapathy, Aishwarya Lakshmi	1742	USA	+40B	−2N	+54B	+33B	=9N	3.5	11.5	12.5	6.75	1917	+32.0
11	Badamkhand, NorovsambuuWFM	1849	MGL	+26B	=33N	F	+14B	+7N	3.5	11.5	11.5	10.50	2160	+20.8
12	Zhang, Sunny	1867	USA	+47N	+36B	−7N	+37B	=8N	3.5	11.0	12.5	7.25	1909	+5.6
13	Gurrola, Kyra	0	USA	+38N	−1B	+19N	+43B	−2B	3.0	13.5	15.5	7.00	1889	0.0
14	Prabhu, Tanya G	1755	USA	+51N	+17B	=4B	−11N	=31B	3.0	13.0	14.0	7.25	1883	+26.4
15	Posadas, Rayelynn	1767	ENG	+48B	−27N	+22B	+21N	−4B	3.0	12.5	14.0	7.50	1775	+1.2
16	Mathivanan, Iniya	1424	USA	−2B	+40N	+53B	+35N	−6B	3.0	12.0	13.0	5.00	1626	+23.2
17	Joseph, Veronique	1881	USA	+22B	−14N	+28B	−24N	+41B	3.0	11.5	13.5	7.50	1735	-32.8
18	Arvind, Charithra C	1672	USA	+32B	−3N	+41B	+23N	F	3.0	11.5	11.5	7.50	1902	+32.0
19	Jiang, Olivia	1624	USA	−4B	+57N	−13B	+40N	+36B	3.0	11.0	12.0	5.00	1874	+22.4
20	Quercia, Dylan	1772	USA	+41B	−8N	F	+29N	+30B	3.0	10.5	10.5	7.00	1836	+6.6
21	Janapareddy, Sreshtha	1619	USA	−7N	+58B	+39N	−15B	+44N	3.0	10.5	10.5	4.00	1093	-15.2
22	Kaul, Anika Shambhavi	1533	USA	−17N	+51B	−15N	+38B	+33N	3.0	10.0	11.0	5.00	1643	+14.0
23	Kwan, Charmaine	1679	USA	+55N	−9B	+47N	−18B	+42N	3.0	10.0	11.0	4.50	970	-30.4
24	Budow, Sarah	1771	USA	+60N	+30B	F	+17B	−1N	3.0	10.0	10.0	5.50	2074	+22.0
25	Lee, Angelina	1525	USA	−27B	+48N	+31B	−30N	+35B	3.0	9.5	11.0	6.00	1773	+46.8
26	FIDE 39994287	0	—	−11N	+59B	−37N	+45B	+34N	3.0	9.5	9.5	4.00	1603	0.0
27	Yu, AveryWIM	1920	USA	+25N	+15B	=8N	−5B	F	2.5	13.5	13.5	7.75	1800	-20.0
28	Atikankhotchasee, ManunthonWFM	1677	THA	−1N	+38B	−17N	+39B	=32N	2.5	12.0	14.0	5.25	1179	-6.4
29	Sizova, Sophia	1561	USA	−3B	+32N	=30N	−20B	+51N	2.5	12.0	13.0	4.75	1570	-0.8
30	Xiao, Marina	1795	USA	+44B	−24N	=29B	+25B	−20N	2.5	11.5	13.5	6.25	1570	-47.2
31	Lin, Ashley	1773	USA	+58N	−7B	−25N	+50B	=14N	2.5	10.5	10.5	2.50	1545	-36.8
32	FIDE 566016444	0	—	−18N	−29B	+55N	+47B	=28B	2.5	9.5	10.5	3.75	1364	0.0
33	Yang, Emma	1656	USA	+59N	=11B	=6B	−10N	−22B	2.0	14.0	14.0	3.75	1555	-21.2
34	Chen, Megan	1709	USA	+53B	−5N	+44B	−6N	−26B	2.0	13.0	14.0	3.00	1079	-11.0
35	Xiao, Edira	1604	USA	+45N	+49B	−1N	−16B	−25N	2.0	12.5	14.0	3.50	1535	-21.6
36	Xu, Olivia	1724	USA	+46B	−12N	+50B	−9B	−19N	2.0	12.0	13.0	3.00	986	-50.4
37	Panciu, Olivia	1627	USA	+57B	−4N	+26B	−12N	F	2.0	11.5	11.5	4.00	1147	-11.2
38	FIDE 566017688	0	—	−13B	−28N	+46B	−22N	+56B	2.0	10.5	11.5	3.00	805	0.0
39	FIDE 39954714	0	—	−6B	+56N	−21B	−28N	+52B	2.0	10.5	11.5	2.00	921	0.0
40	FIDE 39924807	0	—	−10N	−16B	+59N	−19B	+53N	2.0	10.5	10.5	1.00	797	0.0
41	Gopinath, Thanisha	1579	USA	−20N	+52B	−18N	+58B	−17N	2.0	10.0	10.0	1.00	975	-30.8
42	FIDE 566012910	0	—	−5B	−53N	+52B	+48N	−23B	2.0	9.5	10.5	2.50	985	0.0
43	Panciu, Sophia	1588	USA	+56B	=6N	=49B	−13N	F	2.0	9.5	9.5	3.75	1912	+29.2
44	FIDE 566008468	0	—	−30N	+60B	−34N	+54N	−21B	2.0	8.5	8.5	1.00	1493	0.0
45	FIDE 39924840	0	—	−35B	−54N	+56B	−26N	+50N	2.0	7.0	8.0	2.00	812	0.0
46	FIDE 566017602	0	—	−36N	−47B	−38N	+55B	+58N	2.0	6.5	6.5	1.00	924	0.0
47	FIDE 566009880	0	—	−12B	+46N	−23B	−32N	=48B	1.5	11.0	12.5	2.75	973	0.0
48	FIDE 39967557	0	—	−15N	−25B	+60N	−42B	=47N	1.5	9.5	9.5	0.75	846	0.0
49	Qi, JennyWFM	1957	USA	+54B	−35N	=43N	F	F	1.5	5.0	5.0	2.00	1604	-46.8
50	FIDE 39983749	0	—	−9N	+55B	−36N	−31N	−45B	1.0	10.0	11.0	1.00	988	0.0
51	FIDE 30995272	0	—	−14B	−22N	F	+53N	−29B	1.0	9.5	9.5	1.00	816	0.0
52	FIDE 566017629	0	—	−8B	−41N	−42N	+59B	−39N	1.0	9.5	9.5	0.00	808	0.0
53	FIDE 566017637	0	—	−34N	+42B	−16N	−51B	−40B	1.0	9.0	10.0	2.00	767	0.0
54	Guan, Renee Jiayi	1620	USA	−49N	+45B	−10N	−44B	F	1.0	9.0	9.0	2.00	1050	-18.0
55	FIDE 566008212	0	—	−23B	−50N	−32B	−46N	+59N	1.0	8.5	8.5	0.00	879	0.0
56	FIDE 566017661	0	—	−43N	−39B	−45N	+57B	−38N	1.0	8.0	9.0	1.00	788	0.0
57	FIDE 566017653	0	—	−37N	−19B	F	−56N	+60B	1.0	6.0	6.0	0.00	826	0.0
58	FIDE 566007810	0	—	−31B	−21N	F	−41N	−46B	0.0	9.5	9.5	0.00	857	0.0
59	FIDE 566017670	0	—	−33B	−26N	−40B	−52N	−55B	0.0	8.0	9.0	0.00	856	0.0
60	FIDE 566017645	0	—	−24B	−44N	−48B	F	−57N	0.0	7.5	7.5	0.00	971	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Chen, JocelynWFMUSA
+56.8
4.0 pts · #5
2Lee, AngelinaUSA
+46.8
3.0 pts · #19
3Sapuan, Arleah CassandraPHI
+34.6
3.5 pts · #11

Top rating losers

1Xu, OliviaUSA
-50.4
2.0 pts · #52
2Xiao, MarinaUSA
-47.2
2.5 pts · #23
3Qi, JennyWFMUSA
-46.8
1.5 pts · #22

Biggest upsets

R5+425 Elo gap
WFMBadamkhand, Norovsambuu1849 beat FMLee, Megan2274
R2+353 Elo gap
Xiao, Edira1604 beat WFMQi, Jenny1957
R3+248 Elo gap
Lee, Angelina1525 beat Lin, Ashley1773