CChessStats

2026 May Poison Pawns - Championship

Open SwissStandard

32 players participated in this 5-round tournament, held from 01 May 2026 to 03 May 2026 in Houston, TX, United States. 2 titled players from 3 federations. Top 10 Elo average was 1979, and top seed was Joshua Daniel Ruiz Castillo (🇨🇴 COL, GM, 2472).

Anish Vivekananthan (🇺🇸 USA, IM, 2407) won with 4.0/5, ahead of Joshua Daniel Ruiz Castillo (3.5) and Neil Gani (3.5). Vivekananthan broke clear in the final round.

The biggest upset came in round 5: Nguyen Tran (1592) beat Leonel Bee (1796), a +204-point gap.

Location
🇺🇸Houston, TX, United States
Dates
01 May 2026 → 03 May 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
Avg top 10
1,979
Participants
32
Titled players · 2
GM×1
IM×1
Federations · 3 represented
🇺🇸United States of America×30
🇨🇴Colombia×1
🇿🇼Zimbabwe×1
Top 3

How it unfolded

Top 6 · 5 rounds

IM Anish Vivekananthan led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.

Co-leaders
6
3
2
3
1
1.52.545R1R2R3R4R5
R5–R5 · LEAD HELD

IM Anish Vivekananthan held the sole lead from R5 through R5 without losing it.

R2–R4 · WIN STREAK

Eric Alexander Dumitru won 3 in a row (R2–R4).

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Vivekananthan, AnishIM2407USA+16N=7B+18N=2B+15N4.010.512.59.252340-0.9
2Ruiz Castillo, Joshua DanielGM2472COL+10B=3N+24B=1N=4B3.513.514.59.002349-3.5
3Gani, Neil0USA+6N=2B8N+21B+24N3.510.511.57.2519170.0
4Dumitru, Eric Alexander1906USAF+27N+17B+15B=2N3.58.58.56.752265+62.0
5Wu, Zekai B1794USA27B+32N=12B+30N+17B3.56.06.03.751825+8.4
6Vadher, Devaj M1730USA3B+10N=20B+25N=9B3.010.511.55.751980+52.4
7Bee, Karstein1808USAF=1N+25B=11N+16B3.09.59.56.252075+50.8
8Johnson, Emerson Aurelius1894USAF16B+3B=13N+11B2.510.510.57.251778-18.8
9Walker, Locke Scovell1758USA+12B17N11B+29N=6N2.510.011.05.001718-10.8
10Seelam, Tanish1728USA2N6B+26N+28B=14N2.510.011.03.251776+7.6
11Nguyen, Thanh1760USAF+28B+9N=7B8N2.59.09.05.001896+29.2
12Vadher, Preash Mayank1618USA9N+26B=5N24B+31N2.58.08.53.251669+13.6
13Zhang, Alicia S1810USA=30N=22B=21N=8B=18N2.57.58.04.001740-18.8
14Iskandarov, Elvin1628USA+26B15B19N+32N=10B2.57.57.52.251723+22.4
15Chetlapalli, Vishnu1984USAF+14N+16B4N1B2.012.012.04.501921-14.4
16Thomas, Michael D1765USA1B+8N15N+22B7N2.011.513.04.001848+16.4
17Yang, Ningxiu Matthew1639USAF+9B4N+19B5N2.011.511.54.501763+24.8
18Yao, Annie1677USAF+31N1B=20N=13B2.09.09.02.751828+27.6
19Tran, Nguyen1592USAFF+14B17N+25B2.05.55.53.501813+35.2
20Phillips, Rene1866USAF+30B=6N=18BF2.05.55.53.001819-7.2
21Wilder, Daniel Gregory1702USAF25N=13B3N+30B1.57.57.51.751761+4.8
22Billings, Matthew1751USAF=13N+29B16NF1.55.55.52.251806+9.2
23Rodenstein, Alan1545USAF29NF=31B+28B1.52.52.51.251715+12.6
24Zheng, Philip T1588USAFF2N+12N3B1.09.59.52.501803+18.4
25Bee, Leonel1796USAF+21B7N6B19N1.09.59.51.501515-58.4
26Vashisth, Arav1648USA14N12N10BF+32B1.07.57.50.001466-37.6
27Chipfurutse, Alois1786ZIM+5N4BFFF1.07.07.03.501850+3.4
28Swain, Hridarsh1745USAF11N+31B10N23N1.07.07.00.501455-60.0
29Riley, Nathaniel1843USAF+23B22N9BF1.05.55.51.501560-44.0
30Jawaghar, Jeevanth1676USA=13B20NF5B21N0.59.59.51.251471-34.8
31Vadlamani, Arjun1558USAF18B28N=23N12B0.57.07.00.751324-41.6
32He, Jayden1661USAF5BF14B26N0.07.07.00.00890-55.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets