CChessStats

2026 May Grand Knights FIDE Challenge - Open

Open SwissStandard

22 players participated in this 5-round tournament, held from 16 May 2026 to 17 May 2026 in Bellevue, WA, United States. 2 titled players from 4 federations. Top 10 Elo average was 1832, and top seed was William Summerfield (🇺🇸 USA, 2148).

William Summerfield (🇺🇸 USA, 2148) won with 4.5/5, ahead of Leonardo Xirui Wang (4.0) and Aaqil Alpuri (3.5). Summerfield won solo starting round 4.

Location
🇺🇸Bellevue, WA, United States
Dates
16 May 2026 → 17 May 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇺🇸William Summerfield2148
Avg top 10
1,832
Participants
22
Titled players · 2
CM×1
WFM×1
Federations · 4 represented
🇺🇸United States of America×18
🇸🇬Singapore×1
🇨🇦Canada×1
🇹🇭Thailand×1
Top 3

How it unfolded

Top 6 · 5 rounds

William Summerfield led from R4; +0.5-point edge over the runner-up.

Co-leaders
6
3
3
1
1
1.52.545R1R2R3R4R5
Summerfield4.5Wang4Alpuri3.5Palathingal3Rish-Brown3Narkhede3
R4–R5 · LEAD HELD

William Summerfield held the sole lead from R4 through R5 without losing it.

R1–R5 · UNBEATEN

William Summerfield went unbeaten across 5 games (R1–R5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1William Summerfield*—
½
1
2Leonardo Xirui Wang—*—
0
3Aaqil Alpuri
½
—*
0
4CMRafael Palathingal
0
1
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Summerfield, William2148USA+7N+11B=3N+8B+4B4.512.014.012.252227+12.4
2Wang, Leonardo Xirui1837SGP+5N+21B−4B+6N+15B4.011.011.08.001780-4.8
3Alpuri, Aaqil2005CAN+6B+18N=1B−4N+8B3.513.014.59.252005+2.4
4Palathingal, RafaelCM1989USAF+16B+2N+3B−1N3.014.014.09.502119+28.0
5Rish-Brown, Jackson1570USA−2B+22N=11N+14B=9N3.010.510.54.251770+52.8
6Chung, Warren0USA−3N+20B+21N−2B+12N3.010.510.53.0016920.0
7Narkhede, Kshitij0USA−1B−12N+22B+20N+13B3.09.59.53.0017150.0
8Bharathy Mohan, Aarav Sai1822USA=13B+10N+14B−1N−3N2.512.514.55.501798-7.6
9Liu, Bichen1738USA=10B=17N+12B−15N=5B2.59.511.05.501682-12.4
10Rish-Brown, Jacob1613USA=9N−8B=13N+16B=19N2.59.010.55.001685+19.2
11Nallappa, Vijay1729USA+12N−1N=5B=19BF2.011.011.04.251723-5.6
12Lai, Ryan1608USA−11B+7B−9N+21N−6B2.010.510.53.00934-26.4
13Rao, Deepak Sri Kartikeya1568USA=8N−14N=10B+17B−7N2.010.011.54.001661+18.8
14Glaser, Liam P1654USA=17N+13B−8N−5N=18B2.09.010.53.501567-24.8
15FIDE 399875400—FF+16N+9B−2N2.08.58.54.5017830.0
16Pande, Aryan1713USA+22B−4N−15B−10N+21B2.07.57.50.001587-21.6
17Sreraman, Rahul1555USA=14B=9B=19N−13NF1.58.08.03.001549-2.4
18Atikankhotchasee, ManunthonWFM1680THA+20N−3BFF=14N1.56.56.52.001637-3.4
19Khudyev, Elina Umi1584USAFF=17B=11N=10B1.56.06.03.001632+7.6
20Ivanov, Matvei0USA−18B−6NF−7B+22N1.07.57.50.0016070.0
21Memangalam Balasubramani, Mohan Kumar0USAF−2N−6B−12B−16N0.011.011.00.009190.0
22Sreraman, Rohit1534USA−16N−5B−7NF−20B0.09.09.00.00842-28.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers