CChessStats

The Confluence Open

Open SwissStandard

26 players participated in this 5-round tournament, held from 12 Dec 2025 to 14 Dec 2025 in St. Louis, MO, United States. 5 titled players from 4 federations. Top 10 Elo average was 2107, and top seed was Francesco Sonis (🇮🇹 ITA, GM, 2560).

Anna M. Sargsyan (🇺🇸 USA, IM, 2379) won with 4.0/5, ahead of Tianqi Wang (4.0) and Francesco Sonis (4.0). Sargsyan shared the lead from round 1, winning on tie-break.

The biggest upset came in round 4: Finn Pagliarini (1636) beat Ben Fabrikant (1870), a +234-point gap.

Location
🇺🇸St. Louis, MO, United States
Dates
12 Dec 2025 → 14 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇮🇹GMFrancesco Sonis2560
Avg top 10
2,107
Participants
26
Titled players · 5
GM×1
IM×2
WFM×1
WCM×1
Federations · 4 represented
🇺🇸United States of America×22
🇮🇹Italy×1
🇰🇷South Korea×1
🇮🇳India×1
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 4 players tied at 4.0/5, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 4 at the finish.

Co-leaders
8
4
2
3
4
1.52.545R1R2R3R4R5
Sargsyan4Suddala4Sonis4Wang4Shoaf3.5Wadhwa3.5
R5 · TIEBREAK CLUSTER

4 players finish on 4.0/5. Sargsyan takes the title on Buchholz Cut1 (15.0).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

IM Anna M. Sargsyan beat Anish Suddala (Black).

WIN STREAKS · 3 top finishers

IM Anna M. Sargsyan 3 wins (R1–R3)Anish Suddala 3 wins (R3–R5)GM Francesco Sonis 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1IMAnna M. Sargsyan*
1
—
½
2Anish Suddala
0
*——
3GMFrancesco Sonis——*
½
4IMTianqi Wang
½
—
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Sargsyan, Anna M.IM2379USA+6B+4N+10B=2N=5B4.015.017.513.752310-1.6
2Wang, TianqiIM2359USA+15N+7B+11N=1B=3B4.013.015.011.002428+5.0
3Sonis, FrancescoGM2560ITA=9N+13B+14N+16B=2N4.010.512.59.252403-5.2
4Suddala, Anish1803USA+23N−1B+20N+12B+8N4.010.010.06.002002+39.2
5Wadhwa, Aayush1967USAF+9B+12N+11B=1N3.510.510.58.502378+71.2
6Shoaf, Riley M1937USA−1N+22B+23B=10N+12B3.59.09.03.752060+34.0
7Fabrikant, Ben1870USA+20B−2N+17B−8N+11N3.010.511.54.501902+3.6
8Pagliarini, Finn1636USA−11N+24B+25N+7B−4B3.09.09.03.001825+45.6
9Kim, Yejun1848KOR=3B−5N−13N+22B+15N2.511.512.04.501874-0.4
10Toshali, VWFM2055IND+22BF−1N=6B+13N2.510.010.04.252081+2.8
11Tkachenko, Erik2041USA+8B+17N−2B−5N−7B2.013.515.04.501828-25.8
12Logozar, Elijah1912USA+24N+25B−5B−4N−6N2.011.011.00.001687-26.8
13Pikus, Matthew1915USAF−3N+9B+26N−10B2.09.09.02.501987+5.6
14Wadhwa, AnanyaWCM1857USAF=19N−3B=17N+18B2.08.58.53.001890+3.2
15Bunetic, Brennan0USA−2B−20N+24B+23N−9B2.07.57.50.0017920.0
16FIDE 399556300—F+18B+21N−3NF2.06.56.52.5021260.0
17Goddard, Paul J1661USAF−11B−7N=14B+23N1.57.07.01.001726+4.0
18Shi, Albert1692USA−21B−16N=22N+20B−14N1.56.06.51.251592-10.0
19Wilson, Matthew1949USAF=14BF+21NF1.53.03.02.001857-2.6
20Ajoykumar, Aarud0USA−7N+15B−4B−18NF1.010.510.52.009880.0
21Kamesh, Varun0USA+18NF−16B−19BF1.05.05.01.5018210.0
22McKinney, Daniel1712USA−10N−6N=18B−9NF0.510.010.00.751561-27.6
23Goldschmidt, Steven1483USA−4BF−6N−15B−17B0.011.011.00.00982-9.6
24Fang, Andrew1479USA−12B−8N−15NFF0.07.07.00.00958-14.8
25Sena, Ethan1577USAF−12N−8BFF0.05.05.00.00974-21.6
26Wonsidler, Paul1729USAFFF−13BF0.02.02.00.001115-10.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets