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25th Addison Memorial Tournament - 2000 and Over

Open SwissStandard

23 players participated in this 4-round tournament, held from 02 May 2026 to 03 May 2026 in San Francisco, CA, United States. 1 titled players from 2 federations. Top 10 Elo average was 1940, and top seed was Christopher Woojin Yoo (🇺🇸 USA, GM, 2607).

Christopher Woojin Yoo (🇺🇸 USA, GM, 2607) won with 3.5/4, ahead of Theodore Biyiasas (3.5) and Reyansh Paragiri (3.0). Yoo shared the lead from round 1, winning on tie-break.

The biggest upset came in round 2: Tapas Aarav Natraj (1769) beat Jed L. De Varo (2100), a +331-point gap.

Location
🇺🇸San Francisco, CA, United States
Dates
02 May 2026 → 03 May 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Top seed
🇺🇸GMChristopher Woojin Yoo2607
Avg top 10
1,940
Participants
23
Titled players · 1
GM×1
Federations · 2 represented
🇺🇸United States of America×22
🇮🇪Ireland×1
Top 3

How it unfolded

Top 6 · 4 rounds

Tight race until R4; 2 players tied at 3.5/4, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
8
4
5
2
1234R1R2R3R4
R4 · TIEBREAK CLUSTER

2 players finish on 3.5/4. Yoo takes the title on Buchholz Cut1 (7.5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1GMChristopher Woojin Yoo*—
½
—
2Theodore Biyiasas—*——
3Reyansh Paragiri
½
—*—
4Anthony Vladimir Ivanenko———*

Grille américaine

#PlayerEloFedR1R2R3R4PtsBu C1BuSBPerfΔ
1Yoo, Christopher WoojinGM2607USA+15N+11B=3N+5B3.57.59.07.502543-1.8
2Biyiasas, Theodore2000USA+18N+13B=5N+7B3.56.57.05.752104+7.0
3Paragiri, Reyansh1975USA+20B+10N=1B=6N3.08.08.55.502097+22.4
4Ivanenko, Anthony Vladimir1777USA+19B−5N+22B+10N3.05.05.53.001917+14.2
5Chin, Zee1850USA+12N+4B=2B−1N2.510.012.06.752037+34.8
6Natraj, Tapas Aarav1769USA=7N+14B=11N=3B2.57.59.05.251986+42.8
7DB, Pranav1712USA=6B+15N+17B−2N2.57.58.53.751924+43.6
8Indukuri, Suhas1727USA=14N=21B+13N=12B2.55.05.53.501927+38.4
9Yu, Andrew1588USA−10B=20N+18N+16B2.53.54.01.751832+52.0
10Spence, Beckett1735IRL+9N−3B+21N−4B2.08.59.03.001771+6.8
11Naga Abhi Ram Ponnaluri1776USA+16B−1N=6B=22N2.07.07.52.501823+5.2
12Raghav, Surya1742USA−5B+19N=14B=8N2.06.57.02.501839+17.6
13Krishnan, Sreyshthaa1743USA+23B−2N−8B=14N1.57.58.01.251800+6.4
14De Varo, Jed L.2100USA=8B−6N=12N=13B1.57.08.53.001658-82.8
15Melville, Cailen1764USA−1B−7B=19N+18B1.56.57.00.751743-5.4
16Nalakonda, Anish1711USA−11NF+23B−9N1.05.05.00.501569-22.8
17Yi, Colin1781USAFF−7N+21B1.03.03.00.501728-6.0
18Yenamandra, Srinadh1767USA−2B=23N−9B−15N0.57.58.00.251446-60.4
19Chakrabarty, Preron1677USA−4N−12B=15BF0.56.56.50.751488-26.0
20Zhang, Matthew1736USA−3N=9BFF0.55.55.51.251589-16.0
21Perlov, Daniel1744USAF=8N−10B−17N0.55.55.51.251475-19.6
22Long, Youting1634USAFF−4N=11B0.55.05.01.001584-4.8
23Oza, Nikunj1719USA−13N=18B−16NF0.53.03.00.251467-18.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
25th Addison Memorial Tournament - 2000 and Over — San Francisco, CA, United States | Chess Tournament Results | ChessStats