CChessStats

7th Donaldson Tournament - 2000 and Over

Open SwissStandard

25 players participated in this 4-round tournament, held from 06 Dec 2025 to 07 Dec 2025 in San Francisco, CA, United States. 2 titled players from 5 federations. Top 10 Elo average was 1973, and top seed was Vitalii Bachin (🇷🇺 RUS, IM, 2204).

Reyansh Paragiri (🇺🇸 USA, 1971) won with 3.5/4, ahead of Sergey Muratov (3.0) and Vitalii Bachin (3.0). Paragiri clinched sole first place in the final round.

The biggest upset came in round 2: Rudy Jr. Tia (1791) beat Harutyun Movsisyan (2156), a +365-point gap.

Location
🇺🇸San Francisco, CA, United States
Dates
06 Dec 2025 → 07 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Top seed
🇷🇺IMVitalii Bachin2204
Avg top 10
1,973
Participants
25
Titled players · 2
IM×1
FM×1
Federations · 5 represented
🇺🇸United States of America×20
🇷🇺Russia×2
🇵🇬Papua New Guinea×1
🇦🇲Armenia×1
🇨🇦Canada×1
Top 3

How it unfolded

Top 6 · 4 rounds

Reyansh Paragiri led from R4; +0.5-point edge over the runner-up.

Co-leaders
7
3
1
1
1234R1R2R3R4Paragiri takes lead
Paragiri3.5Muratov3Chua3Bachin3Videna3Sawhney3
R4 · LEADER CHANGE07 Dec

Reyansh Paragiri takes the sole lead (3.5/4).

WIN STREAKS · 2 top finishers

Reyansh Paragiri 3 wins (R2–R4)Zachary McDonald Chua 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Reyansh Paragiri*——
1
2FMSergey Muratov—*—
0
3Zachary McDonald Chua——*—
4IMVitalii Bachin
0
1
—*

Grille américaine

#PlayerEloFedR1R2R3R4PtsBu C1BuSBPerfΔ
1Paragiri, Reyansh1971USA=13B+20N+10B+3B3.56.57.56.752274+52.4
2Muratov, SergeyFM2091RUS+16N+4B−3N+7B3.08.59.56.502098+2.6
3Bachin, VitaliiIM2204RUS+21B+10N+2B−1N3.08.59.56.002162-1.3
4Videna, Daniel T1746USA+8B−2N+23B+9N3.07.58.05.002025+55.2
5Chua, Zachary McDonald1802CAN−12N+15B+24N+11N3.05.56.04.002144+68.4
6Sawhney, Yuvraj Singh1830USA=22N=7B+17N+14B3.05.05.54.001913+16.8
7Yang, Vian1838USA+19B=6N+9B−2N2.58.09.04.501968+26.0
8Indukuri, Suhas1697USA−4N=16B+22N+13N2.55.56.02.501855+33.6
9Tia, Rudy Jr.1791PNG+15N+12B−7N−4B2.07.59.03.501890+9.0
10Mallela, Abhishek1964USA+17N−3B−1N+18B2.07.58.52.001878-7.8
11Pavuluri, Vivaan1878USA=18N+22B=14N−5B2.05.56.01.751718-32.4
12Movsisyan, Harutyun2156ARM+5B−9N+25BF2.05.55.53.501908-14.2
13Seidel, Eli1830USA=1N−14B+16N−8B1.57.58.52.751727-23.6
14Ni, Leo1756USAF+13N=11B−6N1.56.56.52.501846+14.4
15Krishnan, Sreyshthaa1817USA−9B−5N=19B+22N1.56.06.51.001665-34.0
16Lee, Noah T1830USA−2B=8N−13B=19N1.07.08.01.751657-37.2
17Cheng, Kar Lun1655USA−10B+19N−6BF1.06.06.01.001733+5.2
18Naga Abhi Ram Ponnaluri1682USA=11B−21N=20B−10N1.05.06.01.501668-3.6
19Rajaram, Raghu1781USA−7N−17B=15N=16B1.05.06.01.251592-19.4
20Yi, Colin1755USAF−1B=18N=23N1.05.05.00.751676-13.2
21Chin, Zee1849USA−3N+18BFF1.04.04.01.001944+6.8
22Xu, Olivia1633USA=6B−11N−8B−15B0.57.59.01.501484-24.4
23Wang, Chase1749USAFF−4N=20B0.54.04.00.501558-19.6
24Wu, Zhuoyuan1952USAFF−5B=25N0.53.53.50.251579-38.8
25Wu, Andrew Andi1741USAFF−12N=24B0.52.52.50.251855+7.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets