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2025 Father's Day Open - Kenobi U1800

Open SwissStandard

25 players participated in this 5-round tournament, held from 14 Jun 2025 to 15 Jun 2025 in Bellevue, WA, United States. 4 federations represented. Top 10 Elo average was 1427, and top seed was Evan Cen (🇺🇸 USA, 1690).

Hetamsaria Aadi (🇺🇸 USA, 0) won with 4.5/5, ahead of Kenneth Yuodelis (4.5) and Jinmo Nam (4.0). Aadi shared the lead from round 3, winning on tie-break.

The biggest upset came in round 4: N Naaditha Suhas Ka Wijayarathna (1498) beat Andy Chen (1646), a +148-point gap.

Location
🇺🇸Bellevue, WA, United States
Dates
14 Jun 2025 → 15 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇺🇸Evan Cen1690
Avg top 10
1,427
Participants
25
Federations · 4 represented
🇺🇸United States of America×20
FIDE (no federation)×1
🇱🇰Sri Lanka×1
🇰🇷South Korea×1
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
12
6
3
2
2
1.52.545R1R2R3R4R5
R5 · TIEBREAK CLUSTER

2 players finish on 4.5/5. Aadi takes the title on Buchholz Cut1 (14.5).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Hetamsaria Aadi drew with Kenneth Yuodelis (Black).

WIN STREAKS · 3 top finishers

Hetamsaria Aadi 4 wins (R1–R4)Kenneth Yuodelis 4 wins (R1–R4)Evan Takayoshi 4 wins (R2–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Hetamsaria Aadi*
½
—
1
2Kenneth Yuodelis
½
*——
3Evan Takayoshi——*—
4Jinmo Nam
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Hetamsaria Aadi0USA+5N+?B+6N+3B=2N4.514.514.512.2516380.0
2Yuodelis, Kenneth0USA+16N+17B+7N+12B=1B4.511.012.510.2516430.0
3Nam, Jinmo0USA+9B+?N+8B−1N+7B4.013.013.08.5016360.0
4Takayoshi, Evan0USA−13B+14N+19N+11B+5N4.09.511.09.0016200.0
5Wijayarathna, N Naaditha Suhas Ka1498SRI−1B+20N+22B+8N−4B3.012.513.55.002446+28.0
6Cen, Evan1690USA+14B+13N−1B=9N=10N3.011.513.56.501604-4.8
7Maharaja, Imai Subramonia1563USA+20B+24N−2B+13N−3N3.011.512.03.502241+13.2
8Chen, Andy1646USA+18N+15B−3N−5B+21N3.010.511.54.50698-28.0
9Hetamsaria, Aayan0FID−3N+21B+15N=6B−12N2.511.012.04.5014730.0
10He, Oliver Lang1604USA−17N+16B+18NF=6B2.57.57.54.501690+4.8
11Das, Sambuddha Sekhar1679USAF+25N=12B−4N+22B2.57.07.02.001642-2.0
12Raja, Rian1642USAF=19B=11N−2N+9B2.011.011.04.501591-5.6
13Evin, Terrick0USA+4N−6B+?N−7BF2.010.010.04.0014750.0
14Ghosh, Snehil0USA−6N−4B+?B−21N+24B2.08.58.50.5015660.0
15Kim, Logan Gawon0KOR+?B−8N−9B+18B−?N2.07.07.01.507960.0
16Ao, Ethan0USA−2B−10N=20B=24N=17B1.59.510.01.5013300.0
17Roy Chowdhury, Avyaan0USA+10B−2N−?B−22N=16N1.59.59.53.2515620.0
18FIDE 399845590—−8B+?N−10B−15N=20N1.58.58.50.508250.0
19Chang, Allen1502USA+23B=12N−4BFF1.57.07.02.001642+7.6
20Wang, Harvey0USA−7N−5B=16NF=18B1.09.09.01.507310.0
21Ma, Ziliang0USA−?N−9NF+14B−8B1.07.57.52.007960.0
22Chaudhuri, Arihant0USA−?BF−5N+17B−11N1.07.07.01.507660.0
23Li, Anyi0USA−19NF+24B−?B−?N1.02.02.00.5013710.0
24Byelashova, Darya1442USAF−7B−23N=16B−14N0.57.57.50.75763-13.2
25FIDE 399195440—F−11BFFF0.02.52.50.008790.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
2025 Father's Day Open - Kenobi U1800 — Bellevue, WA, United States | Chess Tournament Results | ChessStats