75th Oregon Open - U2000
Open SwissStandard
48 players participated in this 6-round tournament, held from 30 Aug 2025 to 01 Sept 2025 in Portland, OR, United States. 4 federations represented. Top 10 Elo average was 1812, and top seed was Mehrdad Pedram (🇮🇷 IRI, 1861).
Lucas Maokhampio (🇺🇸 USA, 1593) won with 5.0/6, ahead of David E Murray (5.0) and Saahil Gupta (4.5). Maokhampio shared the lead from round 2, winning on tie-break.
The biggest upset came in round 2: Lucas Maokhampio (1593) beat Karthik Bimod (1855), a +262-point gap.
Location
🇺🇸Portland, OR, United States
Dates
30 Aug 2025 → 01 Sept 2025
Time control
Standard: 100 minutes for game with 30 seconds increment from move 1
System
Swiss · 6 rounds
Federations · 4 represented
🇺🇸United States of America×40
🇮🇳India×2
🇮🇷Iran×1
🇵🇷Puerto Rico×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsTight race until R3; 2 players tied at 5.0/6, decided on Buchholz. Title race narrowed from 4 co-leaders at R4 to 2 at the finish.
Co-leaders
17
6
1
4
2
2
R3–R6 · LEAD HELD
Lucas Maokhampio held the sole lead from R3 through R6 without losing it.
R6 · TIEBREAK CLUSTER
2 players finish on 5.0/6. Maokhampio takes the title on Buchholz Cut1 (21.5).
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Lucas Maokhampio drew with David E Murray (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Lucas Maokhampio | * | ½ | — | ½ |
| 2David E Murray | ½ | * | — | — |
| 3Benjamin Wooden Himmelman | — | — | * | — |
| 4Saahil Gupta | ½ | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Maokhampio, Lucas | 1593 | USA | +34B | +5N | +9N | =3B | +7N | =2B | 5.0 | 21.5 | 23.5 | 18.75 | 1999 | +102.0 |
| 2 | Murray, David E | 1781 | USA | +13N | =21B | +33N | +12B | +17N | =1N | 5.0 | 18.5 | 20.5 | 16.50 | 1823 | +4.0 |
| 3 | Gupta, Saahil | 1815 | USA | +37B | =10N | +36B | =1N | =5B | +11N | 4.5 | 18.0 | 20.0 | 13.75 | 1817 | +0.8 |
| 4 | Himmelman, Benjamin Wooden | 0 | USA | +44N | −12B | +28N | =6B | +23N | +10B | 4.5 | 16.5 | 18.0 | 12.50 | 1698 | 0.0 |
| 5 | Karthik Bimod | 1855 | IND | +30N | −1B | +38N | +18B | =3N | =6B | 4.0 | 19.5 | 21.5 | 12.25 | 1531 | -49.2 |
| 6 | Yuan, Chen | 1559 | USA | =11B | =14N | +39B | =4N | +24B | =5N | 4.0 | 18.5 | 20.5 | 12.75 | 1867 | +47.6 |
| 7 | Bradley, Dale K | 0 | USA | +40B | +35N | =17B | +11N | −1B | =8N | 4.0 | 18.0 | 20.0 | 11.25 | 1562 | 0.0 |
| 8 | Battistella, Edwin | 1853 | USA | =38N | =23B | =13N | +33B | +12N | =7B | 4.0 | 16.0 | 18.0 | 11.75 | 1844 | -0.8 |
| 9 | Semenov, Fedor | 1734 | USA | +46B | +43N | −1B | +22N | +15N | F | 4.0 | 14.0 | 14.0 | 9.00 | 1727 | -0.8 |
| 10 | Nicoski, Aaron M | 1767 | USA | +26N | =3B | =15N | =16B | +21N | −4N | 3.5 | 19.0 | 22.0 | 11.75 | 1902 | +37.2 |
| 11 | Houston, Noah | 0 | USA | =6N | +31B | +21N | −7B | +16N | −3B | 3.5 | 19.0 | 21.5 | 11.00 | 1729 | 0.0 |
| 12 | FIDE 39991229 | 0 | — | +47B | +4N | =24B | −2N | −8B | +29N | 3.5 | 19.0 | 19.5 | 9.00 | 1017 | 0.0 |
| 13 | Barish, Elijah | 0 | USA | −2B | +27N | =8B | =36N | =14B | +32B | 3.5 | 18.0 | 20.0 | 10.25 | 1668 | 0.0 |
| 14 | Pitre, Hanniegn | 1711 | USA | =29N | =6B | =23N | =26B | =13N | +30B | 3.5 | 16.0 | 18.5 | 10.50 | 1597 | -9.2 |
| 15 | Pedram, Mehrdad | 1861 | IRI | =33B | +22N | =10B | +42N | −9B | =19N | 3.5 | 16.0 | 18.0 | 9.50 | 1745 | -15.4 |
| 16 | Thorwe Pratik | 1848 | IND | +41B | −17N | +43B | =10N | −11B | +26B | 3.5 | 15.5 | 17.0 | 8.25 | 1768 | -7.6 |
| 17 | Gadde, Arnav | 1615 | USA | +48N | +16B | =7N | +24N | −2B | F | 3.5 | 15.5 | 15.5 | 8.50 | 1815 | +20.4 |
| 18 | Adebolu, Ademidun | 0 | USA | −22B | +40N | +35B | −5N | +42B | =20B | 3.5 | 14.5 | 16.5 | 7.75 | 1764 | 0.0 |
| 19 | Razmov, Valentin N | 1763 | USA | −43B | +25N | −22B | +35N | +41B | =15B | 3.5 | 13.5 | 15.0 | 8.75 | 1997 | +12.2 |
| 20 | Hanson, Roger Oscar | 1610 | USA | =25B | −33N | +46B | =41N | +22B | =18N | 3.5 | 13.5 | 14.5 | 8.25 | 1497 | -11.6 |
| 21 | Merriman, Dann H | 1678 | USA | +27B | =2N | −11B | +34N | −10B | =25N | 3.0 | 18.0 | 20.0 | 9.00 | 1719 | +6.8 |
| 22 | Fonseca, Kenzo | 0 | USA | +18N | −15B | +19N | −9B | −20N | +43B | 3.0 | 18.0 | 19.5 | 8.50 | 1549 | 0.0 |
| 23 | Yang, Yuchang | 1668 | USA | =39B | =8N | =14B | +37N | −4B | =24N | 3.0 | 17.0 | 19.0 | 8.25 | 1741 | +11.6 |
| 24 | Plaunty, Jiro Roland | 0 | USA | +45N | +28B | =12N | −17B | −6N | =23B | 3.0 | 16.5 | 18.0 | 7.25 | 1500 | 0.0 |
| 25 | Sharma, Vedant | 0 | USA | =20N | −19B | =29N | =28B | +44N | =21B | 3.0 | 15.0 | 16.5 | 7.25 | 1653 | 0.0 |
| 26 | Das, Sambuddha Sekhar | 1565 | USA | −10B | +37N | =41B | =14N | +36B | −16N | 3.0 | 14.5 | 16.5 | 6.75 | 1677 | +27.6 |
| 27 | Liu, Merrick Ruqian | 0 | USA | −21N | −13B | −37B | +48N | +47B | +34N | 3.0 | 11.0 | 11.0 | 2.50 | 1644 | -6.4 |
| 28 | Rowe, Sarterus | 0 | USA | +42B | −24N | −4B | =25N | =39B | =31N | 2.5 | 15.0 | 17.0 | 5.75 | 1698 | 0.0 |
| 29 | Zhao, Raymond Rubao | 0 | USA | =14B | −36N | =25B | =39N | +35B | −12B | 2.5 | 14.0 | 16.0 | 6.25 | 1556 | 0.0 |
| 30 | Marek, Jake | 0 | USA | −5B | =34N | =31B | =40N | +43B | −14N | 2.5 | 14.0 | 15.5 | 4.75 | 1488 | 0.0 |
| 31 | Guo, Loida | 1547 | USA | =36B | −11N | =30N | =44B | =38N | =28B | 2.5 | 12.5 | 14.0 | 5.25 | 1616 | +7.6 |
| 32 | Dollinger, Eli Joseph | 0 | USA | −35B | =46N | −34B | +47N | +40B | −13N | 2.5 | 10.5 | 11.0 | 3.00 | 810 | 0.0 |
| 33 | Pai, Vihaan | 1634 | USA | =15N | +20B | −2B | −8N | =34B | F | 2.0 | 18.0 | 18.0 | 6.25 | 1671 | +8.4 |
| 34 | Raj, Skandha | 1610 | USA | −1N | =30B | +32N | −21B | =33N | −27B | 2.0 | 16.0 | 18.0 | 4.75 | 1362 | -36.0 |
| 35 | FIDE 39990311 | 0 | — | +32N | −7B | −18N | −19B | −29N | +47B | 2.0 | 16.0 | 16.5 | 3.00 | 963 | 0.0 |
| 36 | Holler, Robert C | 1672 | USA | =31N | +29B | −3N | =13B | −26N | F | 2.0 | 16.0 | 16.0 | 5.50 | 1369 | -22.6 |
| 37 | Schaaf, Marvin Theodorus | 0 | USA | −3N | −26B | +27N | −23B | +45N | F | 2.0 | 15.0 | 15.0 | 4.50 | 1445 | 0.0 |
| 38 | Hajjali, Ryan | 0 | USA | =8B | =39N | −5B | =43N | =31B | F | 2.0 | 14.0 | 14.0 | 5.00 | 1642 | 0.0 |
| 39 | Smolensky, Randall K | 1659 | USA | =23N | =38B | −6N | =29B | =28N | F | 2.0 | 14.0 | 14.0 | 5.00 | 1421 | -25.2 |
| 40 | Sardar, Ekam S | 0 | USA | −7N | −18B | +48N | =30B | −32N | =45B | 2.0 | 14.0 | 14.0 | 2.00 | 1505 | 0.0 |
| 41 | Rodriguez Melendez, Mauricio | 1746 | PUR | −16N | +48B | =26N | =20B | −19N | F | 2.0 | 13.5 | 13.5 | 3.25 | 1504 | -50.4 |
| 42 | Baxter, Brent | 1827 | USA | −28N | +45B | +44N | −15B | −18N | F | 2.0 | 12.5 | 12.5 | 3.00 | 1767 | -3.0 |
| 43 | Johnson, Kendrick | 0 | USA | +19N | −9B | −16N | =38B | −30N | −22N | 1.5 | 16.5 | 18.5 | 4.50 | 1657 | 0.0 |
| 44 | Miller, Theodore | 1559 | USA | −4B | +47N | −42B | =31N | −25B | F | 1.5 | 12.5 | 12.5 | 1.75 | 1494 | -7.6 |
| 45 | Yang, Jimmy | 1505 | USA | −24B | −42N | =47B | =46N | −37B | =40N | 1.5 | 10.0 | 10.5 | 1.75 | 1027 | -5.2 |
| 46 | Bharath, Bhavik | 0 | USA | −9N | =32B | −20N | =45B | F | F | 1.0 | 11.5 | 11.5 | 2.00 | 1343 | 0.0 |
| 47 | FIDE 39991768 | 0 | — | −12N | −44B | =45N | −32B | −27N | −35N | 0.5 | 12.5 | 14.0 | 0.75 | 1339 | 0.0 |
| 48 | FIDE 39990320 | 0 | — | −17B | −41N | −40B | −27B | F | F | 0.0 | 10.5 | 10.5 | 0.00 | 881 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Maokhampio, LucasUSA+102.05.0 pts · #1
- 2Yuan, ChenUSA+47.64.0 pts · #14
- 3Nicoski, Aaron MUSA+37.23.5 pts · #4
Top rating losers
- 1Rodriguez Melendez, MauricioPUR-50.42.0 pts · #27
- 2Karthik BimodIND-49.24.0 pts · #32
- 3Raj, SkandhaUSA-36.02.0 pts · #37
Biggest upsets
- R2+262 Elo gap
- R2+233 Elo gap
- R3+141 Elo gap