2025 June-July Marshall Mondays Round 1-4
Open SwissStandard
37 players participated in this 4-round tournament, held from 02 Jun 2025 to 23 Jun 2025 in New York, NY, United States. 7 titled players from 4 federations. Top 10 Elo average was 2094, and top seed was Justin Sarkar (🇺🇸 USA, IM, 2284).
Ethan Kozower (🇺🇸 USA, 1972) won with 3.5/4, ahead of Aleksandr Gutnik (3.0) and Nkosi Nkululeko (3.0). Kozower clinched sole first place in the final round.
The biggest upset came in round 2: Ethan Kozower (1972) beat Pedro Espinosa (CM, 2253), a +281-point gap.
Location
🇺🇸New York, NY, United States
Dates
02 Jun 2025 → 23 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Titled players · 7
IM×2
FM×1
CM×1
WFM×1
WCM×2
Federations · 4 represented
🇺🇸United States of America×33
🇹🇷Turkiye×2
🇨🇦Canada×1
🇨🇷Costa Rica×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsEthan Kozower led from R4; +0.5-point edge over the runner-up.
Co-leaders
11
5
1
1
R4 · LEADER CHANGE23 Jun
Ethan Kozower takes the sole lead (3.5/4).
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Ethan Kozower drew with Aleksandr Gutnik (Black).
R1–R3 · WIN STREAK
Nkosi Nkululeko won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ethan Kozower | * | ½ | — | — |
| 2Aleksandr Gutnik | ½ | * | — | ½ |
| 3Nkosi Nkululeko | — | — | * | — |
| 4Evan S Rosenberg | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kozower, Ethan | 1972 | USA | +28N | +18B | =2N | +9B | 3.5 | 6.0 | 6.5 | 5.00 | 2308 | +30.6 |
| 2 | Gutnik, Aleksandr | 2042 | USA | +32B | +8N | =1B | =4N | 3.0 | 8.0 | 8.0 | 5.00 | 2126 | +8.2 |
| 3 | Nkululeko, Nkosi | 1966 | USA | +29B | +20N | +10B | F | 3.0 | 3.5 | 3.5 | 3.50 | 2633 | +19.4 |
| 4 | Rosenberg, Evan S | 1989 | USA | +15B | +24N | F | =2B | 2.5 | 5.5 | 5.5 | 4.00 | 2195 | +14.6 |
| 5 | Resika, NathanFM | 1958 | USA | −8B | =15N | +29N | +16B | 2.5 | 5.0 | 5.5 | 2.75 | 1951 | -1.0 |
| 6 | Levin, Anthony | 1989 | USA | =19N | −23B | +28N | +15B | 2.5 | 3.5 | 4.0 | 2.50 | 1874 | -11.0 |
| 7 | Tse, WhitneyWCM | 1983 | USA | F | =19B | +33N | +22B | 2.5 | 2.0 | 2.0 | 1.50 | 2095 | +15.6 |
| 8 | Rojas Cisneros, Kevin | 1927 | CRC | +5N | −2B | −11N | +33B | 2.0 | 7.5 | 7.5 | 2.50 | 1920 | -0.6 |
| 9 | Breskin, Nicklas | 1949 | USA | +13B | F | +21B | −1N | 2.0 | 6.5 | 6.5 | 3.00 | 2092 | +22.8 |
| 10 | Raitzin, Misha | 1896 | USA | +17B | +30N | −3N | F | 2.0 | 5.0 | 5.0 | 2.00 | 2133 | +38.0 |
| 11 | Blank, Moshe | 1951 | USA | −20B | +32N | +8B | −12N | 2.0 | 5.0 | 5.0 | 2.00 | 1950 | -1.0 |
| 12 | Kung, Thomas | 2231 | USA | F | F | +16N | +11B | 2.0 | 3.5 | 3.5 | 3.50 | 2712 | +5.2 |
| 13 | Bonin, JayIM | 2102 | USA | −9N | +34B | F | +25N | 2.0 | 3.0 | 3.0 | 1.00 | 2027 | -2.5 |
| 14 | Golosovker, Alexander | 1942 | USA | −18N | +36B | F | +21N | 2.0 | 2.0 | 2.0 | 1.00 | 2037 | +14.8 |
| 15 | Berg, George | 1817 | USA | −4N | =5B | +35B | −6N | 1.5 | 7.5 | 7.5 | 1.25 | 1825 | +0.2 |
| 16 | Colwell, Andrew | 1872 | USA | =30B | +35N | −12B | −5N | 1.5 | 5.0 | 5.0 | 0.25 | 1878 | -1.4 |
| 17 | Marshall, AbbyWFM | 2098 | USA | −10N | =28B | +31N | F | 1.5 | 3.0 | 3.0 | 0.75 | 1764 | -22.0 |
| 18 | Espinosa, PedroCM | 2253 | USA | +14B | −1N | F | F | 1.0 | 5.5 | 5.5 | 2.00 | 1955 | -14.0 |
| 19 | Li, Robert | 1798 | CAN | =6B | =7N | F | F | 1.0 | 5.0 | 5.0 | 2.50 | 1986 | +9.8 |
| 20 | Almoteri, Yasser | 1796 | USA | +11N | −3B | F | F | 1.0 | 5.0 | 5.0 | 2.00 | 1959 | +17.2 |
| 21 | Lu, Dazhen | 1829 | USA | F | +31B | −9N | −14B | 1.0 | 4.5 | 4.5 | 0.50 | 1721 | -16.8 |
| 22 | DeDona, Mark | 1938 | USA | F | +26B | F | −7N | 1.0 | 3.5 | 3.5 | 1.00 | 1946 | +0.4 |
| 23 | Tanaka, Takki | 1858 | USA | F | +6N | F | F | 1.0 | 2.5 | 2.5 | 2.50 | 2789 | +27.2 |
| 24 | Towsen, John | 1908 | USA | +36N | −4B | F | F | 1.0 | 2.5 | 2.5 | 0.00 | 1823 | -4.0 |
| 25 | Zhao, Austin | 1818 | USA | F | F | +37N | −13B | 1.0 | 2.0 | 2.0 | 0.00 | 1931 | +10.4 |
| 26 | Timmerman, David | 1908 | USA | F | −22N | F | +37B | 1.0 | 1.0 | 1.0 | 0.00 | 1849 | -3.2 |
| 27 | Sarkar, JustinIM | 2284 | USA | +34N | F | F | F | 1.0 | 0.0 | 0.0 | 0.00 | 2740 | +1.2 |
| 28 | Li, Wan QinWCM | 1643 | USA | −1B | =17N | −6B | F | 0.5 | 7.5 | 7.5 | 0.75 | 1728 | +7.6 |
| 29 | Hrop, Stephen | 1807 | USA | −3N | F | −5B | =31N | 0.5 | 6.0 | 6.0 | 0.25 | 1585 | -16.0 |
| 30 | Sazci, Bilgen | 1960 | TUR | =16N | −10B | F | F | 0.5 | 3.5 | 3.5 | 0.75 | 1691 | -14.2 |
| 31 | Yuen, Daisy | 1651 | USA | F | −21N | −17B | =29B | 0.5 | 3.0 | 3.0 | 0.25 | 1622 | -5.6 |
| 32 | Kennedy, John | 1844 | USA | −2N | −11B | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 1197 | -23.6 |
| 33 | Wong, Hudson | 1729 | USA | F | F | −7B | −8N | 0.0 | 4.5 | 4.5 | 0.00 | 1155 | -17.2 |
| 34 | Peyton, Nathan | 1941 | USA | −27B | −13N | F | F | 0.0 | 3.0 | 3.0 | 0.00 | 1393 | -16.4 |
| 35 | Davar, Ben | 1712 | USA | F | −16B | −15N | F | 0.0 | 3.0 | 3.0 | 0.00 | 1044 | -26.0 |
| 36 | Sazci, Gensay | 1656 | TUR | −24B | −14N | F | F | 0.0 | 3.0 | 3.0 | 0.00 | 1123 | -14.0 |
| 37 | Paas, Leo | 1759 | USA | F | F | −25B | −26N | 0.0 | 2.0 | 2.0 | 0.00 | 1063 | -28.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Raitzin, MishaUSA+38.02.0 pts · #10
- 2Kozower, EthanUSA+30.63.5 pts · #1
- 3Tanaka, TakkiUSA+27.21.0 pts · #20
Top rating losers
- 1Paas, LeoUSA-28.80.0 pts · #34
- 2Davar, BenUSA-26.00.0 pts · #33
- 3Kennedy, JohnUSA-23.60.0 pts · #36
Biggest upsets
- R2+281 Elo gap
- R1+202 Elo gap
- R1+155 Elo gap