2025 December - 2026 February Marshall Mondays Round 1-5
Open SwissStandard
21 players participated in this 5-round tournament, held from 29 Dec 2025 to 26 Jan 2026 in New York, NY, United States. 4 titled players from 2 federations. Top 10 Elo average was 2052, and top seed was Grant Xu (🇺🇸 USA, FM, 2289).
Grant Xu (🇺🇸 USA, FM, 2289) won with 4.0/5, ahead of Abby Marshall (3.5) and George Berg (2.5). Xu won solo starting round 2.
The biggest upset came in round 1: Jaron Bernard (1763) beat Aleksandr Gutnik (2048), a +285-point gap.
Location
🇺🇸New York, NY, United States
Dates
29 Dec 2025 → 26 Jan 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Titled players · 4
IM×2
FM×1
WFM×1
Federations · 2 represented
🇺🇸United States of America×20
🇹🇹Trinidad and Tobago×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsFM Grant Xu led from R2; +0.5-point edge over the runner-up.
Co-leaders
2
1
1
1
1
R2–R5 · LEAD HELD
FM Grant Xu held the sole lead from R2 through R5 without losing it.
R1–R5 · WIN STREAK
FM Grant Xu won 4 in a row (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMGrant Xu | * | — | — | — |
| 2WFMAbby Marshall | — | * | — | — |
| 3David Mbonu | — | — | * | 0 |
| 4IMJustin Sarkar | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Xu, GrantFM | 2289 | USA | +19N | +6B | +14N | F | +7B | 4.0 | 5.5 | 5.5 | 5.50 | 2777 | +11.8 |
| 2 | Marshall, AbbyWFM | 2076 | USA | =18B | +12N | −7N | +11B | +3B | 3.5 | 7.5 | 8.0 | 5.75 | 1982 | -8.0 |
| 3 | Berg, George | 1866 | USA | =11N | +16B | −4N | +12B | −2N | 2.5 | 9.0 | 10.0 | 3.25 | 1835 | -4.2 |
| 4 | Mbonu, David | 1989 | USA | F | +18N | +3B | −5N | =10B | 2.5 | 7.5 | 7.5 | 4.00 | 2011 | +1.8 |
| 5 | Sarkar, JustinIM | 2278 | USA | F | =10N | +8B | +4B | F | 2.5 | 6.5 | 6.5 | 5.50 | 2201 | -1.6 |
| 6 | Bernard, Jaron | 1763 | USA | +13B | −1N | +17B | F | −9N | 2.0 | 8.5 | 8.5 | 2.50 | 1995 | +43.2 |
| 7 | Kozower, Ethan | 2075 | USA | F | +20N | +2B | F | −1N | 2.0 | 7.5 | 7.5 | 3.50 | 2165 | +8.0 |
| 8 | Blank, Moshe | 1915 | USA | F | +11B | −5N | +13B | F | 2.0 | 5.5 | 5.5 | 3.00 | 2132 | +16.0 |
| 9 | Colwell, Andrew | 1836 | USA | F | F | =13N | =15B | +6B | 2.0 | 5.0 | 5.0 | 3.50 | 2099 | +13.4 |
| 10 | Pozen, Samuel | 1731 | USA | F | =5B | +21N | F | =4N | 2.0 | 5.0 | 5.0 | 2.50 | 2086 | +51.2 |
| 11 | Yuen, Daisy | 1694 | USA | =3B | −8N | +20B | −2N | −13N | 1.5 | 9.5 | 9.5 | 1.25 | 1783 | +15.6 |
| 12 | Gilbert, Brian | 1740 | USA | =14N | −2B | +15B | −3N | F | 1.5 | 9.0 | 9.0 | 2.25 | 1726 | -1.8 |
| 13 | Gutnik, Aleksandr | 2048 | USA | −6N | F | =9B | −8N | +11B | 1.5 | 7.5 | 7.5 | 2.50 | 1715 | -33.6 |
| 14 | Bonin, JayIM | 2053 | USA | =12B | +15N | −1B | F | F | 1.5 | 7.0 | 7.0 | 2.25 | 1822 | -5.6 |
| 15 | Marin, Gabriel | 0 | USA | F | −14B | −12N | =9N | +?B | 1.5 | 5.0 | 5.0 | 1.00 | 1786 | 0.0 |
| 16 | Hull, Cameron | 1677 | USA | F | −3N | +18B | F | F | 1.0 | 3.0 | 3.0 | 0.50 | 1827 | +8.0 |
| 17 | Ballantyne, Rochelle | 1931 | TTO | F | F | −6N | F | +21B | 1.0 | 2.0 | 2.0 | 0.00 | 1763 | -8.8 |
| 18 | Darack, Adam Samuel | 1786 | USA | =2N | −4B | −16N | F | F | 0.5 | 7.0 | 7.0 | 1.75 | 1641 | -22.0 |
| 19 | Scott, Harold | 1858 | USA | −1B | F | F | F | F | 0.0 | 4.0 | 4.0 | 0.00 | 1459 | -1.6 |
| 20 | Tanaka, Takki | 1753 | USA | F | −7B | −11N | F | F | 0.0 | 3.5 | 3.5 | 0.00 | 1085 | -28.4 |
| 21 | Paas, Leo | 1761 | USA | F | F | −10B | F | −17N | 0.0 | 3.0 | 3.0 | 0.00 | 1031 | -32.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Pozen, SamuelUSA+51.22.0 pts · #9
- 2Bernard, JaronUSA+43.22.0 pts · #6
- 3Blank, MosheUSA+16.02.0 pts · #7
Top rating losers
- 1Gutnik, AleksandrUSA-33.61.5 pts · #12
- 2Paas, LeoUSA-32.80.0 pts · #21
- 3Tanaka, TakkiUSA-28.40.0 pts · #20
Biggest upsets
- R1+285 Elo gap
- R3+168 Elo gap
- R4+133 Elo gap