CChessStats

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
Top seed
🇺🇸FMGrant Xu2289
Avg top 10
2,052
Participants
21
Titled players · 4
IM×2
FM×1
WFM×1
Federations · 2 represented
🇺🇸United States of America×20
🇹🇹Trinidad and Tobago×1
Top 3
  • 🥇
    🇺🇸USA·2289
    4.0pts·2777perf+11.8
  • 🥈
    🇺🇸USA·2076
    3.5pts·1982perf-8.0
  • 🥉
    🇺🇸USA·1866
    2.5pts·1835perf-4.2

How it unfolded

Top 6 · 5 rounds

FM Grant Xu led from R2; +0.5-point edge over the runner-up.

Co-leaders
2
1
1
1
1
1.52.545R1R2R3R4R5
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
Player1234
1FMGrant Xu*
2WFMAbby Marshall*
3David Mbonu*
0
4IMJustin Sarkar
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Xu, GrantFM2289USA+19N+6B+14NF+7B4.05.55.55.502777+11.8
2Marshall, AbbyWFM2076USA=18B+12N7N+11B+3B3.57.58.05.751982-8.0
3Berg, George1866USA=11N+16B4N+12B2N2.59.010.03.251835-4.2
4Mbonu, David1989USAF+18N+3B5N=10B2.57.57.54.002011+1.8
5Sarkar, JustinIM2278USAF=10N+8B+4BF2.56.56.55.502201-1.6
6Bernard, Jaron1763USA+13B1N+17BF9N2.08.58.52.501995+43.2
7Kozower, Ethan2075USAF+20N+2BF1N2.07.57.53.502165+8.0
8Blank, Moshe1915USAF+11B5N+13BF2.05.55.53.002132+16.0
9Colwell, Andrew1836USAFF=13N=15B+6B2.05.05.03.502099+13.4
10Pozen, Samuel1731USAF=5B+21NF=4N2.05.05.02.502086+51.2
11Yuen, Daisy1694USA=3B8N+20B2N13N1.59.59.51.251783+15.6
12Gilbert, Brian1740USA=14N2B+15B3NF1.59.09.02.251726-1.8
13Gutnik, Aleksandr2048USA6NF=9B8N+11B1.57.57.52.501715-33.6
14Bonin, JayIM2053USA=12B+15N1BFF1.57.07.02.251822-5.6
15Marin, Gabriel0USAF14B12N=9N+?B1.55.05.01.0017860.0
16Hull, Cameron1677USAF3N+18BFF1.03.03.00.501827+8.0
17Ballantyne, Rochelle1931TTOFF6NF+21B1.02.02.00.001763-8.8
18Darack, Adam Samuel1786USA=2N4B16NFF0.57.07.01.751641-22.0
19Scott, Harold1858USA1BFFFF0.04.04.00.001459-1.6
20Tanaka, Takki1753USAF7B11NFF0.03.53.50.001085-28.4
21Paas, Leo1761USAFF10BF17N0.03.03.00.001031-32.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets