CChessStats

2025 NY Marshall Summer Six Day - IM C

Round-RobinStandard

10 players participated in this 9-round tournament, held from 08 Jul 2025 to 13 Jul 2025 in New York, NY, United States. 7 titled players from 5 federations. Top 10 Elo average was 2283, and top seed was Oleksii Bilych (🇺🇦 UKR, IM, 2446).

Ethan Guo (🇺🇸 USA, FM, 2193) won with 6.5/9, ahead of Karen Movsziszian (5.5) and Julian Colville (5.0). Guo shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 4: Ethan Guo (FM, 2193) beat Oleksii Bilych (IM, 2446), a +253-point gap.

Location
🇺🇸New York, NY, United States
Dates
08 Jul 2025 → 13 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 9 rounds
Top seed
🇺🇦IMOleksii Bilych2446
Avg top 10
2,283
Participants
10
Titled players · 7
GM×2
IM×3
FM×2
Federations · 5 represented
🇺🇸United States of America×6
🇺🇦Ukraine×1
🇮🇱Israel×1
🇮🇸Iceland×1
🇦🇲Armenia×1
Top 3

How it unfolded

Top 10 · 9 rounds

FM Ethan Guo led from R5 onwards, the runner-up race stayed tight. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
2
1
1
2
1
1
1
1
1
#1#2#5#10R1R2R3R4R5R6R7R8R9Guo takes lead
R5 · LEADER CHANGE10 Jul

FM Ethan Guo takes the sole lead (4.0/5).

R9 · HEAD-TO-HEAD · WINNER VS 2ND

FM Ethan Guo drew with GM Karen Movsziszian (Black).

R3–R6 · WIN STREAK

FM Ethan Guo won 4 in a row (R3–R6).

Cross-table

#PlayerElo12345678910PtsSBBhΔ EloPerf
1🇺🇸FMGuo, Ethan2193*½½1½1½11½6.527.2538.5+63.82459
2🇦🇲GMMovsziszian, Karen2380½*½½½½½11½5.523.0039.5-2.82352
3🇺🇸IMColville, Julian2248½½*1½01½015.022.5040.0+38.82330
4🇺🇦IMBilych, Oleksii24460½0*½1½1½15.019.7540.0-15.92308
7🇮🇱GMYudasin, Leonid2290½½½½*½½½½½4.520.2540.5-1.02282
6🇺🇸Moor, Nathaniel Philip22610½10½*1½014.519.2540.5+5.32286
5🇮🇸IMHeimisson, Hilmir Freyr2342½½0½½0*11½4.518.7540.5-7.92277
8🇺🇸Wongso, Steve215400½0½½0*113.513.0041.5+27.22218
9🇺🇸Mottola, Max2247001½½100*03.014.2542.0-25.82162
10🇺🇸FMAtwell, Rose2271½½00½0½01*3.013.5042.0-25.32160

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets