2025 MCA October Challengers

Open SwissStandard

6 players participated in this 4-round tournament, held from 07 Oct 2025 to 28 Oct 2025 in Winnipeg, Manitoba, Canada. Top 10 Elo average was 0.

Insu Jo (🇨🇦 CAN, 0) won with 4.0/4, ahead of Yueheng Gao (2.0) and Kyle Cobb (1.0). Jo won solo starting round 2.

Location

🇨🇦Winnipeg, Manitoba, Canada

Dates

07 Oct 2025 → 28 Oct 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 4 rounds

Avg top 10

Participants

Federations · 1 represented

🇨🇦Canada×6

Top 3

How it unfolded

Top 6 · 4 rounds

Insu Jo led from R2; +2.0-point edge over the runner-up.

Co-leaders

R2–R4 · LEAD HELD

Insu Jo never relinquished the lead after R2; final gap +2.0 over the runner-up.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

R1–R4 · WIN STREAK

Insu Jo won 4 in a row (R1–R4).

Head-to-head between the four finishers

Player	1	2	3	4
1Insu Jo	*	1	1	1
2Yueheng Gao	0	*	1	—
3Kyle Cobb	0	0	*	1
4Jacob Lam	0	—	0	*

#	Player	Fed	R1	R2	R3	R4	Pts	Bu C1	Bu	SB	Perf	Δ
1	Jo, Insu	CAN	+?N	+2B	+3N	+4B	4.0	4.0	4.0	4.00	1586	0.0
2	Gao, Yueheng	CAN	+5B	−1N	F	+3B	2.0	5.0	5.0	1.00	2276	+9.2
3	Cobb, Kyle	CAN	+4N	F	−1B	−2N	1.0	7.0	7.0	1.00	886	-9.2
4	Lam, Jacob	CAN	−3B	+5N	−?B	−1N	1.0	5.0	5.0	0.00	647	0.0
5	Gong, Lucas	CAN	−2N	−4B	F	−?N	0.0	3.0	3.0	0.00	752	0.0
6	Mandusic, Ante	CAN	F	−?N	−?B	F	0.0	0.0	0.0	0.00	663	0.0

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

Top rating losers