2025 Abe Yanofsky Memorial - U1800

Open SwissStandard

24 players participated in this 5-round tournament, held from 30 Aug 2025 to 01 Sept 2025 in Winnipeg, Manitoba, Canada. Top 10 Elo average was 1686, and top seed was Ken Einarsson (🇨🇦 CAN, 1788).

Sophia Guzman (🇨🇦 CAN, 1733) won with 4.5/5, ahead of David Breadner (4.0) and Winston Jin (4.0). Guzman won solo starting round 4.

The biggest upset came in round 5: Daniel Nikkel (1229) beat Darius Punay (1525), a +296-point gap.

Location

🇨🇦Winnipeg, Manitoba, Canada

Dates

30 Aug 2025 → 01 Sept 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 5 rounds

Avg top 10

1,686

Participants

Federations · 1 represented

🇨🇦Canada×23

Top 3

🥇
Sophia Guzman
🇨🇦CAN·1733
4.5pts·1941perf+39.6
🥈
David Breadner
🇨🇦CAN
4.0pts·1831perf+16.8
🥉
Winston Jin
🇨🇦CAN·1686
4.0pts·1725perf+22.0

How it unfolded

Top 6 · 5 rounds

Sophia Guzman led from R4; +0.5-point edge over the runner-up.

Co-leaders

Guzman4.5Breadner4Jin4Wang3.5Melnyk3.5Miao3.5

R4–R5 · LEAD HELD

Sophia Guzman held the sole lead from R4 through R5 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Sophia Guzman beat David Breadner (Black).

WIN STREAKS · 2 top finishers

Sophia Guzman 4 wins (R1–R4)David Breadner 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Sophia Guzman	*	1	—	—
2David Breadner	0	*	1	—
3Winston Jin	—	0	*	—
4Elvis Wang	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Guzman, Sophia	1733	CAN	+23B	+13N	+14B	+2N	=4B	4.5	11.5	11.5	9.75	1941	+39.6
2	Breadner, David	0	CAN	+16N	+10B	+3N	−1B	+7N	4.0	14.0	16.0	11.50	1831	+16.8
3	Jin, Winston	1686	CAN	+9N	+17B	−2B	+15N	+11B	4.0	11.5	13.5	9.50	1725	+22.0
4	Melnyk, Jim	1654	CAN	−10N	+19N	+12B	+14B	=1N	3.5	11.5	13.0	8.25	1915	+21.0
5	Miao, Yupeng	1712	CAN	−8N	+16B	+10N	=6N	+17B	3.5	11.0	13.0	8.25	2404	+14.0
6	Wang, Elvis	1565	CAN	=11B	+21N	=7N	=5B	+14N	3.5	11.0	12.0	7.50	1683	0.0
7	Letain, Cory	1662	CAN	=19B	+11N	=6B	+13N	−2B	3.0	12.0	13.5	7.00	1666	-8.2
8	Hui, Zenas	1592	CAN	+5B	−?N	−13B	+18B	+15N	3.0	9.5	9.5	7.50	1735	+7.6
9	Magnussen, Donald	1720	CAN	−3B	−15N	+20B	+24N	+13B	3.0	9.0	9.0	3.00	707	0.0
10	Jo, Asher	1390	CAN	+4B	−2N	−5B	=12N	+19B	2.5	13.5	15.0	6.25	1637	0.0
11	Minano, John V	1676	CAN	=6N	−7B	+16N	+21B	−3N	2.5	12.5	13.5	4.75	1581	-12.0
12	Pacin, Ondrej	1449	CAN	−18N	+20B	−4N	=10B	+21N	2.5	9.0	10.0	3.25	1552	+4.0
13	Towns, Barry	1693	CAN	+20N	−1B	+8N	−7B	−9N	2.0	13.5	14.5	4.00	920	0.0
14	Gannon, Keith	1565	CAN	+22B	+18B	−1N	−4N	−6B	2.0	13.5	14.5	3.00	866	-15.8
15	Lee, Zach Nathaniel	1566	CAN	−17N	+9B	+18N	−3B	−8B	2.0	12.0	14.0	5.00	707	0.0
16	Nikkel, Daniel	1229	CAN	−2B	−5N	−11B	+20N	+24B	2.0	11.0	11.0	1.00	922	-40.8
17	Lehotsky, Matthew	1710	CAN	+15B	−3N	F	+22B	−5N	2.0	10.5	10.5	3.00	811	0.0
18	Goodman, Clifford	1612	CAN	+12B	−14N	−15B	−8N	+22N	2.0	9.5	10.5	3.50	1551	0.0
19	Trueman, Francis	1370	CAN	=7N	−4B	−22N	+23B	−10N	1.5	10.0	10.0	1.50	1524	-1.2
20	Iyer, Pia	1232	CAN	−13B	−12N	−9N	−16B	+23N	1.0	9.5	9.5	0.00	757	0.0
21	Stewart, Michael	1457	CAN	F	−6B	+23N	−11N	−12B	1.0	8.5	8.5	0.00	805	-23.2
22	FIDE 2672383	1247	—	−14N	F	+19B	−17N	−18B	1.0	7.5	7.5	1.50	1569	0.0
23	Jachim, Griffin	0	CAN	−1N	F	−21B	−19N	−20B	0.0	8.0	8.0	0.00	752	0.0
24	Punay, Darius	1525	CAN	F	F	F	−9B	−16N	0.0	5.0	5.0	0.00	804	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Guzman, SophiaCAN
+39.6
4.5 pts · #4
2Jin, WinstonCAN
+22.0
4.0 pts · #12
3Melnyk, JimCAN
+21.0
3.5 pts · #2

Top rating losers

1Nikkel, DanielCAN
-40.8
2.0 pts · #16
2Stewart, MichaelCAN
-23.2
1.0 pts · #21
3Gannon, KeithCAN
-15.8
2.0 pts · #20

Biggest upsets

R5+296 Elo gap
Nikkel, Daniel1229 beat Punay, Darius1525
R1+264 Elo gap
Jo, Asher1390 beat Melnyk, Jim1654
R2+154 Elo gap
Lee, Zach Nathaniel1566 beat Magnussen, Donald1720