CChessStats

2025 Southern Alberta Open Premier

Open SwissStandard

31 players participated in this 5-round tournament, held from 22 Nov 2025 to 23 Nov 2025 in Calgary, AB, Canada. 2 federations represented. Top 10 Elo average was 2001, and top seed was Maikl Prianichnikov (πŸ‡¨πŸ‡¦ CAN, 2105).

Omid Malek (πŸ‡¨πŸ‡¦ CAN, 1972) won with 4.5/5, ahead of Sigfrido Pacheco-Vega (4.5) and Roy Yearwood (4.0). Malek shared the lead from round 4, winning on tie-break.

The biggest upset came in round 1: Bruce Coates (1199) beat Sophia Guzman (1789), a +590-point gap.

Location
πŸ‡¨πŸ‡¦Calgary, AB, Canada
Dates
22 Nov 2025 β†’ 23 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss Β· 5 rounds
Top seed
πŸ‡¨πŸ‡¦Maikl Prianichnikov2105
Avg top 10
2,001
Participants
31
Federations Β· 2 represented
πŸ‡¨πŸ‡¦CanadaΓ—30
πŸ‡¨πŸ‡±ChileΓ—1
Top 3
  • πŸ₯‡
    Omid Malek
    πŸ‡¨πŸ‡¦CANΒ·1972
    4.5ptsΒ·2687perf+25.6
  • πŸ₯ˆ
    Sigfrido Pacheco-Vega
    πŸ‡¨πŸ‡¦CANΒ·2025
    4.5ptsΒ·1969perf0.0
  • πŸ₯‰
    Roy Yearwood
    πŸ‡¨πŸ‡¦CANΒ·1901
    4.0ptsΒ·2005perf+20.0

How it unfolded

Top 6 Β· 5 rounds

Tight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.

Co-leaders
12
6
1
3
2
1.52.545R1R2R3R4R5
Pacheco-Vega4.5Malek4.5Yearwood4Salkeld3.5Riquelme Bravo3.5Vasic3
R5 Β· TIEBREAK CLUSTER

2 players finish on 4.5/5. Malek takes the title on Buchholz Cut1 (13.5).

R3 Β· HEAD-TO-HEAD Β· WINNER VS 2ND

Sigfrido Pacheco-Vega drew with Omid Malek (White).

R3–R5 Β· WIN STREAK

Roy Yearwood won 3 in a row (R3–R5).

Key matchups Β· top 4

Head-to-head between the four finishers
Player1234
1Sigfrido Pacheco-Vega*
Β½
β€”β€”
2Omid Malek
Β½
*β€”
1
3Roy Yearwoodβ€”β€”*β€”
4Tobias Salkeldβ€”
0
β€”*

Grille amΓ©ricaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΞ”
1Malek, Omid1972CAN+15N+7B=2N+19B+4N4.513.515.513.252687+25.6
2Pacheco-Vega, Sigfrido2025CAN+22N+8B=1B+13N+6B4.513.014.512.2519690.0
3Yearwood, Roy1901CAN+29Bβˆ’6N+14B+24N+7N4.09.59.56.502005+20.0
4Salkeld, Tobias1817CAN+11B+16N=13B+6Nβˆ’1B3.513.015.59.752074+18.4
5Riquelme Bravo, Martin2092CHI=18B+30Nβˆ’19N+27B+13B3.57.57.54.501958-14.4
6Vasic, Maxim2101CAN+17N+3B+10Nβˆ’4Bβˆ’2N3.015.017.59.502059+4.4
7Botoy, James Pajo1791CAN+28Bβˆ’1N+12B+9Nβˆ’3B3.014.515.06.501944+10.6
8Sibulo, Nerio1595CAN+24Bβˆ’2N+30Bβˆ’10B+18N3.010.510.53.001910+12.8
9Li, Jake Chi Hang1499CANβˆ’20B+25N+18Bβˆ’7B+21N3.09.010.05.001781+22.8
10Villamar, Eros1836CAN+25B+20Nβˆ’6B+8NF3.09.09.06.001964+17.2
11Xu, Michael1804CANβˆ’4Nβˆ’14B+25N+26B+24B3.08.09.03.001791-15.1
12Goodman, Kevin1988CANF+31Bβˆ’7N+22B+19N3.06.56.53.502034-5.6
13Prianichnikov, Maikl2105CAN+23N+26B=4Nβˆ’2Bβˆ’5N2.513.014.04.251927+10.0
14Lodhi, Talha1697CANβˆ’16B+11Nβˆ’3N=17B+22N2.512.013.55.751793+14.4
15Sheng, Jack1797CANβˆ’1B=18N+23BF+16N2.510.510.55.001882+34.0
16Sehn, Isaiah1765CAN+14Nβˆ’4B=22N+28Bβˆ’15B2.510.010.53.751764-13.6
17Zhang, Finley1619CANβˆ’6B=28N=21B=14N+23B2.59.09.54.001741+3.2
18Thomson, Zachary1704CAN=5N=15Bβˆ’9N+20Nβˆ’8B2.012.014.05.001713-0.6
19Abdelrhman, Hamid2087CANF+27N+5Bβˆ’1Nβˆ’12B2.012.012.04.501998+3.4
20Michalchuk, Avery1826CAN+9Nβˆ’10Bβˆ’24Nβˆ’18B+28N2.09.09.53.501654-10.8
21Guzman, Sophia1789CANβˆ’26N=23B=17N+29Bβˆ’9B2.08.08.02.001593-29.2
22Trentalance, Josiah1746CANβˆ’2B+29N=16Bβˆ’12Nβˆ’14B1.512.512.51.251713-6.0
23Zhang, Felix1708CANβˆ’13B=21Nβˆ’15N+30Bβˆ’17N1.59.59.51.001583-4.7
24Shamanth, Saanvi1714CANβˆ’8NF+20Bβˆ’3Bβˆ’11N1.012.012.02.001605-6.4
25Lee, Raphael1589CANβˆ’10Nβˆ’9Bβˆ’11BF+29N1.09.09.00.001577-4.2
26Coates, Bruce1199CAN+21Bβˆ’13Nβˆ’27Bβˆ’11NF1.08.58.52.001631-10.8
27Gallemaso, Bong1901CANFβˆ’19B+26Nβˆ’5NF1.06.56.51.001772-5.6
28Agyenim-Boateng, Nathaniel1237CANβˆ’7N=17BFβˆ’16Nβˆ’20B0.510.010.01.251450-45.6
29Shtepa, Liubov1746CANβˆ’3Nβˆ’22BFβˆ’21Nβˆ’25B0.08.58.50.00912-61.6
30Atwood, Matthew1337CANFβˆ’5Bβˆ’8Nβˆ’23NF0.08.08.00.001008-19.0
31Tadique, Edgardo1716CANFβˆ’12NFFF0.03.53.50.001278-7.2

Key insights

Biggest movers and upsets β€” the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
2025 Southern Alberta Open Premier β€” Calgary, AB, Canada | Chess Tournament Results | ChessStats