CChessStats

2025 Ottawa Fall Open

Open SwissStandard

29 players participated in this 5-round tournament, held from 26 Sept 2025 to 28 Sept 2025 in Ottawa, Canada. 6 titled players from 3 federations. Top 10 Elo average was 2149, and top seed was Olivier-Kenta Chiku-Ratte (🇨🇦 CAN, IM, 2477).

Rafael Adam (🇨🇦 CAN, CM, 2124) won with 4.5/5, ahead of Jacob Fischer (4.0) and Sebastien Azar (3.5). Adam shared the lead from round 4 and broke clear in the final round.

The biggest upset came in round 2: Jonathan Sun (1495) beat Isaac Wiebe (2198), a +703-point gap.

Location
🇨🇦Ottawa, Canada
Dates
26 Sept 2025 → 28 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇦IMOlivier-Kenta Chiku-Ratte2477
Avg top 10
2,149
Participants
29
Titled players · 6
IM×1
FM×1
CM×2
WFM×1
WCM×1
Federations · 3 represented
🇨🇦Canada×27
🇱🇧Lebanon×1
🇻🇳Vietnam×1
Top 3

How it unfolded

Top 6 · 5 rounds

CM Rafael Adam led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
11
5
1
2
1
1.52.545R1R2R3R4R5Adam takes lead
Adam4.5Fischer4Chiku-Ratte3.5Pelev3.5Moses3.5Lai3.5
R5 · LEADER CHANGE28 Sept

CM Rafael Adam takes the sole lead (4.5/5).

R1–R3 · WIN STREAK

IM Olivier-Kenta Chiku-Ratte won 3 in a row (R1–R3).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1CMRafael Adam*—
1
1
2Jacob Fischer—*——
3IMOlivier-Kenta Chiku-Ratte
0
—*—
4Iassen Pelev
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Adam, RafaelCM2124CAN+22B+24N=3B+8N+4N4.512.013.011.252342+37.6
2Fischer, Jacob1820CAN+12B+18N−17B+11N+13B4.09.511.59.502208+122.4
3Azar, Sebastien2015CAN+29N+5B=1N=4B=6B3.515.015.09.252257+25.8
4Chiku-Ratte, Olivier-KentaIM2477CAN+19B+11N+9B=3N−1B3.513.515.59.252184-6.3
5Lai, Duc Minh0VIE+14B−3N+21B+17N=7B3.511.513.07.752065-5.6
6Moses, NeilCM1829CAN−21N+25N+12B+10B=3N3.510.511.58.252087+11.6
7Berube, Maximilien1747CAN−24B+26N+18B+9N=5N3.59.510.07.252098+26.8
8Pelev, Iassen2155CAN=27B+28N+15N−1B+17B3.59.59.54.752114+30.6
9Voloaca, Mihnea2337CAN+20N+10B−4N−7B+19N3.012.014.07.002067-5.0
10Rousskikh, Maxim1774CAN+23B−9N+22B−6N+21B3.09.511.04.502002+3.4
11Nassar, Marc2091LBN+26B−4B+19N−2B=16N2.512.012.53.751898-7.8
12Iordanescu, Victor Nicolae1893CAN−2N+20B−6N=22B+23B2.511.012.54.251815-55.2
13Wiebe, Isaac2198CAN=25B−17N+28B+14N−2N2.59.59.53.001794-34.8
14Hong, Zihan1821CAN−5N=23B+25N−13B+22N2.59.010.03.251915+3.6
15Vu, Huy Minh1836CANF+27N−8B=21N+18B2.57.57.53.252068+52.8
16Tan, Shuwen1712CAN−18B−19N+26B+28N=11B2.57.07.01.751886+33.2
17Sun, Jonathan1495CANF+13B+2N−5B−8N2.013.513.56.501944+28.8
18Lattafi, Youcef2015CAN+16N−2B−7N+24B−15N2.012.513.53.501735-28.8
19Zhu, Elber1848CAN−4N+16B−11B+20N−9B2.011.513.54.501902-14.0
20Hughes, Henry1819CAN−9B−12N+23N−19B+24N2.09.010.02.501842+11.4
21Kellar, Ben1955CAN+6BF−5N=15B−10N1.512.512.54.751902+1.4
22Li, YilinWFM1985CAN−1N+29B−10N=12N−14B1.512.512.51.251704-19.2
23Beardall, Ben1480CAN−10N=14N−20B+25B−12N1.510.011.02.251738+9.6
24Mahdjoubi, Abdelaziz1913CAN+7N−1BF−18N−20B1.012.012.03.501769-2.6
25Filion, Samuel1777CAN=13N−6B−14B−23N=26N1.010.010.51.501659-27.6
26Thompson, Francis1720CAN−11N−7B−16NF=25B0.59.59.50.501546-40.8
27Latorre, VincentFM2097CAN=8N−15BFFF0.56.06.01.751726-26.8
28Fiset, Anais ChloeWCM1747CANF−8B−13N−16BF0.08.58.50.001104-47.6
29Martin, Braden0CAN−3B−22NFFF0.05.05.00.001164-26.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets