2025 MCA Fall Seniors Open
Open SwissStandard
16 players participated in this 4-round tournament, held from 17 Oct 2025 to 07 Nov 2025 in Winnipeg, Manitoba, Canada. Top 10 Elo average was 1873, and top seed was Jim Lauritson (🇨🇦 CAN, 2045).
Alan Nagelberg (🇨🇦 CAN, 2018) won with 4.0/4, ahead of Anthony Boron (3.0) and Jim Lauritson (3.0). Nagelberg broke clear in the final round.
The biggest upset came in round 3: John Klokow (1547) beat Al Macpherson (1786), a +239-point gap.
Location
🇨🇦Winnipeg, Manitoba, Canada
Dates
17 Oct 2025 → 07 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Federations · 1 represented
🇨🇦Canada×16
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsAlan Nagelberg led from R4; +1.0-point edge over the runner-up.
Co-leaders
6
3
2
1
R4–R4 · LEAD HELD
Alan Nagelberg never relinquished the lead after R4; final gap +1.0 over the runner-up.
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Alan Nagelberg beat Anthony Boron (White).
WIN STREAKS · 2 top finishers
Alan Nagelberg 4 wins (R1–R4)Anthony Boron 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Alan Nagelberg | * | 1 | — | 1 |
| 2Anthony Boron | 0 | * | 1 | — |
| 3Jim Lauritson | — | 0 | * | — |
| 4Nathan Vaughan | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nagelberg, Alan | 2018 | CAN | +12B | +4B | +6N | +2B | 4.0 | 8.0 | 9.0 | 9.00 | 2583 | +37.8 |
| 2 | Boron, Anthony | 1908 | CAN | +10B | +11N | +3B | −1N | 3.0 | 8.0 | 9.0 | 5.00 | 2015 | +13.0 |
| 3 | Lauritson, Jim | 2045 | CAN | +13N | +5B | −2N | +7B | 3.0 | 7.0 | 8.0 | 5.00 | 1977 | +7.2 |
| 4 | Vaughan, Nathan | 1956 | CAN | +14B | −1N | +10B | +5N | 3.0 | 7.0 | 7.5 | 3.50 | 1937 | +6.0 |
| 5 | Greenberg, Harley | 1629 | CAN | +7B | −3N | +11B | −4B | 2.0 | 8.0 | 9.0 | 3.00 | 1875 | +42.4 |
| 6 | Minano, John V | 1676 | CAN | F | +8N | −1B | +12N | 2.0 | 7.0 | 7.0 | 3.00 | 1891 | +16.4 |
| 7 | Kuryliw, Ray | 1800 | CAN | −5N | +15B | +13N | −3N | 2.0 | 6.0 | 6.5 | 1.50 | 1717 | -10.2 |
| 8 | Green, Jim | 1872 | CAN | F | −6B | +15N | +11N | 2.0 | 3.5 | 3.5 | 1.50 | 1832 | +1.6 |
| 9 | Klokow, John | 1547 | CAN | F | F | +14N | +10N | 2.0 | 1.5 | 1.5 | 1.50 | 2553 | +20.4 |
| 10 | Melnyk, Jim | 1605 | CAN | −2N | +16B | −4N | −9B | 1.0 | 8.0 | 8.0 | 0.00 | 1038 | -18.2 |
| 11 | Moussa, Karim | 1722 | CAN | +16N | −2B | −5N | −8B | 1.0 | 7.0 | 7.0 | 0.00 | 993 | -76.0 |
| 12 | Remillard, John | 1427 | CAN | −1N | −13B | +16N | −6B | 1.0 | 7.0 | 7.0 | 0.00 | 949 | -24.0 |
| 13 | Adeyemi, Adebowale | 1947 | CAN | −3B | +12N | −7B | F | 1.0 | 6.0 | 6.0 | 1.00 | 1675 | -12.8 |
| 14 | Macpherson, Al | 1786 | CAN | −4N | F | −9B | =15N | 0.5 | 5.5 | 5.5 | 0.25 | 1447 | -27.2 |
| 15 | Pacin, Ondrej | 1396 | CAN | F | −7N | −8B | =14B | 0.5 | 4.5 | 4.5 | 0.25 | 1548 | +0.4 |
| 16 | Mandusic, Ante | 1361 | CAN | −11B | −10N | −12B | F | 0.0 | 3.0 | 3.0 | 0.00 | 951 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Greenberg, HarleyCAN+42.42.0 pts · #9
- 2Nagelberg, AlanCAN+37.84.0 pts · #1
- 3Klokow, JohnCAN+20.42.0 pts · #7
Top rating losers
- 1Moussa, KarimCAN-76.01.0 pts · #14
- 2Macpherson, AlCAN-27.20.5 pts · #11
- 3Remillard, JohnCAN-24.01.0 pts · #15
Biggest upsets
- R3+239 Elo gap
- R2+196 Elo gap
- R1+171 Elo gap