Septemberkampen 2025
Open SwissStandard
8 players participated in this 5-round tournament, held from 12 Sept 2025 to 14 Sept 2025 in Uppsala, Sweden. Top 10 Elo average was 1306, and top seed was Sixten Strand (🇸🇪 SWE, 2001).
Hakan Lonsjo (🇸🇪 SWE, 1693) won with 2.5/5, ahead of Walter Wingh (2.5) and Oskar Jonsson Assander (2.0). Lonsjo took the lead from round 4, winning on tie-break.
Location
🇸🇪Uppsala, Sweden
Dates
12 Sept 2025 → 14 Sept 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇸🇪Sweden×8
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R4; 2 players tied at 2.5/5, decided on Buchholz.
Co-leaders
2
1
1
1
2
R4 · LEADER CHANGE14 Sept
Hakan Lonsjo takes the sole lead (2.5/4).
R5 · TIEBREAK CLUSTER
2 players finish on 2.5/5. Lonsjo takes the title on Buchholz Cut1 (7.5).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Hakan Lonsjo beat Walter Wingh (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Hakan Lonsjo | * | 1 | 1 | ½ |
| 2Walter Wingh | 0 | * | 1 | ½ |
| 3Henry Bjarnegard | 0 | 0 | * | 1 |
| 4Oskar Jonsson Assander | ½ | ½ | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Lonsjo, Hakan | 1693 | SWE | F | +4B | =3N | +2B | −5N | 2.5 | 7.5 | 7.5 | 5.50 | 1816 | +9.8 |
| 2 | Wingh, Walter | 1677 | SWE | F | =3B | +7N | −1N | +4B | 2.5 | 6.5 | 6.5 | 3.00 | 1656 | +0.4 |
| 3 | Jonsson Assander, Oskar | 1474 | SWE | +8B | =2N | =1B | −4B | −6N | 2.0 | 8.0 | 8.0 | 2.50 | 1553 | +12.0 |
| 4 | Bjarnegard, Henry | 1771 | SWE | +7B | −1N | F | +3N | −2N | 2.0 | 7.0 | 7.0 | 2.00 | 1492 | -43.2 |
| 5 | Strand, Sixten | 2001 | SWE | F | F | F | F | +1B | 1.0 | 2.5 | 2.5 | 2.50 | 2523 | +7.2 |
| 6 | Emanuelsson, Aron | 1835 | SWE | F | F | F | F | +3B | 1.0 | 2.0 | 2.0 | 2.00 | 2274 | +2.0 |
| 7 | Engberg Obminski, Ludwig | 0 | SWE | −4N | F | −2B | — | — | 0.0 | 4.5 | 4.5 | 0.00 | 913 | 0.0 |
| 8 | Levander, Anton | 0 | SWE | −3N | — | — | — | — | 0.0 | 0.0 | 2.0 | 0.00 | 674 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Jonsson Assander, OskarSWE+12.02.0 pts · #5
- 2Lonsjo, HakanSWE+9.82.5 pts · #1
- 3Strand, SixtenSWE+7.21.0 pts · #3
Top rating losers
- 1Bjarnegard, HenrySWE-43.22.0 pts · #4
- 2Engberg Obminski, LudwigSWE0.00.0 pts · #8
- 3Levander, AntonSWE0.00.0 pts · #7