Kalmar Klassmasterskap 2025 Klass 1 R12
Round-RobinStandard
8 players participated in this 2-round tournament, held from 17 Sept 2025 to 24 Sept 2025 in Kalmar, Sweden. Top 10 Elo average was 1847, and top seed was Stefan Bjorklund (🇸🇪 SWE, 2047).
Stefan Bjorklund (🇸🇪 SWE, 2047) won with 1.5/2, ahead of Mikael Ohlsson (1.5) and Anders 1953 Larsson (1.5). Bjorklund won on tie-break after catching the field in the final round.
The biggest upset came in round 2: Mikael Ohlsson (1755) beat Viggo Mattsson (1909), a +154-point gap.
Location
🇸🇪Kalmar, Sweden
Dates
17 Sept 2025 → 24 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 2 rounds
Federations · 1 represented
🇸🇪Sweden×8
Top 3
- 🥇
- 🥈
- 🥉
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇸🇪Bjorklund, Stefan | 2047 | * | ½ | — | — | — | 1 | — | — | 1.5 | 1.75 | 2.5 | -3.8 | 1951 |
| 3 | 🇸🇪Ohlsson, Mikael | 1755 | ½ | * | — | 1 | — | — | — | — | 1.5 | 1.75 | 2.5 | +21.2 | 2171 |
| 2 | 🇸🇪Larsson, Anders 1953 | 1909 | — | — | * | — | 1 | — | ½ | — | 1.5 | 1.25 | 1.5 | +3.8 | 1982 |
| 5 | 🇸🇪Mattsson, Viggo | 1909 | — | 0 | — | * | — | — | 1 | — | 1.0 | 0.50 | 2.0 | -5.0 | 1818 |
| 4 | 🇸🇪Thornemo Larsson, Marcus | 1697 | — | — | 0 | — | * | — | — | 1 | 1.0 | 0.00 | 1.5 | +8.6 | 1862 |
| 6 | 🇸🇪Lindberg, Cajsa | 1763 | 0 | — | — | — | — | * | — | 1 | 1.0 | 0.00 | 1.5 | +8.2 | 1931 |
| 7 | 🇸🇪Linden, Peter | 1880 | — | — | ½ | 0 | — | — | * | — | 0.5 | 0.75 | 2.5 | -8.4 | 1716 |
| 8 | 🇸🇪Arbman, Jan | 1814 | — | — | — | — | 0 | 0 | — | * | 0.0 | 0.00 | 2.0 | -49.2 | 929 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ohlsson, MikaelSWE+21.21.5 pts · #3
- 2Thornemo Larsson, MarcusSWE+8.61.0 pts · #4
- 3Lindberg, CajsaSWE+8.21.0 pts · #6
Top rating losers
- 1Arbman, JanSWE-49.20.0 pts · #8
- 2Linden, PeterSWE-8.40.5 pts · #7
- 3Mattsson, ViggoSWE-5.01.0 pts · #5
Biggest upsets
- R2+154 Elo gap
- R2+117 Elo gap