Domestic-league season · Degerfors IF.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Allsvenskan | 9 | 0 | 0 | 763 | 6.84 |
| Allsvenskanat AIK Stockholm | 11 | 0 | 0 | 233 | 6.44 |
Following his move to Degerfors IF, Karlsson's current-season form is down 75% on last season (Season 32→8), while his Rating eased 37→32. His peak season for form remains 2023/24 (Season 32).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Degerfors IF · 13th | 20 | 0 | 0 | 6.84 | 32 | 8 |
| 2023/24 | Halmstad · 12th | 27 | 2 | 1 | 6.83 | 37 | 32 |
| 2022/23 | Halmstad · 2nd | 18 | 0 | 0 | — | 29 | 0 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
K. Karlsson is a 21-year-old central midfielder at Degerfors IF, rated 31.9 overall by Field Insider's model, ranking 108th of 248 in the Allsvenskan and 2472nd of 2920 U-23 players tracked. A young player, he has been a rotation option this season (36.9% of available minutes). His defensive output reads 2.89 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Karlsson.
Judged on this season alone, Karlsson graded 8 — a workmanlike campaign that ranks 58th of 59 of the 59 central midfielders in the Allsvenskan, on 0 goals, 0 assists and 2.892 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 32 → 8). Over the 3 seasons on record his form has trended upward, peaking in 2023/24.
On long-term talent our Rating reads 32, 24th of 59 of the 59 central midfielders in the Allsvenskan. At 21 Karlsson is still climbing toward his ceiling, and a market index of 3.7 reflects that trajectory.
Below his 2023/24 peak but holding a solid level — the platform for a return is there.
2.89 tackles, blocks & interceptions per 90 — moderate defensive volume, with 2 clean sheets across 20 appearances. Doing that for a lower-table side (13th of 16) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight.
With a Rating of 31.9, Karlsson carries the 24th-highest potential of the central midfielders in the Allsvenskan of 59, and he is posting that for a lower-table side (Degerfors IF finished 13th of 16) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as moderate defensive volume (2.89 tackles, blocks & interceptions per 90). At 21 the trajectory points up — potential sits near its ceiling (97/100) and market value should climb as minutes and output follow.
Generated from Field Insider's rating model · AI-written analysis to follow.
The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~4), then tapers with age. At 21, Karlsson sits on 3.7, still climbing toward its peak. The blue line is Karlsson's projected Rating — 31.9 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.
No transfer news found for this player.
