Domestic-league season · Ružomberok.
D. Köstl is a 28-year-old central defender at Ružomberok, rated 21.1 overall by Field Insider's model, ranking 106th of 160 in the Super Liga. An experienced operator, he has been a fringe squad member this season (29.7% of available minutes). His defensive output reads 2.11 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Köstl.
Judged on this season alone, Köstl graded 7 — a workmanlike campaign that ranks 26th of 28 of the 28 centre-backs in the Super Liga, on 2 clean sheets and 2.105 defensive actions per 90.
We hold a single season for Köstl, so there's no year-on-year comparison to draw yet — the read above is this campaign only.
On long-term talent our Rating reads 21, 16th of 28 of the 28 centre-backs in the Super Liga. At 28 Köstl is in his prime years, and a market index of 4.1 reflects that trajectory.
2.11 tackles, blocks & interceptions per 90 — moderate defensive volume, with 2 clean sheets across 22 appearances. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.
With a Rating of 21.1, Köstl carries the 16th-highest potential of the centre-backs in the Super Liga of 28 — though on just 22 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.11 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1.2× now → 0.9× projected in three years).
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 (~7), then tapers with age. At 28, Köstl sits on 4.1, past its peak and easing. The blue line is Köstl's projected Rating — 21.1 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.
