Domestic-league season · Arka Gdynia.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Ekstraklasa | 7 | 0 | 0 | 634 | 6.83 |
Following his move to Arka Gdynia, Grobelny's current-season form is down 93% on last season (Season 14→1), while his Rating eased 37→30. His peak season for form remains 2023/24 (Season 14).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Arka Gdynia · 17th | 7 | 0 | 0 | 6.83 | 30 | 1 |
| 2023/24 | Warta Poznań · 16th | 32 | 0 | 0 | 6.98 | 37 | 14 |
| 2022/23 | Warta Poznań · 9th | 32 | 0 | 0 | 6.3 | 34 | 8 |
| 2021/22 | Warta Poznań · 11th | 9 | 0 | 0 | 6.52 | 35 | 9 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
J. Grobelny is a 25-year-old goalkeeper at Arka Gdynia, rated 29.5 overall by Field Insider's model, ranking 171st of 332 in the Ekstraklasa. In his prime years, he has been a fringe squad member this season (20.7% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Grobelny.
Judged on this season alone, Grobelny graded 1 — a workmanlike campaign that ranks 24th of 26 of the 26 goalkeepers in the Ekstraklasa, on 1 clean sheet across 7 appearances.
Year-on-year, that's a drop on last season (Season 14 → 1). Over the 4 seasons on record his form has drifted down, peaking in 2023/24.
On long-term talent our Rating reads 30, 13th of 26 of the 26 goalkeepers in the Ekstraklasa. At 25 Grobelny is in his prime years, and a market index of 11.8 reflects that trajectory.
Grobelny is operating at his career peak — the 2023/24 level is the level.
1 clean sheet in 7 appearances (14% of games). Keeping that many behind a relegation-threatened side (17th of 18) — a side that concedes more — points to a busy, productive season between the posts.
With a Rating of 29.5, Grobelny carries the 13th-highest potential of the goalkeepers in the Ekstraklasa of 26 — though on just 7 appearances this season, so the standing rests on a small sample. A limited game time keeper carrying the gloves this season. Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead.
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 (~12), then tapers with age. At 25, Grobelny sits on 11.8, at or near its peak. The blue line is Grobelny's projected Rating — 29.5 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.
