Domestic-league season · Jong PSV U21.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Eerste Divisie | 25 | 6 | 0 | 1250 | 6.7 |
 Eredivisieat PSV Eindhoven | 2 | 0 | 0 | 13 | 6.7 |
Following his move to Jong PSV U21, Koller's current-season form is level with last season (Season 21→19), while his Rating climbed 53→56. His peak season for form remains 2024/25 (Season 21).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Jong PSV U21 · 7th | 25 | 6 | 0 | 6.7 | 56 | 19 |
| 2024/25 | Vitesse · 20th | 22 | 2 | 2 | 6.9 | 53 | 21 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
J. Koller is a 19-year-old attacking midfielder at Jong PSV U21, rated 55.5 overall by Field Insider's model, ranking 76th of 360 in the Eerste Divisie and 323rd of 997 U-21 players tracked. A young player, he has been a rotation option this season (36.5% of available minutes). He brings 0.43 goal contributions per 90 (0.43 goals, 0 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Koller.
Judged on this season alone, Koller graded 19 — a workmanlike campaign that ranks 27th of 35 of the 35 attacking midfielders in the Eerste Divisie, on 6 goals and 0 assists in 25 appearances (0.432 involvements per 90).
Year-on-year, that's broadly in line with last season (Season 21 → 19).
On long-term talent our Rating reads 56, 16th of 35 of the 35 attacking midfielders in the Eerste Divisie. At 19 Koller is still climbing toward his ceiling, and a market index of 36.4 reflects that trajectory.
Below his 2024/25 peak but holding a solid level — the platform for a return is there.
6 goals in 25 appearances (0.24 per game) for a mid-table side.
With a Rating of 55.5, Koller carries the 16th-highest potential of the attacking midfielders in the Eerste Divisie of 35. In the final third he profiles as a productive contributor (0.43 goal contributions per 90). At 19 the trajectory points up — potential sits near its ceiling (99/100) and market value should climb as minutes and output follow. With this floor already at 19, the ceiling gets tested by a step up in level — one to track.
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 (~46), then tapers with age. At 19, Koller sits on 36.4, still climbing toward its peak. The blue line is Koller's projected Rating — 55.5 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.
