Domestic-league season · FC Viktoria Köln.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 3. Liga | 8 | 0 | 0 | 243 | 6.68 |
Following his move to FC Viktoria Köln, Duman's current-season form is level with last season (Season 3→2), while his Rating eased 27→24. His peak season for form remains 2021/22 (Season 18).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | FC Viktoria Köln · 11th | 8 | 0 | 0 | 6.68 | 24 | 2 |
| 2024/25 | SV Sandhausen · 19th | 3 | 1 | 0 | 6.73 | 27 | 3 |
| 2023/24 | 1. FC Nürnberg · 12th | 19 | 0 | 0 | 6.68 | 45 | 6 |
| 2022/23 | 1. FC Nürnberg · 14th | 17 | 0 | 3 | 6.69 | 50 | 9 |
| 2021/22 | 1. FC Nürnberg · 8th | 30 | 3 | 2 | 6.76 | 60 | 18 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
T. Duman is a 28-year-old central midfielder at FC Viktoria Köln, rated 23.6 overall by Field Insider's model. An experienced operator, he has been a fringe squad member this season (7.1% of available minutes). His defensive output reads 2.59 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Duman.
On the season, Duman graded 2 for current form (age-blind), on 0 goals, 0 assists and 2.593 defensive actions per 90.
Year-on-year, that's broadly in line with last season (Season 3 → 2). Over the 5 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 24. At 28 Duman is in his prime years, and a market index of 7.4 reflects that trajectory.
Below his 2021/22 peak but holding a solid level — the platform for a return is there.
2.59 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 8 appearances.
Rated 23.6 overall — below regular-starter level. Defensively he reads as moderate defensive volume (2.59 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 (~12), then tapers with age. At 28, Duman sits on 7.4, past its peak and easing. The blue line is Duman's projected Rating — 23.6 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.
