Domestic-league season · Brighton.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Premier League | 21 | 2 | 1 | 386 | 6.66 |
 FA Cup | 2 | 0 | 0 | 103 | 6.45 |
 UEFA U21 Championship - Qualificationat Greece U21 | 1 | 1 | 0 | 90 | — |
 League Cup | 3 | 0 | 0 | 82 | 6.73 |
Following his move to Brighton, Kostoulas's current-season form is down 25% on last season (Season 12→9), while his Rating climbed 40→81. His peak season for form remains 2024/25 (Season 12).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Brighton · 8th | 21 | 2 | 1 | 6.66 | 81 | 9 |
| 2024/25 | Olympiakos Piraeus · 1st | 12 | 4 | 0 | 7.25 | 40 | 12 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
C. Kostoulas is a 19-year-old winger at Brighton, rated 81.3 overall by Field Insider's model. A young player, he has been a fringe squad member this season (11.3% of available minutes). He brings 0.7 goal contributions per 90 (0.47 goals, 0.23 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kostoulas.
On the season, Kostoulas graded 9 for current form (age-blind), on 2 goals and 1 assist in 21 appearances (0.699 involvements per 90).
Year-on-year, that's broadly in line with last season (Season 12 → 9).
On long-term talent our Rating reads 81. At 19 Kostoulas is still climbing toward his ceiling, and a market index of 130.1 reflects that trajectory.
Below his 2024/25 peak but holding a solid level — the platform for a return is there.
2 goals in 21 appearances (0.1 per game) — light end product the role wants to see climb. Add 1 assist for 3 goal contributions in all.
Rated 81.3 overall — elite — among the best in the position. In the final third he profiles as a genuine goal threat (0.7 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 (~163), then tapers with age. At 19, Kostoulas sits on 130.1, still climbing toward its peak. The blue line is Kostoulas's projected Rating — 81.3 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.
