Domestic-league season · Nagoya Grampus.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 J1 League | 36 | 2 | 2 | 1780 | 6.9 |
 J-League Cup | 1 | 0 | 0 | 67 | — |
Nagai's current-season form is down 48% on last season (Season 27→14), while his Rating eased 17→10. His peak season for form remains 2022/23 (Season 30).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Nagoya Grampus · 16th | 36 | 2 | 2 | 6.9 | 10 | 14 |
| 2024/25 | Nagoya Grampus · 11th | 34 | 6 | 3 | 6.81 | 17 | 27 |
| 2023/24 | Nagoya Grampus · 6th | 33 | 4 | 4 | 6.74 | 19 | 27 |
| 2022/23 | FC Tokyo · 6th | 33 | 4 | 6 | 7.06 | 20 | 30 |
| 2021/22 | FC Tokyo · 9th | 38 | 2 | 4 | 6.69 | 20 | 17 |
| 2020/21 | FC Tokyo · 6th | 26 | 4 | 5 | 6.83 | 25 | 26 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
K. Nagai is a 37-year-old attacking midfielder at Nagoya Grampus, rated 9.6 overall by Field Insider's model, ranking 857th of 874 in the J3 League. A seasoned veteran, he has been a rotation option this season (52% of available minutes). He brings 0.2 goal contributions per 90 (0.1 goals, 0.1 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Nagai.
Judged on this season alone, Nagai graded 14 — a workmanlike campaign that ranks 48th of 71 of the 71 attacking midfielders in the J3 League, on 2 goals and 2 assists in 36 appearances (0.202 involvements per 90).
Year-on-year, that's a drop on last season (Season 27 → 14). Over the 6 seasons on record his form has drifted down, peaking in 2022/23.
On long-term talent our Rating reads 10, 69th of 71 of the 71 attacking midfielders in the J3 League. At 37 Nagai is into the veteran stage, where the age curve weighs on the projection, and a market index of 1.8 reflects that trajectory.
Past his 2022/23 peak — the recent trend is downward, so buyers are paying for what's left, not what was.
2 goals in 36 appearances (0.06 per game) — light end product the role wants to see climb. Add 2 assists for 4 goal contributions in all.
With a Rating of 9.6, Nagai carries the 69th-highest potential of the attacking midfielders in the J3 League of 71, and he is posting that for a lower-table side (Nagoya Grampus finished 16th of 20) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. In the final third he profiles as a work-in-progress on end product (0.2 goal contributions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.5× and falling).
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 37, Nagai sits on 1.8, past its peak and easing. The blue line is Nagai's projected Rating — 9.6 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.
€0.3M total transfer fees · 4 moves
No transfer news found for this player.
