Domestic-league season · JEF United Chiba.
Following his move to JEF United Chiba, Kobayashi's current-season form is down 100% on last season (Season 3→0), while his Rating eased 41→17. His peak season for form remains 2020/21 (Season 3).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | JEF United Chiba · 3rd | 1 | 0 | 0 | — | 17 | 0 |
| 2020/21 | Kashiwa Reysol · 7th | 9 | 0 | 0 | 6.61 | 41 | 3 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
Y. Kobayashi is a 31-year-old central midfielder at JEF United Chiba, rated 16.6 overall by Field Insider's model. A seasoned veteran, he has been a fringe squad member this season (0% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kobayashi.
On the season, Kobayashi graded 0 for current form (age-blind), on 0 goals, 0 assists and 0 defensive actions per 90.
Year-on-year, that's broadly in line with last season (Season 3 → 0).
On long-term talent our Rating reads 17. At 31 Kobayashi is into the veteran stage, where the age curve weighs on the projection, and a market index of 5.7 reflects that trajectory.
0 tackles, blocks & interceptions per 90 — light defensive volume across 1 appearance. Behind an upper-table side (3rd of 20) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume.
Rated 16.6 overall — below regular-starter level. Defensively he reads as light defensive volume (0 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.9× 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 (~13), then tapers with age. At 31, Kobayashi sits on 5.7, past its peak and easing. The blue line is Kobayashi's projected Rating — 16.6 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.
