Domestic-league season · Kashiwa Reysol.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 J1 League | 38 | 0 | 0 | 3420 | 6.95 |
 J-League Cup | 2 | 0 | 0 | 180 | — |
Following his move to Kashiwa Reysol, Kojima's current-season form is up 414% on last season (Season 14→72), while his Rating eased 44→42. That makes this his strongest season for form to date.
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Kashiwa Reysol · 2nd | 38 | 0 | 0 | 6.95 | 42 | 72 |
| 2024/25 | Albirex Niigata · 16th | 33 | 0 | 0 | 6.94 | 44 | 14 |
| 2023/24 | Albirex Niigata · 10th | 30 | 0 | 0 | 6.98 | 49 | 33 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
R. Kojima is a 29-year-old goalkeeper at Kashiwa Reysol, rated 41.5 overall by Field Insider's model, ranking 306th of 874 in the J3 League. An experienced operator, he has been an ever-present this season (100% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kojima.
Judged on this season alone, Kojima graded 72 — a standout campaign that ranks top 2% of the 72 goalkeepers in the J3 League, on 19 clean sheets across 38 appearances.
Year-on-year, that's a clear step up on last season (Season 14 → 72). Across the 3 seasons we hold, it's his best return yet.
On long-term talent our Rating reads 42, top 32% of the 72 goalkeepers in the J3 League. At 29 Kojima is in his prime years, and a market index of 17.3 reflects that trajectory.
A career still climbing — Kojima is at his peak right now, and the curve hasn't flattened.
19 clean sheets in 38 appearances (50% of games). Playing behind a title-challenging side (2nd of 20) means a more protected goal, so the read is about command and distribution as much as raw shut-outs.
With a Rating of 41.5, Kojima carries the 23rd-highest potential of the goalkeepers in the J3 League (top 32%). A near ever-present keeper carrying the gloves this season. Experienced and reliable, but the value curve is easing (1.1× now → 0.8× 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 (~32), then tapers with age. At 29, Kojima sits on 17.3, past its peak and easing. The blue line is Kojima's projected Rating — 41.5 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.
