Domestic-league season · FC Tokyo.
Missed 6 of FC Tokyo's ~38 games this season through 6 injury absences (hamstring). He still appeared 19 times — a solid return given how little of the season he was available. His rating is judged mainly on the games he was fit to play.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 J1 League | 19 | 1 | 1 | 1271 | 6.75 |
 J-League Cup | 2 | 0 | 0 | 141 | — |
Shirai's current-season form is up 27% on last season (Season 15→19), while his Rating eased 28→20. His peak season for form remains 2023/24 (Season 40).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | FC Tokyo · 11th | 19 | 1 | 1 | 6.75 | 20 | 19 |
| 2024/25 | FC Tokyo · 7th | 23 | 1 | 2 | 6.8 | 28 | 15 |
| 2023/24 | Kyoto Sanga · 13th | 34 | 0 | 2 | 6.84 | 37 | 40 |
| 2022/23 | Kyoto Sanga · 16th | 33 | 0 | 1 | 6.7 | 39 | 31 |
| 2020/21 | Consadole Sapporo · 12th | 27 | 0 | 0 | 6.57 | 39 | 8 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
K. Shirai is a 32-year-old central midfielder at FC Tokyo, rated 19.5 overall by Field Insider's model. A seasoned veteran, he has been a rotation option this season (44.1% of available minutes). His defensive output reads 2.97 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Shirai.
On the season, Shirai graded 19 for current form (age-blind), on 1 goal, 1 assist and 2.974 defensive actions per 90.
Year-on-year, that's a clear step up on last season (Season 15 → 19). Over the 5 seasons on record his form has trended upward, peaking in 2023/24.
On long-term talent our Rating reads 20. At 32 Shirai is into the veteran stage, where the age curve weighs on the projection, and a market index of 5.9 reflects that trajectory.
Read the appearance count in context: Shirai missed 6 games through injury (hamstring) out of roughly 38 this season. The 19 he did play is a solid return on the time he was fit, and his ratings are weighted toward those games rather than the ones he sat out injured.
Past his 2023/24 peak — the recent trend is downward, so buyers are paying for what's left, not what was.
2.97 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 19 appearances. Going forward he chipped in 1 goal and 1 assist — a useful bonus from the back.
Rated 19.5 overall — below regular-starter level. Defensively he reads as moderate defensive volume (2.97 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.8× 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 (~15), then tapers with age. At 32, Shirai sits on 5.9, past its peak and easing. The blue line is Shirai's projected Rating — 19.5 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.
