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Profile

Full nameKoki Tachi
PositionCentre-back
NationalityJapan
Age28
Date of birth14 Dec 1997
BirthplaceSuzuka
Height173 cm
Shirt number#4
ClubShonan Bellmare
Centre-back
17
Appearances
1
Goals
0
Assists
1376
Minutes

Domestic-league season · Shonan Bellmare.

Performance data · by competition

CompetitionAppsGAMinMatch
J1 League171013766.82
J-League Cup200210

Scout report

Squad depthCentral defender

K. Tachi is a 28-year-old central defender at Shonan Bellmare, rated 32.1 overall by Field Insider's model, ranking 212th of 377 on scout potential in the J1 League. An experienced operator, he has been a rotation option this season (40.2% of available minutes). His defensive output reads 3.86 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Tachi.

Judged on this season alone, Tachi graded 12 — a workmanlike campaign that ranks 50th of 64 of the 64 centre-backs in the J1 League, on 2 clean sheets and 3.859 defensive actions per 90.

Year-on-year, that's a clear step up on last season (Season 1 → 12). Over the 6 seasons on record his form has drifted down, peaking in 2022/23.

On long-term talent our Rating reads 32, 35th of 64 of the 64 centre-backs in the J1 League. At 28 Tachi is in his prime years, and a market index of 5.3 reflects that trajectory.

From the career report
Read the full career report →

Past his 2022/23 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2022/23Trending downRemarkably consistent
Current potential35th of 64 centre-backs · J1 LeagueCurrent season50th of 64 centre-backs · J1 League50th-best centre-back in the J1 League212th in the J1 League · potential35th-highest potential centre-back in the J1 League
32.1
Ratingi
35th of 64 centre-backs
12.4
Seasoni
below regular-starter level
40.2%
Minutes
rotation minutes
3.86
Def. actions / 90
solid defensive volume

Output in context · Shonan Bellmare finished 19th of 20 · a relegation-threatened side

3.86
Def. / 90
31
Tackles
15
Interceptions
2
Clean sheets

3.86 tackles, blocks & interceptions per 90 — solid defensive volume, with 2 clean sheets across 17 appearances. Doing that for a relegation-threatened side (19th of 20) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.

Strengths

  • Defensive volume. 3.86 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

  • Game time. Only 40.2% of available minutes — needs a settled run to prove the level.
  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 32.1, Tachi carries the 35th-highest potential of the centre-backs in the J1 League of 64, and he is posting that for a relegation-threatened side (Shonan Bellmare finished 19th of 20) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as solid defensive volume (3.86 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1.2× now → 0.9× projected in three years).

Generated from Field Insider's rating model · AI-written analysis to follow.

Transfer news

No transfer news found for this player.