Tomoki Iwata

Iwata's current-season form is level with last season (Season 38→38), while his Rating held around 49. His peak season for form remains 2025/26 (Season 38).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Birmingham · 13th	2	0	0	6.9	49	38
2025/26	Birmingham · 10th	45	3	1	6.85	49	38
2024/25	Birmingham · 1st	40	6	1	7.06	43	37
2023/24	Celtic · 1st	19	1	1	6.84	38	12
2022/23	CelticLoan · 1st	13	0	1	6.82	42	6
2022/23	Yokohama F. Marinos · 1st	32	2	1	7.01	56	33

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 5 earlier seasons in the full career.

Japan · international

Side	Apps	G
Japan	4	0

Career caps & goals — tournament breakdown in the full career.

Scout report

Solid contributorDefensive midfielder

T. Iwata is a 29-year-old defensive midfielder at Birmingham, rated 49.1 overall by Field Insider's model. An experienced operator, he has been an ever-present this season (92.2% of available minutes). His defensive output reads 2.76 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Iwata.

On the season, Iwata graded 38 for current form (age-blind), on 3 goals, 1 assist and 2.759 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 38 → 38). Over the 7 seasons on record his form has held fairly steady, peaking in 2025/26.

On long-term talent our Rating reads 49. At 29 Iwata is in his prime years, and a market index of 16.1 reflects that trajectory.

From the career report

Read the full career report →

A career still climbing — Iwata is at his peak right now, and the curve hasn't flattened.

Peak: 2025/26Trending upBreakout: 2024/25Stepped up 2025/264 clubs

49.1

Ratingi

a solid contributor and squad regular

38.1

Seasoni

developing / rotation level

92.2%

Minutes

near ever-present

2.76

Def. actions / 90

moderate defensive volume

Output in context · Birmingham finished 10th of 24 · a mid-table side

Apps

2.76

Def. / 90

Tackles

Interceptions

Clean sheets

2.76 tackles, blocks & interceptions per 90 — moderate defensive volume, with 9 clean sheets across 45 appearances. Going forward he chipped in 3 goals and 1 assist — a useful bonus from the back.

Strengths

Availability. On the pitch for 92.2% of available minutes — a dependable presence in the XI.

Watch points

Few red flags. No obvious weaknesses in the current-season profile — consistency is the next test.

Outlook

Rated 49.1 overall — a solid contributor and squad regular. Defensively he reads as moderate defensive volume (2.76 tackles, blocks & interceptions per 90). 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.

Per 90 & availability

Minutes played %92.2%

Available fixtures46 of 46

Goals / 900.071

Assists / 900.024

Goal contribution / 900.094

Defensive actions / 902.759

Player flow

Goal involvements4

Cards / 900.189

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

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 (~29), then tapers with age. At 29, Iwata sits on 16.1, past its peak and easing. The blue line is Iwata's projected Rating — 49.1 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.

Season statistics

Bars = where he ranks among defensive midfielders in the Championship with 600+ minutes this season.

Shooting

Goals3

Passing

Assists1

Defending

Tackles69

Interceptions36

Blocks12

Yellow/red cards

Yellow cards8

Red cards0

Transfer history

€1M total transfer fees · 5 moves

BirminghamAug 2024 – now€ 980K

Celticuntil Aug 2024

Yokohama F. Marinos(back from loan)Jul 2023 – Aug 2024

CelticJul 2023 – Jul 2023

Celtic(on loan)Jan 2023 – Jul 2023

Yokohama F. MarinosJan 2021 – Jan 2023

Oita Trinitauntil Jan 2021

About T. Iwata

Tomoki Iwata is a 29-year-old defensive midfielder who plays for Birmingham, born on April 7, 1997 in Usa, standing 178 cm tall. He is from Japan. Birmingham currently sit 13th of 24 in the Championship.

This season

In the current season, T. Iwata has made 2 appearances with 0 goals and 0 assists across 180 minutes.

T. Iwata's next match is on August 28, 2026, when Birmingham face Wrexham away in the Championship.

Field Insider's view

Field Insider currently rates T. Iwata at 49.1 with a Season form score of 38.1. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 16 career titles — among them the League One and the Premiership. Full list in the career record.

Career

Across 10 recorded seasons, T. Iwata has totalled 274 club appearances with 18 goals and 9 assists for 4 different clubs. His busiest campaign came in 2025/26, with 45 appearances for Birmingham.

T. Iwata's career has also included time at Celtic, Yokohama F. Marinos and Oita Trinita.

On the international stage, T. Iwata has represented Japan — 4 caps in our records.

Transfer news

No transfer news found for this player.