Maas Willemsen

Willemsen's current-season form is level with last season (Season 22→22), while his Rating held around 71. His peak season for form remains 2025/26 (Season 22).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Heerenveen · 11th	4	0	0	7.25	71	22
2025/26	Heerenveen · 8th	31	1	0	6.85	71	22
2024/25	Heerenveen	1	0	0	6.9	—	—
2024/25	De Graafschap · 6th	36	1	2	7.01	54	20
2023/24	De Graafschap · 6th	22	1	0	6.93	51	4
2022/23	De Graafschap · 10th	12	0	0	—	—	—

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.

Scout report

Top-tier performerCentral defender

M. Willemsen is a 23-year-old central defender at Heerenveen, rated 70.5 overall by Field Insider's model. An emerging talent, he has been an ever-present this season (84.7% of available minutes). His defensive output reads 2.94 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Willemsen.

On the season, Willemsen graded 22 for current form (age-blind), on 4 clean sheets and 2.935 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 22 → 22). Over the 4 seasons on record his form has trended upward, peaking in 2025/26.

On long-term talent our Rating reads 71. At 23 Willemsen is still climbing toward his ceiling, and a market index of 32.5 reflects that trajectory.

From the career report

Read the full career report →

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

Peak: 2025/26Trending upBreakout: 2024/25

70.5

Ratingi

elite — among the best in the position

22.4

Seasoni

below regular-starter level

84.7%

Minutes

near ever-present

2.94

Def. actions / 90

moderate defensive volume

Output in context · Heerenveen finished 8th of 18 · a mid-table side

Apps

2.94

Def. / 90

Tackles

Interceptions

Clean sheets

2.94 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 31 appearances. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.

Strengths

Availability. On the pitch for 84.7% 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 70.5 overall — elite — among the best in the position. Defensively he reads as moderate defensive volume (2.94 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead. With this floor already at 23, the ceiling gets tested by a step up in level — one to track.

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

Per 90 & availability

Minutes played %84.7%

Available fixtures35 of 35

Goals / 900.034

Assists / 900

Goal contribution / 900.034

Defensive actions / 902.935

Player flow

Goal involvements1

Cards / 900.135

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 (~33), then tapers with age. At 23, Willemsen sits on 32.5, at or near its peak. The blue line is Willemsen's projected Rating — 70.5 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.

Season statistics

Bars = where he ranks among centre-backs in the Eredivisie with 600+ minutes this season.

Shooting

Goals1

Passing

Assists0

Defending

Tackles31

Interceptions25

Blocks31

Yellow/red cards

Yellow cards4

Red cards0

Transfer history

HeerenveenJul 2025 – nowFree Transfer

De Graafschapuntil Jul 2025

About M. Willemsen

Maas Willemsen is a 23-year-old centre-back who plays for Heerenveen, born on April 29, 2003 in Zutphen, standing 190 cm tall. He is from Netherlands. Heerenveen currently sit 11th of 18 in the Eredivisie.

This season

In the current season, M. Willemsen has made 4 appearances with 0 goals and 0 assists across 360 minutes, averaging a 7.13 match rating over his last 4 rated games.

Recent matches

August 30, 2026: 2-2 draw away at Willem II (90 minutes, 6.9 rating)
August 22, 2026: 0-2 loss at home vs PEC Zwolle (53 minutes, 7 rating)
August 16, 2026: 2-2 draw away at Ajax (90 minutes, 7 rating)
August 9, 2026: 1-0 win at home vs Twente (90 minutes, 7.6 rating)

M. Willemsen's next match is on September 6, 2026, when Heerenveen face AZ Alkmaar at home in the Eredivisie.

Field Insider's view

Field Insider currently rates M. Willemsen at 70.5 with a Season form score of 22.4. See the full scout report for strengths, watch-points and the market-value outlook.

Career

Across 5 recorded seasons, M. Willemsen has totalled 106 club appearances with 3 goals and 2 assists for 2 different clubs. His busiest campaign came in 2024/25, with 36 appearances for De Graafschap.

M. Willemsen's career has also included time at De Graafschap.

Transfer news

No transfer news found for this player.