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Abdul Mumin

Ghana · the desk

Defence, Ghana

Club football at Rayo Vallecano de Madrid.

Sourced facts, dated and on the record. Squad membership, and his club when a source names one. Nothing invented; we don’t make players up.

At a glance

  • age

    28

    sourced with the squad

  • position

    Defence

    Ghana

  • club

    Rayo Vallecano de Madrid

    football-data.org

  • club tier

    1707

    ClubElo strength

  • our board

    #744

    of 1424 rated players

  • folded so far

    92′

    4 appearances

  • transfer market value (EUR millions), as a rank among peers

    3.00

    83th percentile of peers

Sourced

squad
Ghana · Defencefootball-data.org · 2026-06-29
club
Rayo Vallecano de Madridfootball-data.org · 2026-06-29

Sourced context, nothing more. It never touches a call.

Our rating · the working

the board

1725 ±73

his quality rating: club, age and measured output. The board orders by this plus his World Cup form, less a discount for how much we can measure him.

How the number is builtopenclose

1730 full roster Elo (+5 from national-team results)

the ± is how settled the number is, more minutes, tighter band

Tier 2, lineups + results, how rich the evidence is, not just how much

at or near his peak, no projected upside from age

Where he starts (his team’s strength, we refuse to invent what we haven’t measured) plus two fixed nudges make the quality rating above; the last line is what national-team results have added since, taking it to his full roster Elo.

starts at Ghana's strengththe fair club-over-national anchor, every player's starting point
1707
age curve at 28 (defences' curve)the position's measured peak, no discount either way
+0
transfer market value, a sourced market-consensus quality prior (the stronger reading for him here)his percentile among minutes-qualified peers, from club seasons
+18
quality rating · club, age + measured output
1725
form: national-team results, 4 appearances92 minutes, weighted by margin, surprise and his match stats, but shared across the XI
+5
full roster Elo · with results
1730

Where the +18 skill term comes from

Not a reputation, a measurement. We score every shot in the data ourselves and rank him among minutes-qualified peers; a fixed arithmetic turns that rank into points.

measured
3.00 transfer market value (EUR millions), as a rank among peers
his rank
83th percentile of qualified peers
scored from
the CC0 Transfermarkt community mirror; a market-consensus quality prior, taken at a capped weight where it reads a player higher than our (fixed, partial) shot/event data can
the arithmetic
46 pts/σ × z(83.2th) = 46 × 0.96 × 0.4 (position weight) = +18

A forward-only shadow signal, as of 2026-06-02. The skill term comes from our own xG models over the open archive; the rest is earned, recorded per appearance, auditable, never back-filled. It never moves a live call.

The notebook

The lines a beat writer keeps, except every one of ours is read off the ledger above, auditable to the night. Nothing invented.

  • standing

    #744 of 1424 rated players on our board.

What he’d cost · our estimate

€3.8m€15m €7.5m

Not a figure from any valuation site; we don’t republish those. Our own model: the level he plays at, what we’ve measured of him, his age and his role. A band, not a point: we can’t see contract length or release clauses, the two biggest real drivers, so we say so.

The workingopenclose
reference feea mid-tier-club, peak-age forward of average measured skill
€8m
club tier 1707the level he plays at, the strongest signal of what a club pays
×1.99
ageage 28, past the fee-peak, value falls ~18% a year
×0.82
defender fee factorstrikers set the market's top; midfield runs close; defence and goal at the record books' discounts
×0.58
individual skillour xG model has no confident read on him, priced on club, age and role only, so the band is wide
×1.00
our estimate
€7.5m

fee-model v3 priors (panel-anchored, 2026-06), calibrated against our reported fees. The band is roughly two-in-three likely; contract length and release clauses are data we don’t hold. Context only, it never touches a call.

The fee record · sourced

The market’s last public word: €1.5m (2022-09). Our estimate today: ≈ €7.5m. The gap is evidence, many of them, together, recalibrate our model; no single one rewrites him.

our read: undervalued , we rate him 397% above his last market price (a gem signal, context only)

  • 2022-09-01Guimaraes Rayo Vallecano€1.5m
  • 2020-08-15FC Nordsjaelland Guimaraesfree
  • 2018-07-01HB Koge FC Nordsjaellandundisclosed
  • 2018-01-23FC Nordsjaelland HB Kogeloan

Reported moves, dated and attributed (api-football.com), news facts, not a valuation site’s estimates. It never touches a call.

In our coverage · Ghana’s record

  • at Croatia2–1Called it
  • at England0–0Missed it
  • v Panama1–0Missed it

The newsroom’s calls on Ghana. Team-level, never dressed up as a player stat.

Squad · sourced