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Kill The Body

and the head will die

Steven Williams vs Sumbu Kalambay — record, stats and common opponents compared

HEAVYWEIGHT

Steven Williams

Cross-division

🇮🇹MIDDLEWEIGHT

Sumbu Kalambay

Steven Williams (3-2 across 5 tracked bouts) and Sumbu Kalambay (57-6-1) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share no common opponents in Kill The Body's bout data.

Williams

Tracked record

3–2

counted from 5 bouts Kill The Body has ingested

Kalambay

57

Wins33 KO · 58%

6

Losses

1

Draw64 tracked bouts

Heads up: at least one of these records is a tracked record — the wins and losses Kill The Body has ingested so far, not an independently verified career total. Treat the comparison as a read on the bouts we hold, not a settled ledger.

Head to Head

Kalambay leads 1–0

Steven Williams and Sumbu Kalambay have met 1 time; Kalambay leads 1–0.

Steven Williams and Sumbu Kalambay have met 1 time; Kalambay leads 1–0.
Met1982Feb 5Series
Steven WilliamsFighter ALLost0–1W–L
Sumbu KalambayFighter BWWon1–0W–L
ResultTKO1Meeting

The Numbers

Williams 1 · Kalambay 6 of 7 measurable rows
WilliamsKalambay
Record†
3-257-6-1 (edge)
Win %0–100%
60%
89.8% (edge)
Wins by knockoutmax 33
2
33 (edge)
KO ratenot comparable
—57.89%
Stoppage rate (tracked wins)‡0–100%
67% (edge)
58%
Times stopped‡max 2
2
1 (edge)
Title reignsmax 3
0
3 (edge)
Bouts per year§max 5.1
0.1
5.1 (edge)
Bouts trackedcoveragemax 64
5
64

† One or both records are tracked, not career-verified. · ‡ Counted from bouts Kill The Body has ingested, not a career total. · § Across each fighter's tracked career span. · Bars are scaled per row — percentages on 0–100, counts against the larger of the two. Every figure is also printed as text.

Tale of the Tape

Heightnot held
Steven Williams: No height on file
Sumbu Kalambay: 5′9″
Reachnot held
Steven Williams: No reach on file
Sumbu Kalambay: 72″
Agenot held
Steven Williams: No date of birth
Sumbu Kalambay: 70
Stance
Steven Williams: Not recorded
Sumbu Kalambay: Orthodox

Steven Williams left, Sumbu Kalambay right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

Heavyweight against Middleweight. The two are listed in different weight classes, so the tape measures them as they stand rather than as a matchup.

How They Win

Tracked bouts only
Steven Williams3 wins · from 5 tracked bouts

Steven Williams: 3 tracked wins — 2 by KO/TKO (67%) and 1 on the cards (33%). Counted from 5 bouts Kill The Body has ingested.

2 by KO/TKO 67%1 on the cards 33%

Sumbu Kalambay57 wins · from 64 tracked bouts

Sumbu Kalambay: 57 tracked wins — 33 by KO/TKO (58%), 23 on the cards (40%) and 1 by another method or unrecorded (2%). Counted from 64 bouts Kill The Body has ingested.

33 by KO/TKO 58%23 on the cards 40%1 by another method or unrecorded 2%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Steven Williams 5, Sumbu Kalambay 64 — not from a career-complete method table.

Common Opponents

No opponents in common across the bouts Kill The Body has tracked for these two.

Current Form

Oldest left · newest right

Steven Williams has won three straight since losses to Sumbu Kalambay and John Mugabi. Williams last boxed on Mar 28, 2026 — 210 days ago.LLWWW

Kalambay Feb 1982Mugabi Sep 1982Wiles Aug 2025Yarborough Nov 2025Zapata-Dominguez Mar 20260.1 tracked bouts per year

Sumbu Kalambay last boxed on May 19, 1993 — 12,211 days ago. Kalambay had won four in a row before losing a decision to Chris Pyatt.WWWWL

Graham Mar 1992Wesley Jun 1992Collins Oct 1992Evans Apr 1993Pyatt May 19935.1 tracked bouts per year

Common Questions

With the rows behind them
Have Steven Williams and Sumbu Kalambay ever fought each other?
Yes. Steven Williams and Sumbu Kalambay met once on February 5, 1982, and Sumbu Kalambay won by TKO.
The meeting

LFeb 5, 1982 · Kalambay · TKO

Head to Head ↓
Who has the better record, Williams or Kalambay?
Steven Williams is 3-2 across the 5 bouts Kill The Body has tracked and Sumbu Kalambay is 57-6-1. Sumbu Kalambay has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Williams3–260%

Kalambay57–6–189.8%

The Numbers ↓
Who has more knockouts, Williams or Kalambay?
Steven Williams has 2 knockout wins and Sumbu Kalambay has 33. Sumbu Kalambay has more.
Knockout wins · KO rate

Williams2

Kalambay3357.9%

The Numbers ↓
Do Williams and Kalambay have any common opponents?
Kill The Body's bout data shows no opponents that both Steven Williams and Sumbu Kalambay have faced.
How much fight data does Kill The Body have on Williams and Kalambay?
This comparison is drawn from 5 bouts tracked for Steven Williams and 64 bouts tracked for Sumbu Kalambay. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Williams5bouts

Kalambay64bouts

How They Win ↓

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