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Chauncy Welliver vs Sonny Bill Williams — record, stats and common opponents compared

🇺🇸HEAVYWEIGHT

Chauncy Welliver

🇳🇿NEW ZEALAND

Sonny Bill Williams

Chauncy Welliver (57-13-5) and Sonny Bill Williams (9-2) 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.

Welliver

57

Wins23 KO · 40%

13

Losses

5

Draws73 tracked bouts

Williams

9

Wins4 KO · 44%

2

Losses

0

Draws11 tracked bouts

Head to Head

Williams leads 1–0

Chauncy Welliver and Sonny Bill Williams have met 1 time; Williams leads 1–0.

Chauncy Welliver and Sonny Bill Williams have met 1 time; Williams leads 1–0.
Met2015Jan 31Series
Chauncy WelliverFighter ALLost0–1W–L
Sonny Bill WilliamsFighter BWWon1–0W–L
ResultUD1Meeting

The Numbers

Welliver 3 · Williams 5 of 8 measurable rows
WelliverWilliams
Record
57-13-59-2 (edge)
Win %0–100%
79.3%
81.8% (edge)
Wins by knockoutmax 23
23 (edge)
4
KO rate0–100%
40.35%
44.44% (edge)
Stoppage rate (tracked wins)†0–100%
40%
44% (edge)
Times stopped†max 4
4
1 (edge)
Title reignsmax 1
1 (edge)
0
Bouts per year‡max 3.8
3.8 (edge)
0.7
Bouts trackedcoveragemax 73
73
11

† 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

Height+1″
Chauncy Welliver: 6′2″
Sonny Bill Williams: 6′3″ (edge)
Age2 yrs apart
Chauncy Welliver: 43
Sonny Bill Williams: 41
Stance
Chauncy Welliver: Orthodox
Sonny Bill Williams: Orthodox

Chauncy Welliver left, Sonny Bill Williams right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Chauncy Welliver55 wins · from 73 tracked bouts

Chauncy Welliver: 55 tracked wins — 22 by KO/TKO (40%), 30 on the cards (55%) and 3 by another method or unrecorded (5%). Counted from 73 bouts Kill The Body has ingested.

22 by KO/TKO 40%30 on the cards 55%3 by another method or unrecorded 5%

Sonny Bill Williams9 wins · from 11 tracked bouts

Sonny Bill Williams: 9 tracked wins — 4 by KO/TKO (44%) and 5 on the cards (56%). Counted from 11 bouts Kill The Body has ingested.

4 by KO/TKO 44%5 on the cards 56%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Chauncy Welliver 73, Sonny Bill Williams 11 — 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

Chauncy Welliver last boxed on Aug 28, 2020 — 2,247 days ago. Welliver had lost six straight.LLLLL

Browne Nov 2014Ustinov Dec 2014Williams Jan 2015Brown Jul 2016Chaney Aug 20203.8 tracked bouts per year

Sonny Bill Williams has lost two straight, after three straight wins. Williams last boxed on Jul 16, 2025 — 464 days ago.WWWLL

Welliver Jan 2015Falefehi Jun 2021Hall Mar 2022Hunt Nov 2022Gallen Jul 20250.7 tracked bouts per year

Common Questions

With the rows behind them
Have Chauncy Welliver and Sonny Bill Williams ever fought each other?
Yes. Chauncy Welliver and Sonny Bill Williams met once on January 31, 2015, and Sonny Bill Williams won by UD.
The meeting

LJan 31, 2015 · Williams · UD

Head to Head ↓
Who has the better record, Welliver or Williams?
Chauncy Welliver is 57-13-5 and Sonny Bill Williams is 9-2. Sonny Bill Williams has the higher win percentage.
Records · win %

Welliver57–13–579.3%

Williams9–281.8%

The Numbers ↓
Who has more knockouts, Welliver or Williams?
Chauncy Welliver has 23 knockout wins and Sonny Bill Williams has 4. Chauncy Welliver has more.
Knockout wins · KO rate

Welliver2340.4%

Williams444.4%

The Numbers ↓
Do Welliver and Williams have any common opponents?
Kill The Body's bout data shows no opponents that both Chauncy Welliver and Sonny Bill Williams have faced.
Who is bigger, Welliver or Williams?
Sonny Bill Williams is the taller fighter at 190 cm, 2 cm above the other.
Height · reach

Welliver188 cm

Williams190 cm

Tale of the Tape ↓
How much fight data does Kill The Body have on Welliver and Williams?
This comparison is drawn from 73 bouts tracked for Chauncy Welliver and 11 bouts tracked for Sonny Bill Williams. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Welliver73bouts

Williams11bouts

How They Win ↓

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