Sonny Bill Williams vs Stephen Thompson
Head-to-head comparison — tale of the tape, career analysis, stylistic breakdown, and prediction factors

Sonny Bill Williams
"SBW"
11-2-0
Stephen Thompson
"Wonderboy"
17-9-1Physical Comparison
Record & Experience
Sonny Bill Williams brings a record of 11-2-0 across 13 professional bouts (85% win rate).Stephen Thompson enters with 17-9-1 from 27 fights (63% win rate).
Stephen Thompson has the experience edge with 27 bouts compared to 13 — that's 14 more fights under the bright lights, which can matter in championship rounds when fatigue sets in and composure is tested.
In terms of finishing power, Stephen Thompson carries the heavier hands with a 47% stoppage rate vs 0% for Sonny Bill Williams. Thompson is the more dangerous finisher of the two.
Age & Career Stage
At 40, Sonny Bill Williams is 3 years younger than Stephen Thompson (43). Youth can translate to speed, recovery, and a longer runway — but Thompson's experience and ring IQ shouldn't be underestimated.
Key Factors
Williams's Path to Victory
- • Trust the higher win rate (85% vs 63%)
- • Establish rhythm early and dictate the pace
Thompson's Path to Victory
- • Greater professional experience (27 bouts)
- • Apply pressure and force the fight on their terms