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.
Chauncey Fields (0-1 across 1 tracked bouts) and Gary O'Sullivan (31-6) 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.
Chauncey Fields vs Gary O'Sullivan — record, stats and common opponents compared
Head to Head
Gary O'Sullivan leads 1–0- Gary O'Sullivan wonO'Sullivan vs FieldsMay 13, 2017 · KO · R2
The Numbers
- 0-1
- Record
- 31-6 (edge)
- 0%
- Win %
- 83.8% (edge)
- 0
- Wins by knockout
- 21 (edge)
- —
- KO rate
- 67.74%
- —
- Stoppage rate (tracked wins)
- 66%
- 1 (edge)
- Times stopped
- 4
- 0
- Title reigns
- 0
- —
- Bouts per year
- 2.1
- 1
- Bouts tracked
- 38
One or both records are tracked, not career-verified.
Counted from bouts Kill The Body has ingested, not a career total.
Counted from bouts Kill The Body has ingested, not a career total.
Across each fighter's tracked career span.
Tale of the Tape
- —
- Height
- 5′10″ (178 cm)
- —
- Reach
- 70″ (179 cm)
- —
- Age
- 42
- —
- Stance
- Orthodox
- —
- Nationality
- Irish
How They Win
Tracked bouts onlyChauncey Fields · 0 wins
No tracked wins yet.
Gary O'Sullivan · 32 wins
KO/TKO
21
Decision
10
Other
1
Counted from the bouts Kill The Body has ingested for each fighter (1 and 38 respectively), 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
Chauncey Fields
L
L1 streak · last fought May 13, 2017
Gary O'Sullivan
WLLWL
W1 streak · last fought Oct 10, 2025
Common Questions
- Have Chauncey Fields and Gary O'Sullivan ever fought each other?
- Yes. Chauncey Fields and Gary O'Sullivan met once on May 13, 2017, and Gary O'Sullivan won by KO in round 2.
- Who has the better record, Chauncey Fields or Gary O'Sullivan?
- Chauncey Fields is 0-1 across the 1 bouts Kill The Body has tracked and Gary O'Sullivan is 31-6. Gary O'Sullivan has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
- Who has more knockouts, Chauncey Fields or Gary O'Sullivan?
- Chauncey Fields has 0 knockout wins and Gary O'Sullivan has 21. Gary O'Sullivan has more.
- Do Chauncey Fields and Gary O'Sullivan have any common opponents?
- Kill The Body's bout data shows no opponents that both Chauncey Fields and Gary O'Sullivan have faced.
- How much fight data does Kill The Body have on Chauncey Fields and Gary O'Sullivan?
- This comparison is drawn from 1 bout tracked for Chauncey Fields and 38 bouts tracked for Gary O'Sullivan. Method and activity splits reflect those bouts only.