// Roster Index›Light Heavyweight›Dossier · Stephan Bonnar
UFC FIGHTER PROFILE_
UFC · UNKNOWNLIGHT HEAVYWEIGHT

Stephan
Bonnar

NICKNAME"The American Psycho"·UNITED STATES
PROFESSIONAL RECORD
15-9-0
CURRENT FORM
2L STREAK
CURRENT GYM
Xtreme Couture
NEXT FIGHT
NO BOUT ANNOUNCED
Stephan Bonnar
FIGHTER -
UNI🇺🇸
PROFILE PHOTO
PROFILE
PROFILE DATA! COLD
HEIGHT
6'4"
REACH
6'7"
AGE
49
STANCE
ORTHODOX
WEIGHT
Light Heavyweight
PROFESSIONAL RECORD_
24 BOUTS
WIN
15
LOSS
9
DRAW
0
WIN RATE
63%
15/24 bouts
FINISH RATE
67%
of professional wins
LAST 5 FIGHTS2L STREAK · 3-2
WWWLL
STYLE SUMMARY_
DATA: COLD
FIGHTING STYLE
WELL ROUNDED

Well rounded fighter with no dominant single weapon — 47% of wins are by sub.

KEY STRENGTHS

Drags it to the mat and hunts the finish — submission threat opens up off transitions.

KEY RISKS

Volume strikers have outpointed across full fights — output drops after R2.

// PERFORMANCE_METRICS · 02_

STRIKE / GRAPPLE
VITALS

Observed profile rates compared with stored weight-class medians where coverage exists. Any fallback uses a labeled UFC reference average; no fallback is presented as a division median.

// SLPM▲ ABOVE
2.76
Strikes Landed/Min
Reference value 2.75
// STR. ACC▼ BELOW
38%
Striking Accuracy
Reference value 49%
// SAPM▼ BELOW
3.01
Strikes Absorbed/Min
Reference value 2.75
// STR. DEF▼ BELOW
52%
Striking Defense
Reference value 53%
// TD AVG▼ BELOW
1.32
Takedowns/15 min
Reference value 1.50
// TD ACC▼ BELOW
40%
Takedown Accuracy
Reference value 40%
// TD DEF▲ ABOVE
60%
Takedown Defense
Reference value 59%
// SUB AVG▲ ABOVE
1.00
Submissions/15 min
Reference value 0.50
// QUALITY_OF_COMPETITION · 02B_

WHO THEY
ACTUALLY FOUGHT

A record says how often a fighter won, not against whom. These ratings weigh every result by the opponent's strength at the time, then compare this fighter with the 56 rated fighters on the UFC light heavyweight roster (anyone with a UFC bout in the last two years or one booked).

// RATING
#32
against the 56 rated on the UFC light heavyweight roster · Elo 1535
// STRENGTH OF SCHEDULE
80th
percentile · average opponent rated 1596 at fight time (recent fights count most)
// RESULTS VS EXPECTATION
30th
percentile · fell short of what opponents' ratings predicted (-0.10 per fight)

19 rated fights · opponents rated in 79% of recorded fights · last rated fight NOV 15, 2014

// CAREER_BREAKDOWN · 03_

WIN CONDITION MAP

Where the wins come from, and where the losses came from. Method splits by knockout, submission, and decision.

// WINS (15)
n = 15
KO/TKO · 3
SUB · 7
DEC · 5
3
KO/TKO
20%
7
SUB
47%
5
DEC
33%
// LOSSES (9)
n = 9
KO/TKO · 3
DEC · 6
3
KO/TKO
33%
0
SUB
0%
6
DEC
67%
// PATH_TO_VICTORY_
67% FINISH
KO/TKOEARLY ROUNDS · 3 fights
20%
SUBANY ROUND · 7 fights
47%
DECFULL FIGHT · 5 fights
33%
Top win condition: ko/tko · early rounds.
// DNA_PROFILE · 04_

ATTRIBUTE FINGERPRINT

Evidence-backed 0-100 scores built only from observed profile stats and disclosed bout-history proxies. This is a fixed Blueprint scoring model, not a division percentile; missing axes remain unknown.

// DNA_PROFILE_
3 OBSERVED7 DERIVED0 UNKNOWN
// BENCHMARK
FIXED SCORE SCALE
// LINKED SAMPLE
24 BOUTS
// PROFILE UPDATED
OCT 3, 2026
// RECORDED SOURCE
ufcstats
Fighter attribute fingerprint10 of 10 attributes have evidence-backed scores on the Blueprint fixed scale. Unknown axes are not plotted and no score represents a division percentile.KO POWER29TD DEFENSE44GRAPPLING60CHIN73STRIKING29CARDIO75AGGRESSION25SUB THREAT50STR DEFENSE49RECOVERY50
// BANDS
90+ELITE
70-89STRONG
45-69AVERAGE
30-44BELOW
<30LOW
N/AUNKNOWN
Highest scored axis: Cardio. Lowest scored axis: Aggression.
// EVIDENCE REGISTER
10 SCORED · 0 OPEN
KO Power29
DERIVED PROXY

KO wins divided by total career wins

N=15 wins
TD Defense44
OBSERVED INPUT

Observed takedown defense rate (60%)

Grappling60
DERIVED PROXY

Composite of observed takedown volume, accuracy, and submission rate

Chin73
DERIVED PROXY

KO-loss durability proxy from career record

N=24 bouts
Striking29
DERIVED PROXY

Composite of observed striking volume and accuracy

Cardio75
DERIVED PROXY

Long-fight exposure proxy from bout duration and decision-win share

Aggression25
DERIVED PROXY

Activity proxy from observed strike and takedown volume

Sub Threat50
OBSERVED INPUT

Observed submission rate (1 per 15 min)

Str Defense49
OBSERVED INPUT

Observed striking defense rate (52%)

Recovery50
DERIVED PROXY

Share of recorded losses followed by a win in the next recorded bout.

N=9 losses
Fighter attribute fingerprint accessible data summary
AttributeScoreProvenanceEvidenceSample
KO Power29 out of 100DERIVED PROXYKO wins divided by total career wins15 wins
TD Defense44 out of 100OBSERVED INPUTObserved takedown defense rate (60%)Not recorded
Grappling60 out of 100DERIVED PROXYComposite of observed takedown volume, accuracy, and submission rateNot recorded
Chin73 out of 100DERIVED PROXYKO-loss durability proxy from career record24 bouts
Striking29 out of 100DERIVED PROXYComposite of observed striking volume and accuracyNot recorded
Cardio75 out of 100DERIVED PROXYLong-fight exposure proxy from bout duration and decision-win shareNot recorded
Aggression25 out of 100DERIVED PROXYActivity proxy from observed strike and takedown volumeNot recorded
Sub Threat50 out of 100OBSERVED INPUTObserved submission rate (1 per 15 min)Not recorded
Str Defense49 out of 100OBSERVED INPUTObserved striking defense rate (52%)Not recorded
Recovery50 out of 100DERIVED PROXYShare of recorded losses followed by a win in the next recorded bout.9 losses
// CAREER_MOMENTUM · 05_

THE ARC SO FAR

Rolling momentum score (0-100) recomputed after every bout. Weighted blend of result, opponent context, and method-of-finish, designed to show the shape, not the destination.

// MOMENTUM_TIMELINE_
SCOREWINLOSS
0255075100NOV 2001WNOV 2001WNOV 2001WJAN 2002WSEP 2002LSEP 2003WNOV 2003WAPR 2004WJUN 2004LAPR 2005WAUG 2005WJAN 2006WAPR 2006LJUN 2006LAUG 2006WJUL 2007WOCT 2007LJAN 2009LJUL 2009LFEB 2010WJUL 2010WDEC 2010WNOV 2011LOCT 2012LNOV 2014// SCORE

  1. Start, NOV 2001, momentum score 45.
  2. Start, NOV 2001, momentum score 55, SUB R1.
  3. Start, NOV 2001, momentum score 65, SUB R1.
  4. Start, JAN 2002, momentum score 74, SUB R1.
  5. Start, SEP 2002, momentum score 81, DEC R1.
  6. Start, SEP 2003, momentum score 72, KO/TKO R1.
  7. Start, NOV 2003, momentum score 81, SUB R1.
  8. Start, APR 2004, momentum score 92, KO/TKO R1.
  9. Start, JUN 2004, momentum score 100, SUB R1.
  10. Start, APR 2005, momentum score 93, DEC R3.
  11. Start, AUG 2005, momentum score 100, DEC R3.
  12. Start, JAN 2006, momentum score 100, SUB R1.
  13. Start, APR 2006, momentum score 100, DEC R3.
  14. Start, JUN 2006, momentum score 93, DEC R3.
  15. Start, AUG 2006, momentum score 86, DEC R3.
  16. Start, JUL 2007, momentum score 96, SUB R1.
  17. Start, OCT 2007, momentum score 100, KO/TKO R2.
  18. Start, JAN 2009, momentum score 93, DEC R3.
  19. Start, JUL 2009, momentum score 86, DEC R3.
  20. Start, FEB 2010, momentum score 79, KO/TKO R3.
  21. Start, JUL 2010, momentum score 88, KO/TKO R2.
  22. Start, DEC 2010, momentum score 95, DEC R3.
  23. Start, NOV 2011, momentum score 100, DEC R3.
  24. Start, OCT 2012, momentum score 90, KO/TKO R1.
  25. Start, NOV 2014, momentum score 83, DEC R3.

Peaked at 100 (W vs Sallee), bottomed at 45 (Debut). Current reading: 83.

// KILL_SHOT_MATRIX · 06_

WHEN THE FINISHES COME

Cross-tab of fight outcome by method and round. Reads top-down for method, left-right for round. Cyan intensity scales with frequency.

// METHOD × ROUND_
24/24 fights mapped
METHOD ↓ / ROUND →R1R2R3R4R5FREQ
KO/TKO
3
13%
2
8%
1
4%
-
-
6
total
SUB
7
29%
-
-
-
-
7
total
DEC
1
4%
-
10
42%
-
-
11
total
// PRIMARY KILL ZONE
R1-R2 KO/TKO · 5 of 24 mapped
// LATE-FIGHT GAP
No R5 finishes either way
// DECISION RATE
46%, fights often go the distance
GYM & TRAINING PARTNERS_

WHERE THE TRAINING HAPPENS

Camp affiliation matters for stylistic predictions. Who you spend 200 rounds a week with shapes how you fight on Saturday.

// CURRENT_GYM_
Xtreme Couture
VIEW FIGHTER DIRECTORY →
// STYLE_INFLUENCE_
BALANCED

Style tags inferred from per-fight rate stats: striking-first, wrestling-heavy, sub grappling, cage defense.

// RESOLVED_TRAINING_PARTNERS

No linked training partners are available for this gym yet.

// FIGHT_HISTORY · 08_

BOUT LOG
24 FIGHTS

Detailed bout records for the indexed tenure. Sorted most recent first.

L
VS Tito OrtizNov 15, 2014
DecisionR3 · 5:00
Bellator 131 - Tito vs. Bonnar
SECONDARY DETAILS
METHOD
DETAIL
Decision (Split)
L
VS Anderson SilvaOct 13, 2012
KO/TKOR1 · 4:40
UFC 153 - Silva vs. Bonnar
SECONDARY DETAILS
METHOD
DETAIL
TKO (Knee to the Body and Punches)
W
VS Kyle KingsburyNov 19, 2011
DecisionR3 · 5:00
UFC 139 - Shogun vs. Henderson
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Igor PokrajacDec 4, 2010
DecisionR3 · 5:00
UFC - The Ultimate Fighter 12 Finale
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Krzysztof SoszynskiJul 3, 2010
KO/TKOR2 · 3:08
UFC 116 - Lesnar vs. Carwin
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
L
VS Krzysztof SoszynskiFeb 20, 2010
KO/TKOR3 · 1:04
UFC 110 - Nogueira vs. Velasquez
SECONDARY DETAILS
METHOD
DETAIL
TKO (Doctor Stoppage)
L
VS Mark ColemanJul 11, 2009
DecisionR3 · 5:00
UFC 100 - Lesnar vs. Mir 2
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
L
VS Jon JonesJan 31, 2009
DecisionR3 · 5:00
UFC 94 - St. Pierre vs. Penn 2
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Eric SchaferOct 20, 2007
KO/TKOR2 · 2:47
UFC 77 - Hostile Territory
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
W
VS Mike NickelsJul 7, 2007
SubmissionR1 · 2:14
UFC 73 - Stacked
SECONDARY DETAILS
METHOD
DETAIL
Submission (Rear-Naked Choke)
L
VS Forrest GriffinAug 26, 2006
DecisionR3 · 5:00
UFC 62 - Liddell vs. Sobral
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
L
VS Rashad EvansJun 28, 2006
DecisionR3 · 5:00
UFC Fight Night 5 - Leben vs. Silva
SECONDARY DETAILS
METHOD
DETAIL
Decision (Majority)
// FAQ · 09_

CITATION-READY ANSWERS

Quick answers based on the public fighter profile and fight history shown on this page.

Light Heavyweight. Professional record 15-9. Unranked at the time of indexing.

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// LAST INDEX SYNC · 2026-10-28