// Roster Index›Heavyweight›Dossier · William Penn
UFC FIGHTER PROFILE_
UFC · UNKNOWNHEAVYWEIGHT

William
Penn

NICKNAME"The King"·UNITED STATES
PROFESSIONAL RECORD
8-5-0
CURRENT FORM
1L STREAK
NEXT FIGHT
NO BOUT ANNOUNCED
FIGHTER -
UNI🇺🇸
PHOTO NOT AVAILABLE
PROFILE
PROFILE DATA! COLD
HEIGHT
5'9"
REACH
5'10"
AGE
47
STANCE
ORTHODOX
WEIGHT
Heavyweight
PROFESSIONAL RECORD_
13 BOUTS
WIN
8
LOSS
5
DRAW
0
WIN RATE
62%
8/13 bouts
FINISH RATE
63%
of professional wins
LAST 5 FIGHTS1L STREAK · 3-2
WWLWL
STYLE SUMMARY_
DATA: COLD
FIGHTING STYLE
WELL ROUNDED

Well rounded fighter with elite knockout power — 63% of wins are by ko/tko.

KEY STRENGTHS

Closes distance and trades — most wins come from heavy hands inside the first two rounds.

KEY RISKS

Pressure boxers willing to wade into the pocket have found chins on offer; cardio drops in late rounds.

// 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 2.60
// STR. ACC▲ ABOVE
48%
Striking Accuracy
Reference value 45%
// SAPM▼ BELOW
3.20
Strikes Absorbed/Min
Reference value 2.70
// STR. DEF▲ ABOVE
56%
Striking Defense
Reference value 50%
// TD AVG▲ ABOVE
1.19
Takedowns/15 min
Reference value 0.72
// TD ACC▲ ABOVE
55%
Takedown Accuracy
Reference value 30%
// TD DEF▲ ABOVE
74%
Takedown Defense
Reference value 50%
// SUB AVG▲ ABOVE
0.50
Submissions/15 min
Reference value 0.00
// 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 64 rated fighters on the UFC heavyweight roster (anyone with a UFC bout in the last two years or one booked).

THIN RATED HISTORY
// RATING
#60
against the 64 rated on the UFC heavyweight roster · Elo 1481
// STRENGTH OF SCHEDULE
69th
percentile · average opponent rated 1556 at fight time (recent fights count most)
// RESULTS VS EXPECTATION
30th
percentile · fell short of what opponents' ratings predicted (-0.03 per fight)

6 rated fights · opponents rated in 46% of recorded fights · last rated fight AUG 29, 2015 · Few rated fights: read these as rough.

// 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 (8)
n = 8
KO/TKO · 5
DEC · 3
5
KO/TKO
63%
0
SUB
0%
3
DEC
38%
// LOSSES (5)
n = 5
KO/TKO · 3
SUB · 1
DEC · 1
3
KO/TKO
60%
1
SUB
20%
1
DEC
20%
// PATH_TO_VICTORY_
63% FINISH
KO/TKOEARLY ROUNDS · 5 fights
63%
DECFULL FIGHT · 3 fights
38%
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
13 BOUTS
// PROFILE UPDATED
AUG 12, 2026
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 POWER89TD DEFENSE76GRAPPLING45CHIN60STRIKING43CARDIO59AGGRESSION25SUB THREAT25STR DEFENSE58RECOVERY75
// BANDS
90+ELITE
70-89STRONG
45-69AVERAGE
30-44BELOW
<30LOW
N/AUNKNOWN
Highest scored axis: KO Power. Lowest scored axis: Sub Threat.
// EVIDENCE REGISTER
10 SCORED · 0 OPEN
KO Power89
DERIVED PROXY

KO wins divided by total career wins

N=8 wins
TD Defense76
OBSERVED INPUT

Observed takedown defense rate (74%)

Grappling45
DERIVED PROXY

Composite of observed takedown volume, accuracy, and submission rate

Chin60
DERIVED PROXY

KO-loss durability proxy from career record

N=13 bouts
Striking43
DERIVED PROXY

Composite of observed striking volume and accuracy

Cardio59
DERIVED PROXY

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

N=13 bouts
Aggression25
DERIVED PROXY

Activity proxy from observed strike and takedown volume

Sub Threat25
OBSERVED INPUT

Observed submission rate (0.5 per 15 min)

Str Defense58
OBSERVED INPUT

Observed striking defense rate (56%)

Recovery75
DERIVED PROXY

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

N=5 losses
Fighter attribute fingerprint accessible data summary
AttributeScoreProvenanceEvidenceSample
KO Power89 out of 100DERIVED PROXYKO wins divided by total career wins8 wins
TD Defense76 out of 100OBSERVED INPUTObserved takedown defense rate (74%)Not recorded
Grappling45 out of 100DERIVED PROXYComposite of observed takedown volume, accuracy, and submission rateNot recorded
Chin60 out of 100DERIVED PROXYKO-loss durability proxy from career record13 bouts
Striking43 out of 100DERIVED PROXYComposite of observed striking volume and accuracyNot recorded
Cardio59 out of 100DERIVED PROXYLong-fight exposure proxy from bout duration and decision-win share13 bouts
Aggression25 out of 100DERIVED PROXYActivity proxy from observed strike and takedown volumeNot recorded
Sub Threat25 out of 100OBSERVED INPUTObserved submission rate (0.5 per 15 min)Not recorded
Str Defense58 out of 100OBSERVED INPUTObserved striking defense rate (56%)Not recorded
Recovery75 out of 100DERIVED PROXYShare of recorded losses followed by a win in the next recorded bout.5 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
0255075100MAR 2010LMAR 2010WJUN 2010WNOV 2010WJAN 2011LMAR 2011LAPR 2011WJUN 2011WAUG 2011WNOV 2011WJUN 2012LMAR 2014WJUN 2015LAUG 2015// SCORE

  1. Start, MAR 2010, momentum score 45.
  2. Start, MAR 2010, momentum score 35, KO/TKO R1.
  3. Start, JUN 2010, momentum score 46, KO/TKO R1.
  4. Start, NOV 2010, momentum score 56, KO/TKO R1.
  5. Start, JAN 2011, momentum score 63, DEC R3.
  6. Start, MAR 2011, momentum score 53, KO/TKO R1.
  7. Start, APR 2011, momentum score 44, KO/TKO R1.
  8. Start, JUN 2011, momentum score 51, DEC R3.
  9. Start, AUG 2011, momentum score 61, KO/TKO R1.
  10. Start, NOV 2011, momentum score 72, KO/TKO R1.
  11. Start, JUN 2012, momentum score 82, KO/TKO R1.
  12. Start, MAR 2014, momentum score 75, DEC R3.
  13. Start, JUN 2015, momentum score 82, DEC R3.
  14. Start, AUG 2015, momentum score 75, SUB R1.

Peaked at 82 (W vs Riley), bottomed at 35 (L vs Lopez). Current reading: 75.

// 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_
13/13 fights mapped
METHOD ↓ / ROUND →R1R2R3R4R5FREQ
KO/TKO
8
62%
-
-
-
-
8
total
SUB
1
8%
-
-
-
-
1
total
DEC
-
-
4
31%
-
-
4
total
// PRIMARY KILL ZONE
R1-R2 KO/TKO · 8 of 13 mapped
// LATE-FIGHT GAP
No R5 finishes either way
// DECISION RATE
31%, fights often go the distance
// FIGHT_HISTORY · 08_

BOUT LOG
13 FIGHTS

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

L
VS Satoshi IshiiAug 29, 2015
SubmissionR1 · 3:07
IGF - Inoki Genome Fight 4
SECONDARY DETAILS
METHOD
DETAIL
Submission (Rear-Naked Choke)
W
VS Anthony GomezJun 6, 2015
DecisionR3 · 5:00
HFC 24 - Hoosier Fight Club 24
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
L
VS John HawkMar 1, 2014
DecisionR3 · 5:00
NAAFS - Driven MMA 1
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Jason RileyJun 23, 2012
KO/TKOR1 · 3:05
NFC 7 - Field of Fury
SECONDARY DETAILS
METHOD
DETAIL
KO (Punches)
W
VS Josh HendricksNov 23, 2011
KO/TKOR1 · 1:27
NAAFS - Night of Champions 2011
SECONDARY DETAILS
METHOD
DETAIL
KO (Punches)
W
VS Shayne AdamsAug 20, 2011
KO/TKOR1 · 1:42
FT - Fight Tour
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
W
VS Rob ArnettJun 17, 2011
DecisionR3 · 5:00
LOF 47 - Big Dawgs
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
L
VS Stipe MiocicApr 16, 2011
KO/TKOR1 · 2:23
NAAFS - Caged Vengeance 9
SECONDARY DETAILS
METHOD
DETAIL
KO (Punch)
L
VS Blagoy IvanovMar 26, 2011
KO/TKOR1 · 2:58
BFC - Bellator Fighting Championships 38
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
W
VS Rob ArnettJan 21, 2011
DecisionR3 · 5:00
LOF 44 - Against All Odds
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Jason MillsNov 24, 2010
KO/TKOR1 · 2:12
NAFC - Bad Blood
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
W
VS William CliffordJun 19, 2010
KO/TKOR1 · 1:29
BUCB - Bobish's Ultimate Cage Battles
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
// FAQ · 09_

CITATION-READY ANSWERS

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

Heavyweight. Professional record 8-5. Unranked at the time of indexing.

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// FORECAST_AVAILABLE_
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// LAST INDEX SYNC · 2026-10-28