// Roster Index›Welterweight›Dossier · John Mercurio
UFC FIGHTER PROFILE_
UFC · UNKNOWNWELTERWEIGHT

John
Mercurio

NICKNAME"Johnny Merc"·UNITED STATES
PROFESSIONAL RECORD
9-8-0
CURRENT FORM
1W STREAK
NEXT FIGHT
NO BOUT ANNOUNCED
John Mercurio
FIGHTER -
UNI🇺🇸
PROFILE PHOTO
PROFILE
PROFILE DATA! COLD
HEIGHT
6'1"
WEIGHT
Welterweight
PROFESSIONAL RECORD_
17 BOUTS
WIN
9
LOSS
8
DRAW
0
WIN RATE
53%
9/17 bouts
FINISH RATE
67%
of professional wins
LAST 5 FIGHTS1W STREAK · 3-2
LWWLW
STYLE SUMMARY_
DATA: COLD
FIGHTING STYLE
WELL ROUNDED

Well rounded fighter with no dominant single weapon — 56% 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

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
2.95
Strikes Landed/Min
Reference value 2.65
// STR. ACC▲ ABOVE
50%
Striking Accuracy
Reference value 47%
// SAPM▼ BELOW
2.74
Strikes Absorbed/Min
Reference value 2.74
// STR. DEF▼ BELOW
53%
Striking Defense
Reference value 53%
// TD AVG▼ BELOW
1.50
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▼ BELOW
0.50
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 99 rated fighters on the UFC welterweight roster (anyone with a UFC bout in the last two years or one booked).

THIN RATED HISTORY
// RATING
#100
against the 99 rated on the UFC welterweight roster · Elo 1448
// STRENGTH OF SCHEDULE
12th
percentile · average opponent rated 1508 at fight time (recent fights count most)
// RESULTS VS EXPECTATION
58th
percentile · beat what opponents' ratings predicted (+0.09 per fight)

8 rated fights · opponents rated in 47% of recorded fights · last rated fight MAR 29, 2019 · 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 (9)
n = 9
KO/TKO · 5
SUB · 1
DEC · 3
5
KO/TKO
56%
1
SUB
11%
3
DEC
33%
// LOSSES (8)
n = 8
KO/TKO · 3
SUB · 1
DEC · 4
3
KO/TKO
38%
1
SUB
13%
4
DEC
50%
// PATH_TO_VICTORY_
67% FINISH
KO/TKOEARLY ROUNDS · 5 fights
56%
SUBANY ROUND · 1 fights
11%
DECFULL FIGHT · 3 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
17 BOUTS
// PROFILE UPDATED
JUL 9, 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 POWER79TD DEFENSE44GRAPPLING40CHIN67STRIKING48CARDIO62AGGRESSION25SUB THREAT25STR DEFENSE51RECOVERY88
// BANDS
90+ELITE
70-89STRONG
45-69AVERAGE
30-44BELOW
<30LOW
N/AUNKNOWN
Highest scored axis: Recovery. Lowest scored axis: Sub Threat.
// EVIDENCE REGISTER
10 SCORED · 0 OPEN
KO Power79
DERIVED PROXY

KO wins divided by total career wins

N=9 wins
TD Defense44
OBSERVED INPUT

Observed takedown defense rate (60%)

Grappling40
DERIVED PROXY

Composite of observed takedown volume, accuracy, and submission rate

Chin67
DERIVED PROXY

KO-loss durability proxy from career record

N=17 bouts
Striking48
DERIVED PROXY

Composite of observed striking volume and accuracy

Cardio62
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 Threat25
OBSERVED INPUT

Observed submission rate (0.5 per 15 min)

Str Defense51
OBSERVED INPUT

Observed striking defense rate (53%)

Recovery88
DERIVED PROXY

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

N=8 losses
Fighter attribute fingerprint accessible data summary
AttributeScoreProvenanceEvidenceSample
KO Power79 out of 100DERIVED PROXYKO wins divided by total career wins9 wins
TD Defense44 out of 100OBSERVED INPUTObserved takedown defense rate (60%)Not recorded
Grappling40 out of 100DERIVED PROXYComposite of observed takedown volume, accuracy, and submission rateNot recorded
Chin67 out of 100DERIVED PROXYKO-loss durability proxy from career record17 bouts
Striking48 out of 100DERIVED PROXYComposite of observed striking volume and accuracyNot recorded
Cardio62 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 Threat25 out of 100OBSERVED INPUTObserved submission rate (0.5 per 15 min)Not recorded
Str Defense51 out of 100OBSERVED INPUTObserved striking defense rate (53%)Not recorded
Recovery88 out of 100DERIVED PROXYShare of recorded losses followed by a win in the next recorded bout.8 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
0255075100OCT 2008LOCT 2008WJUN 2009LNOV 2009WFEB 2010WJUN 2010LSEP 2010WMAY 2011LOCT 2011WJAN 2012LAPR 2012WDEC 2012LAPR 2014LOCT 2014WJUL 2015WAPR 2016LJAN 2017WMAR 2019// SCORE

  1. Start, OCT 2008, momentum score 45.
  2. Start, OCT 2008, momentum score 38, KO/TKO R2.
  3. Start, JUN 2009, momentum score 49, KO/TKO R1.
  4. Start, NOV 2009, momentum score 42, SUB R1.
  5. Start, FEB 2010, momentum score 49, DEC R3.
  6. Start, JUN 2010, momentum score 56, DEC R3.
  7. Start, SEP 2010, momentum score 49, DEC R3.
  8. Start, MAY 2011, momentum score 59, KO/TKO R1.
  9. Start, OCT 2011, momentum score 52, DEC R3.
  10. Start, JAN 2012, momentum score 62, SUB R1.
  11. Start, APR 2012, momentum score 55, KO/TKO R2.
  12. Start, DEC 2012, momentum score 65, KO/TKO R1.
  13. Start, APR 2014, momentum score 58, DEC R3.
  14. Start, OCT 2014, momentum score 51, DEC R3.
  15. Start, JUL 2015, momentum score 62, KO/TKO R1.
  16. Start, APR 2016, momentum score 72, KO/TKO R1.
  17. Start, JAN 2017, momentum score 65, KO/TKO R2.
  18. Start, MAR 2019, momentum score 72, DEC R3.

Peaked at 72 (W vs Lagler), bottomed at 38 (L vs Terrado). Current reading: 72.

// 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_
17/17 fights mapped
METHOD ↓ / ROUND →R1R2R3R4R5FREQ
KO/TKO
5
29%
3
18%
-
-
-
8
total
SUB
2
12%
-
-
-
-
2
total
DEC
-
-
7
41%
-
-
7
total
// PRIMARY KILL ZONE
R1-R2 KO/TKO · 8 of 17 mapped
// LATE-FIGHT GAP
No R5 finishes either way
// DECISION RATE
41%, fights often go the distance
// FIGHT_HISTORY · 08_

BOUT LOG
17 FIGHTS

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

W
VS Johnny CisnerosMar 29, 2019
DecisionR3 · 5:00
Bellator 219 - Awad vs. Girtz
SECONDARY DETAILS
METHOD
DETAIL
Decision (Majority)
L
VS Guilherme VasconcelosJan 21, 2017
KO/TKOR2 · 0:41
Bellator 170 - Sonnen vs. Ortiz
SECONDARY DETAILS
METHOD
DETAIL
KO (Punches)
W
VS Matt LaglerApr 7, 2016
KO/TKOR1 · 1:54
FCOC - Fight Club OC
SECONDARY DETAILS
METHOD
DETAIL
KO (Punch)
W
VS Gabriel LopezJul 10, 2015
KO/TKOR1 · 0:07
Lights Out / Bash Entertainment - Fight Night at Sportsmen's Lodge 3
SECONDARY DETAILS
METHOD
DETAIL
KO (Punch)
L
VS Justin BaesmanOct 3, 2014
DecisionR3 · 5:00
Bellator MMA - Bellator 127
SECONDARY DETAILS
METHOD
DETAIL
Decision (Split)
L
VS Curtis MillenderApr 17, 2014
DecisionR3 · 5:00
FCOC - Fight Club OC
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Jerome BuchananDec 22, 2012
KO/TKOR1 · 0:47
LOP - Chaos at the Casino 2
SECONDARY DETAILS
METHOD
DETAIL
KO (Punch)
L
VS Sam LieraApr 26, 2012
KO/TKOR2 · :29
KOTC - Hardcore
SECONDARY DETAILS
METHOD
DETAIL
TKO (Punches)
W
VS Dominic GutierrezJan 21, 2012
SubmissionR1 · 1:09
RITC - Respect in the Cage
SECONDARY DETAILS
METHOD
DETAIL
Submission (Choke)
L
VS Dave TerrelOct 13, 2011
DecisionR3 · 3:00
Fight Club OC - Fight Night
SECONDARY DETAILS
METHOD
DETAIL
Decision (Unanimous)
W
VS Connor BellMay 19, 2011
KO/TKOR1 · 1:02
Fight Club OC - Rumble on the Range
SECONDARY DETAILS
METHOD
DETAIL
KO (Punch)
L
VS Washington Nunes da SilvaSep 17, 2010
DecisionR3 · 3:00
Lords of Combat - Lords of SoCal: Round 1
SECONDARY DETAILS
METHOD
DETAIL
Decision (Split)
// FAQ · 09_

CITATION-READY ANSWERS

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

Welterweight. Professional record 9-8. Unranked at the time of indexing.

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// LAST INDEX SYNC · 2026-10-28