Ultimate Fighting Calendar
UFCUFC Fight Night: Joanna vs Waterson
Women's Strawweight3 rounds scheduled
Mackenzie Dern
Mackenzie Dern
17-5-0
RESULT

Amanda Ribas def. Mackenzie Dern (Unanimous Decision)

Unanimous Decision · Round 3 · 5:00
WIN
Amanda Ribas
BrazilAmanda Ribas
13-7-0
Sunday, October 13, 2019
Amalie Arena, Tampa, United States

Amanda Ribas defeated Mackenzie Dern by Unanimous Decision in round 3 (5:00) in the Women's Strawweight bout of UFC Fight Night: Joanna vs Waterson, held Sunday, October 13, 2019 at Amalie Arena, Tampa. The judges scored it 30-27, 30-27, 30-27, Amanda Ribas won the decision.

Fight stats

Mackenzie Dern
Amanda Ribas
0
Knockdowns
0
20 of 145
Significant strikes
74 of 206
14%
Sig. strike accuracy
36%
50 of 175
Total strikes
84 of 216
0 of 6
Takedowns
2 of 2
0%
Takedown accuracy
100%
0
Submission attempts
0
0
Reversals
0
0:02
Control time
1:47
Significant strikes by target
16 of 135
Head
40 of 163
3 of 8
Body
21 of 28
1 of 2
Leg
13 of 15
19 of 144
Distance
72 of 203
0 of 0
Clinch
0 of 0
1 of 1
Ground
2 of 3

By round

ROUND 1
0
KD
0
4 of 44
Sig. str.
16 of 57
30 of 70
Total str.
19 of 60
0 of 1
Takedowns
1 of 1
0
Sub. att
0
0:02
Ctrl
1:13
ROUND 2
0
KD
0
9 of 50
Sig. str.
22 of 76
13 of 54
Total str.
25 of 79
0 of 3
Takedowns
1 of 1
0
Sub. att
0
0:00
Ctrl
0:25
ROUND 3
0
KD
0
7 of 51
Sig. str.
36 of 73
7 of 51
Total str.
40 of 77
0 of 2
Takedowns
0 of 0
0
Sub. att
0
0:00
Ctrl
0:09

Judges' Scorecards

Michelle Olney
#DernRibas
1910
2910
3910
Total2730
Tony Weeks
#DernRibas
1910
2910
3910
Total2730
Troy Wincapaw
#DernRibas
1910
2910
3910
Total2730

Media Scores

0
Dern
-
16
Ribas
●30-27 Ribas×14●30-26 Ribas×2
All 16 media scorecards▾

Fan Scorecards

0%
Dern
100%
Ribas
29 fan scorecards submitted
●30-27 Ribas89.7%●30-26 Ribas6.9%●30-25 Ribas3.4%
Fans' round-by-round verdict
R1
100%
Ribas
R2
97%
Ribas
R3
93%
Ribas

Scorecard data via mmadecisions.com

Betting Odds

Mackenzie Dern
-171
63% implied win probability
Open: -163Best: -142
Amanda Ribas
+139
42% implied win probability
Open: +130Best: +153

Average moneyline across 6 sportsbooks.

Line Movement

Mackenzie DernAmanda Ribas
40%50%60%Sep 29Oct 4Oct 8Oct 13Sep 29, 9:50 PM UTC · Mackenzie Dern -140 (58%)Oct 1, 3:40 AM UTC · Mackenzie Dern -160 (62%)Oct 1, 1:25 PM UTC · Mackenzie Dern -170 (63%)Oct 5, 5:35 AM UTC · Mackenzie Dern -172 (63%)Oct 5, 6:30 PM UTC · Mackenzie Dern -171 (63%)Oct 5, 10:25 PM UTC · Mackenzie Dern -171 (63%)Oct 6, 5:55 PM UTC · Mackenzie Dern -169 (63%)Oct 6, 6:25 PM UTC · Mackenzie Dern -171 (63%)Oct 6, 9:30 PM UTC · Mackenzie Dern -171 (63%)Oct 7, 4:50 AM UTC · Mackenzie Dern -167 (63%)Oct 7, 8:00 AM UTC · Mackenzie Dern -165 (62%)Oct 7, 11:10 AM UTC · Mackenzie Dern -164 (62%)Oct 7, 11:10 AM UTC · Mackenzie Dern -168 (63%)Oct 7, 2:15 PM UTC · Mackenzie Dern -165 (62%)Oct 7, 2:35 PM UTC · Mackenzie Dern -161 (62%)Oct 7, 3:10 PM UTC · Mackenzie Dern -158 (61%)Oct 7, 3:40 PM UTC · Mackenzie Dern -155 (61%)Oct 7, 4:00 PM UTC · Mackenzie Dern -153 (60%)Oct 7, 5:30 PM UTC · Mackenzie Dern -149 (60%)Oct 7, 5:50 PM UTC · Mackenzie Dern -145 (59%)Oct 7, 5:55 PM UTC · Mackenzie Dern -147 (60%)Oct 7, 6:40 PM UTC · Mackenzie Dern -146 (59%)Oct 7, 8:05 PM UTC · Mackenzie Dern -142 (59%)Oct 7, 9:00 PM UTC · Mackenzie Dern -139 (58%)Oct 7, 9:10 PM UTC · Mackenzie Dern -135 (57%)Oct 7, 9:10 PM UTC · Mackenzie Dern -130 (57%)Oct 7, 9:20 PM UTC · Mackenzie Dern -131 (57%)Oct 7, 9:50 PM UTC · Mackenzie Dern -130 (57%)Oct 7, 10:10 PM UTC · Mackenzie Dern -131 (57%)Oct 8, 1:45 AM UTC · Mackenzie Dern -133 (57%)Oct 8, 5:05 AM UTC · Mackenzie Dern -135 (57%)Oct 8, 5:30 AM UTC · Mackenzie Dern -136 (58%)Oct 8, 6:10 AM UTC · Mackenzie Dern -136 (58%)Oct 8, 9:40 PM UTC · Mackenzie Dern -139 (58%)Oct 9, 2:55 AM UTC · Mackenzie Dern -140 (58%)Oct 9, 8:45 AM UTC · Mackenzie Dern -142 (59%)Oct 9, 10:10 AM UTC · Mackenzie Dern -141 (59%)Oct 9, 5:55 PM UTC · Mackenzie Dern -143 (59%)Oct 10, 3:55 AM UTC · Mackenzie Dern -146 (59%)Oct 10, 6:50 AM UTC · Mackenzie Dern -146 (59%)Oct 10, 3:10 PM UTC · Mackenzie Dern -144 (59%)Oct 10, 3:23 PM UTC · Mackenzie Dern -141 (59%)Oct 10, 3:42 PM UTC · Mackenzie Dern -144 (59%)Oct 10, 6:40 PM UTC · Mackenzie Dern -146 (59%)Oct 10, 8:12 PM UTC · Mackenzie Dern -144 (59%)Oct 10, 10:10 PM UTC · Mackenzie Dern -141 (59%)Oct 11, 1:20 AM UTC · Mackenzie Dern -141 (59%)Oct 11, 6:25 AM UTC · Mackenzie Dern -143 (59%)Oct 12, 12:00 AM UTC · Mackenzie Dern -146 (59%)Oct 12, 3:10 AM UTC · Mackenzie Dern -145 (59%)Oct 12, 8:20 AM UTC · Mackenzie Dern -145 (59%)Oct 12, 4:30 PM UTC · Mackenzie Dern -147 (60%)Oct 12, 7:00 PM UTC · Mackenzie Dern -149 (60%)Oct 12, 8:30 PM UTC · Mackenzie Dern -151 (60%)Oct 12, 10:50 PM UTC · Mackenzie Dern -153 (60%)Oct 12, 11:00 PM UTC · Mackenzie Dern -155 (61%)Oct 13, 12:30 AM UTC · Mackenzie Dern -156 (61%)Oct 13, 12:40 AM UTC · Mackenzie Dern -157 (61%)Oct 13, 12:50 AM UTC · Mackenzie Dern -161 (62%)Oct 13, 12:55 AM UTC · Mackenzie Dern -162 (62%)Oct 13, 12:55 AM UTC · Mackenzie Dern -166 (62%)Oct 13, 1:00 AM UTC · Mackenzie Dern -169 (63%)Oct 13, 1:05 AM UTC · Mackenzie Dern -164 (62%)Oct 13, 1:10 AM UTC · Mackenzie Dern -165 (62%)Oct 13, 1:10 AM UTC · Mackenzie Dern -168 (63%)Oct 13, 1:10 AM UTC · Mackenzie Dern -172 (63%)Oct 13, 1:20 AM UTC · Mackenzie Dern -171 (63%)Oct 13, 1:20 AM UTC · Mackenzie Dern -171 (63%)Sep 29, 9:50 PM UTC · Amanda Ribas +110 (48%)Oct 1, 3:40 AM UTC · Amanda Ribas +120 (45%)Oct 1, 1:25 PM UTC · Amanda Ribas +140 (42%)Oct 5, 5:35 AM UTC · Amanda Ribas +136 (42%)Oct 5, 6:30 PM UTC · Amanda Ribas +136 (42%)Oct 5, 10:25 PM UTC · Amanda Ribas +134 (43%)Oct 6, 5:55 PM UTC · Amanda Ribas +134 (43%)Oct 6, 6:25 PM UTC · Amanda Ribas +133 (43%)Oct 6, 9:30 PM UTC · Amanda Ribas +134 (43%)Oct 7, 4:50 AM UTC · Amanda Ribas +134 (43%)Oct 7, 8:00 AM UTC · Amanda Ribas +133 (43%)Oct 7, 11:10 AM UTC · Amanda Ribas +133 (43%)Oct 7, 11:10 AM UTC · Amanda Ribas +134 (43%)Oct 7, 2:15 PM UTC · Amanda Ribas +132 (43%)Oct 7, 2:35 PM UTC · Amanda Ribas +131 (43%)Oct 7, 3:10 PM UTC · Amanda Ribas +131 (43%)Oct 7, 3:40 PM UTC · Amanda Ribas +125 (44%)Oct 7, 4:00 PM UTC · Amanda Ribas +122 (45%)Oct 7, 5:30 PM UTC · Amanda Ribas +121 (45%)Oct 7, 5:50 PM UTC · Amanda Ribas +120 (45%)Oct 7, 5:55 PM UTC · Amanda Ribas +120 (45%)Oct 7, 6:40 PM UTC · Amanda Ribas +118 (46%)Oct 7, 8:05 PM UTC · Amanda Ribas +114 (47%)Oct 7, 9:00 PM UTC · Amanda Ribas +110 (48%)Oct 7, 9:10 PM UTC · Amanda Ribas +109 (48%)Oct 7, 9:10 PM UTC · Amanda Ribas +104 (49%)Oct 7, 9:20 PM UTC · Amanda Ribas +106 (49%)Oct 7, 9:50 PM UTC · Amanda Ribas +104 (49%)Oct 7, 10:10 PM UTC · Amanda Ribas +106 (49%)Oct 8, 1:45 AM UTC · Amanda Ribas +107 (48%)Oct 8, 5:05 AM UTC · Amanda Ribas +108 (48%)Oct 8, 5:30 AM UTC · Amanda Ribas +110 (48%)Oct 8, 6:10 AM UTC · Amanda Ribas +109 (48%)Oct 8, 9:40 PM UTC · Amanda Ribas +110 (48%)Oct 9, 2:55 AM UTC · Amanda Ribas +112 (47%)Oct 9, 8:45 AM UTC · Amanda Ribas +113 (47%)Oct 9, 10:10 AM UTC · Amanda Ribas +113 (47%)Oct 9, 5:55 PM UTC · Amanda Ribas +116 (46%)Oct 10, 3:55 AM UTC · Amanda Ribas +119 (46%)Oct 10, 6:50 AM UTC · Amanda Ribas +118 (46%)Oct 10, 3:10 PM UTC · Amanda Ribas +114 (47%)Oct 10, 3:23 PM UTC · Amanda Ribas +116 (46%)Oct 10, 3:42 PM UTC · Amanda Ribas +117 (46%)Oct 10, 6:40 PM UTC · Amanda Ribas +118 (46%)Oct 10, 8:12 PM UTC · Amanda Ribas +116 (46%)Oct 10, 10:10 PM UTC · Amanda Ribas +116 (46%)Oct 11, 1:20 AM UTC · Amanda Ribas +115 (47%)Oct 11, 6:25 AM UTC · Amanda Ribas +117 (46%)Oct 12, 12:00 AM UTC · Amanda Ribas +118 (46%)Oct 12, 3:10 AM UTC · Amanda Ribas +118 (46%)Oct 12, 8:20 AM UTC · Amanda Ribas +119 (46%)Oct 12, 4:30 PM UTC · Amanda Ribas +121 (45%)Oct 12, 7:00 PM UTC · Amanda Ribas +122 (45%)Oct 12, 8:30 PM UTC · Amanda Ribas +124 (45%)Oct 12, 10:50 PM UTC · Amanda Ribas +125 (44%)Oct 12, 11:00 PM UTC · Amanda Ribas +126 (44%)Oct 13, 12:30 AM UTC · Amanda Ribas +128 (44%)Oct 13, 12:40 AM UTC · Amanda Ribas +128 (44%)Oct 13, 12:50 AM UTC · Amanda Ribas +130 (43%)Oct 13, 12:55 AM UTC · Amanda Ribas +134 (43%)Oct 13, 12:55 AM UTC · Amanda Ribas +135 (43%)Oct 13, 1:00 AM UTC · Amanda Ribas +138 (42%)Oct 13, 1:05 AM UTC · Amanda Ribas +136 (42%)Oct 13, 1:10 AM UTC · Amanda Ribas +135 (43%)Oct 13, 1:10 AM UTC · Amanda Ribas +137 (42%)Oct 13, 1:10 AM UTC · Amanda Ribas +139 (42%)Oct 13, 1:20 AM UTC · Amanda Ribas +140 (42%)Oct 13, 1:20 AM UTC · Amanda Ribas +139 (42%)-171+139
SportsbookMackenzie DernAmanda Ribas
Bookmaker-179+140
Bovada-185+150
Cloudbet-182+153
Pinnacle-142+125
sports-interaction-180+135
unibet-167+130

Odds are for information only. · Odds data: fightodds.io

Frequently asked questions

Who won Mackenzie Dern vs Amanda Ribas?

Amanda Ribas defeated Mackenzie Dern by Unanimous Decision in round 3 (5:00) in the Women's Strawweight bout of UFC Fight Night: Joanna vs Waterson, held Sunday, October 13, 2019 at Amalie Arena, Tampa. The judges scored it 30-27, 30-27, 30-27, Amanda Ribas won the decision.

What were the judges' scorecards for Mackenzie Dern vs Amanda Ribas?

The judges scored it 30-27, 30-27, 30-27, Amanda Ribas won the decision.

Was Mackenzie Dern vs Amanda Ribas a robbery?

Public scoring backed the judges: 100% of 29 fan cards scored it for Amanda Ribas; 100% of 16 media scores picked Amanda Ribas.

Full robbery index →
Referee
Michael Cardoso
Time format
3 Rnd (5-5-5)
Pre-fight comparison▾

Win probability

Mackenzie Dern 65%35% Amanda Ribas

What the model gave each fighter going into the fight, from their pre-fight UFCalendar Power Index ratings. See the full Power Index

Fight DNA

Head to head

UFCalendar's style model · Women's Strawweight roster (9 fighters)

Mackenzie Dern
Submission Ace
9 edges
Amanda Ribas
Pressure Wrestler
2 edges
PowerSpeedPrecisionDurabilityEngineWrestlingGround

Radar scaled to this matchup · bars show the gap

Style shape

91Power63
91Speed87
90Precision71
92Durability74
93Engine97
90Wrestling94
95Ground89

Biggest edge Mackenzie Dern, Punch power +40

Attribute by attribute

Mackenzie Dern is on the left of every row, Amanda Ribas on the right.
92Punch power52
90Kick power74
92Punch speed88
89Kick speed85
90Accuracy71
90Takedowns94
92Ground striking83
98Submissions94
93Chin69
90Body strength78
93Cardio97

Attributes are rated 0-100 by UFCalendar's style model.

Tale of the Tape

17-5-0
Record
13-7-0
1705
Power Index rating
1597
4
Win Streak
0
33
Age
33
5'4"
163 cm
Height
5'4"
163 cm
63"
160 cm
Reach
66"
168 cm
Orthodox
Stance
Orthodox
Women's Strawweight
Weight Class
Women's Strawweight
United States / Brazil
Nationality
Brazil

Style Matchup

BJJNo-Gi Grappling
vs
-
Mackenzie Dern
  • 2012Black belt · BJJ · Wellington "Megaton" Dias
  • 2016Champion · IBJJF Worlds · black belt -59 kg
  • 2016Bronze · IBJJF Worlds · black belt absolute
  • 2016Champion · IBJJF Pans · black belt -59 kg

Camp Megaton Brazilian Jiu-Jitsu (Megaton Dias BJJ) · Phoenix, Arizona, US

Amanda Ribas

No background on record

Striking Profile

3.38
SLpM
4.26
41%
Str. Acc.
39%
3.74
SApM
3.29
52%
Str. Def.
60%

Grappling Profile

1.07
TD Avg.
2.05
21%
TD Acc.
52%
40%
TD Def.
82%
1.00
Sub. Avg.
0.60

Recent form (last 5 fights)

Mackenzie Dern · 4-1
  • W
    Gillian Robertson
    UFC 330: Makhachev vs Machado Garry · Aug 15, 2026
    Unanimous Decision · R5 · 5:00 · Women's Strawweight
  • W
    Virna Jandiroba
    UFC 321: Aspinall vs Gane · Oct 25, 2025
    Unanimous Decision · R5 · 5:00 · Women's Strawweight
  • W
    Amanda Ribas
    UFC Fight Night: Dern vs Ribas 2 · Jan 11, 2025
    Submission · R3 · 4:56 · Women's Strawweight
  • L
    Ffion Davies
    Craig Jones Invitational 1 · Aug 17, 2024
    · R1 · 5:44 · Flyweight
  • W
    Loopy Godinez
    UFC Fight Night: Sandhagen vs Nurmagomedov · Aug 3, 2024
    Unanimous Decision · R3 · 5:00 · Women's Strawweight
Amanda Ribas · 1-4
  • L
    Tabatha Ricci
    UFC Fight Night: Whittaker vs De Ridder · Jul 26, 2025
    TKO · R2 · 2:59 · Women's Strawweight
  • L
    Mackenzie Dern
    UFC Fight Night: Dern vs Ribas 2 · Jan 11, 2025
    Submission · R3 · 4:56 · Women's Strawweight
  • L
    Rose Namajunas
    UFC Fight Night: Ribas vs Namajunas · Mar 23, 2024
    Unanimous Decision · R5 · 5:00 · Women's Flyweight
  • W
    Luana Pinheiro
    UFC Fight Night: Allen vs Craig · Nov 18, 2023
    TKO · R3 · 3:53 · Women's Strawweight
  • L
    Maycee Barber
    UFC Fight Night: Emmett vs Topuria · Jun 24, 2023
    TKO · R2 · 3:42 · Women's Flyweight

Career Averages

Based on 17 fights · 13 fights
50.1
Avg sig. strikes
52.8
1.06
Avg takedowns
1.69
4:23
Avg control time
3:18
126
Career high strikes
98
4
Career high TDs
4

Strike Distribution

Mackenzie Dern
Strike target
Amanda Ribas
74%
Head
61%
15%
Body
18%
11%
Leg
21%
Mackenzie Dern
Strike position
Amanda Ribas
74%
Distance
86%
10%
Clinch
5%
17%
Ground
9%