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UFC 251: Usman vs. Masvidal
Amanda Ribas
Amanda Ribas
8-1 · BRA
VS
Paige VanZant
Paige VanZant
8-4 · USA
July 11, 2020 · Abu Dhabi, Abu Dhabi, United Arab Emirates
Flyweight · 3 rounds
126.0lb
Weigh-in
126.0lb
Amanda Ribas def. Paige VanZant by SUB (Armbar), R1 2:21
Performance
Round by round
SSTDKDCtrl
R1 · 2:21
Ribas6/71/101:08
VanZant3/50/000:32
Total
Ribas6/71/101:08
VanZant3/50/000:32

Pre-fight

The model's read going in

The walk-forward model's call at the time of the bout — persisted out-of-sample, with no hindsight about the result.

Prediction
RibasWin probabilityVanZant
63.7%36.3%
KO / TKO
24%
Submission
41%
Decision
35%
Expected fight time: 8.2 min
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward Ribas, blue toward VanZant. Tap a bar for why.

Predicted outcomes
Ribas64%
Wins by
Model
Equity
Mkt
KO / TKO14%22%
Submission26%41%
Decision24%37%
Predicted output
Sig. strikes34 (1944)act 6
Takedowns1.2 (0.03.4)act 1
VanZant36%
Wins by
Model
Equity
Mkt
KO / TKO10%28%
Submission15%41%
Decision11%31%
Predicted output
Sig. strikes32 (1741)act 3
Takedowns0.4 (0.01.6)act 0
Combined totals~65 sig strikes~1.6 takedownsmkt —
How it ends
mkt —
R145%
R213%
R37%
Distance35%
Fighter props
Most sig. strikestie 1.7%
Ribas
52.0%-112
VanZant
+11246.4%
Most takedownstie 27.4%
Ribas
57.5%-381
VanZant
+38115.1%
Significant strikes — over/under
Ribas
Expected: 33.7
33.5
Over 33.5
43.0%
+133
Under 33.5
57.0%
-133
04385
VanZant
Expected: 31.7
31.5
Over 31.5
43.0%
+133
Under 31.5
57.0%
-133
04080
Takedowns — over/under
Ribas
Expected: 1.2
1
Over 1
44.1%
-145
Exactly 1
25.3%
push
Under 1
30.5%
+145
035
VanZant
Expected: 0.4
0.5
Over 0.5
31.8%
+214
Under 0.5
68.2%
-214
035

Odds are model-implied (no real prop market is priced for these). The “most” prices are draw-no-bet — a tie (for takedowns, usually 0–0) is a push, so each side is priced off its chance of winning given a result, while the % shown is the raw chance of landing strictly more. Drag a line in half-point steps: a half line (e.g. 2.5) is a clean over/under, while a whole number adds a third outcome — landing exactly on it, a push — so over, exact and under sum to 100%. On a whole number the over/under odds are draw-no-bet (priced off the decisive mass, since the push refunds), so the two sides stay mirror images rather than implying an arbitrage.

Expected fight time 8.2 min. Predicted-output ranges are percentiles of the model’s simulated fights: sig strikes the middle 50% (25th–75th); takedowns the wider 10th–90th, since they’re 0 in most fights so a narrow band would collapse to 0. Win-by-method = win probability × that fighter’s own method split: the model forecasts how the fight ends, and that forecast is divided between the corners by each fighter’s finishing record — UFC wins in full, earlier-career wins at half weight, as of fight night — reconciled so the fighters’ totals still equal their win probabilities and the methods still total the fight-level forecast above. “Equity” is each of those over that fighter’s win % — how they win given that they win — so a column adds to 100%, and it differs by corner. A fighter with no classifiable wins at any level leans on the fight-level split. “How it ends” is the model’s round-of-finish split. “Mkt” is the de-vigged market prop (consensus across books), shown for context, not as a betting signal; rounds & totals slots fill as that data lands. Percentages are apportioned by largest remainder, so each set adds to its total exactly and an individual figure can sit a point off its own rounding.

Model vs market
Final
ModelMarketGapLine
To win
Ribas63.7%84.2%−20.5-770
VanZant36.3%15.8%+20.5+500

Market % is the de-vigged (no-vig) consensus across the books that price both fighters; the line is the average across books with the min–max range in parentheses. Gap is the model minus the market in points (+ = the model rates that outcome above the market). Thin or one-sided markets are flagged or left blank rather than shown as a fabricated %. Shown for context, not as a bet — the closing line is the sharpest public price and the model trails it on average. For 5-round bouts the model splits its round-3+ finish mass into rounds 3–5 by the historical within-bucket rate, so the over-3.5 / 4.5 lines carry a model estimate.

Trait web
80.0Striking65.3
Ribas +14.7
76.8Grappling43.8
Ribas +33.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
RibasVanZant
Tale of the tape
Ratings (Elo)
1560
Pound-for-pound
1531
1513
Divisional
1506
1496
Striking offense
1501
1507
Striking defense
1508
1544
Grappling offense
1500
1547
Grappling defense
1483
Physical
26 yrs
Age
26 yrs
5'4"
Height
5'4"
66"
Reach
65"
Orthodox
Stance
Orthodox
Striking (UFC career)
4.84
Strikes landed / min
3.40
44%
Strike accuracy
52%
1.70
Strikes absorbed / min
2.63
74%
Strike defense
43%
Grappling (UFC career)
2.02
Takedowns / 15 min
1.31
50%
Takedown accuracy
33%
86%
Takedown defense
35%
1.6
Sub attempts / 15 min
1.0
Form & résumé
100%
UFC win rate
63%
+3
Win/loss streak
+1
100%
Last-5 win rate
40%
33%
Finish rate
80%
Recent opp. quality
119
Days since last fight
539
Recent form (last 5 UFC)
Amanda Ribas
  • WRanda MarkosU-DEC R3
    Close -3454mo before
  • WMackenzie DernU-DEC R3
    Close +1609mo before
  • WEmily WhitmireSUB R2
    Close +1551y before
Paige VanZant
  • WRachael OstovichSUB R2
    Close -1751y 6mo before
  • LJessica-Rose ClarkU-DEC R3
    Close -1202y 6mo before
  • LMichelle Waterson-GomezSUB R1
    Close -1103y 7mo before
  • WBec RawlingsKO/TKO R2
    Close -2103y 10mo before
  • LRose NamajunasSUB R5
    Close -1404y 7mo before
Ribas — win / loss by method
Record: 8-1-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
2 wins, 1 loss
W
25% of wins
L
100% of losses
Submission
3 wins, 0 losses
W
38% of wins
L
0% of losses
Decision
3 wins, 0 losses
W
38% of wins
L
0% of losses
UFC
3win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (33%)Submission() 0
2 (67%)Decision() 0
Non-UFC
5win1loss0draw0NC
WinsLosses
2 (40%)KO/TKO(100%) 1
2 (40%)Submission(0%) 0
1 (20%)Decision(0%) 0
VanZant — win / loss by method
Record: 8-4-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
2 wins, 0 losses
W
25% of wins
L
0% of losses
Submission
3 wins, 2 losses
W
38% of wins
L
50% of losses
Decision
3 wins, 2 losses
W
38% of wins
L
50% of losses
UFC
5win3loss0draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
2 (40%)Submission(67%) 2
1 (20%)Decision(33%) 1
Non-UFC
3win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
1 (33%)Submission(0%) 0
2 (67%)Decision(100%) 1

Profiles

Experience
Ribas
VanZant
3
UFC fights
8
37.2 min · 12.4 avg
Octagon time
91.8 min · 11.5 avg
11y 10m
Career length
14y 1m
UFC schedule strength

Opponents' records on fight night — toggle their full cross-promotional record vs UFC bouts only.

Ribas
VanZant
21W–9L · 70.0%
Overall
53W–25L · 67.9%
21W–9L · 70.0%
Wins
29W–15L · 65.9%
0W–0L
Losses
24W–10L · 70.6%
Non-UFC schedule strength
Ribas
VanZant
19W–9L · 67.9%
Overall
1W–0L · 100.0%
13W–8L · 61.9%
Wins
0W–0L
6W–1L · 85.7%
Losses
1W–0L · 100.0%
Distance striking
Ribas
VanZant
6.26
Landed / min
5.29
37.8%
Accuracy
35.5%
76.6%
Defense
51.5%
0.00
Knockdowns / 15 min
0.16
54.6%
Time at distance
21.8%
Grappling & control
Ribas
VanZant
2.02
Takedowns / 15 min
1.31
50.0%
Takedown accuracy
33.3%
85.7%
Takedown defense
35.5%
1.61
Sub attempts / 15 min
0.98
84.1%
Control share
51.0%
Strike target map
Ribas
  • Head63%(113)div 61%
  • Body24%(43)div 21%
  • Legs13%(24)div 18%
VanZant
  • Head63%(196)div 61%
  • Body25%(79)div 21%
  • Legs12%(37)div 18%

Where each fighter lands significant strikes (career). “div” = the weight-class average.

Amanda Ribas
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.

Paige VanZant
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.