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UFC 258: Usman vs. Burns
Alexa Grasso
Alexa Grasso
12-3 · MEX
VS
Maycee Barber
Maycee Barber
8-1 · USA
February 13, 2021 · Las Vegas, Nevada, USA
Flyweight · 3 rounds
125.5lb
Weigh-in
126.0lb
Alexa Grasso def. Maycee Barber by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Grasso13/210/002:05
Barber10/480/101:02
R2
Grasso12/360/001:29
Barber8/441/100:55
R3
Grasso13/240/001:36
Barber22/602/301:17
Total
Grasso38/810/005:10
Barber40/1523/503:14

Scorecards

Grasso vs Barber

RdEric ColónJunichiro KamijoSal D'AmatoCommunity
R110-910-910-99.8-9.2
R210-910-910-910-9
R39-109-109-109-10
Total29-2829-2829-2828.8-28.2

Media (22 cards) · avg 2928 · 22 Grasso · 0 Barber

Official cards + public consensus via MMA Decisions. Per round: Grasso-Barber.

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
GrassoWin probabilityBarber
38.6%61.4%
KO / TKO
22%
Submission
16%
Decision
62%
Expected fight time: 11.5 min
Retrospective pick: the walk-forward model's call at the time of the fight — persisted out-of-sample, with no hindsight about the result.
What drives the pick

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

Predicted outcomes
Grasso39%
Wins by
Model
Equity
Mkt
KO / TKO5%14%8%
Submission3%8%6%
Decision31%78%41%
Predicted output
Sig. strikes49 (2066)act 38
Takedowns0.5 (0.02.3)act 0
Barber61%
Wins by
Model
Equity
Mkt
KO / TKO17%28%15%
Submission12%20%10%
Decision32%52%20%
Predicted output
Sig. strikes50 (2168)act 40
Takedowns0.8 (0.02.9)act 3
Combined totals~99 sig strikes~1.4 takedownsmkt —
How it ends
mkt —
R119%
R213%
R36%
Distance62%
Fighter props
Most sig. strikestie 1.0%
Grasso
48.1%+106
Barber
-10650.9%
Most takedownstie 36.3%
Grasso
25.7%+148
Barber
-14838.0%
Significant strikes — over/under
Grasso
Expected: 48.6
48.5
Over 48.5
39.9%
+151
Under 48.5
60.1%
-151
061122
Barber
Expected: 50.4
50.5
Over 50.5
39.6%
+152
Under 50.5
60.4%
-152
063126
Takedowns — over/under
Grasso
Expected: 0.5
0.5
Over 0.5
38.4%
+160
Under 0.5
61.6%
-160
035
Barber
Expected: 0.8
1
Over 1
30.4%
+167
Exactly 1
19.0%
push
Under 1
50.6%
-167
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 11.5 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
Grasso38.6%50.0%−11.4-110
Barber61.4%50.0%+11.4-110
By method
Grasso by KO/TKO8.7%8.0%+0.7+900
Grasso by submission6.0%6.2%−0.2+1200
Grasso by decision23.9%41.1%−17.2-105
Barber by KO/TKO13.8%14.6%−0.8+450
Barber by submission9.6%10.0%−0.4+700
Barber by decision38.0%20.1%+17.9+300
Total rounds (over)
Over 1.5 rds81.5%76.6%+4.9-450
Over 2.5 rds68.1%68.7%−0.6-275
Goes the distance
Fight goes to decision62.0%66.3%−4.3-250

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
72.1Striking78.3
Barber +6.2
43.5Grappling35.5
Grasso +8.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
GrassoBarber
Tale of the tape
Ratings (Elo)
1546
Pound-for-pound
1548
1549
Divisional
1533
1492
Striking offense
1519
1515
Striking defense
1500
1484
Grappling offense
1499
1511
Grappling defense
1510
Physical
27 yrs
Age
22 yrs
5'5"
Height
5'5"
66"
Reach
65"
Orthodox
Stance
Switch
Striking (UFC career)
5.35
Strikes landed / min
5.23
43%
Strike accuracy
57%
3.76
Strikes absorbed / min
2.93
63%
Strike defense
57%
Grappling (UFC career)
0.32
Takedowns / 15 min
0.45
40%
Takedown accuracy
20%
64%
Takedown defense
67%
0.5
Sub attempts / 15 min
0.5
Form & résumé
57%
UFC win rate
75%
+1
Win/loss streak
-1
60%
Last-5 win rate
75%
0%
Finish rate
100%
Recent opp. quality
168
Days since last fight
392
Recent form (last 5 UFC)
Alexa Grasso
  • WJi Yeon KimU-DEC R3
    Close -3156mo before
  • LCarla EsparzaM-DEC R3
    Close -1451y 5mo before
  • WKarolina KowalkiewiczU-DEC R3
    Close -1251y 8mo before
  • LTatiana SuarezSUB R1
    Close +4252y 9mo before
  • WRanda MarkosS-DEC R3
    Close -2203y 6mo before
Maycee Barber
  • LRoxanne ModafferiU-DEC R3
    Close -8301y 1mo before
  • WGillian RobertsonKO/TKO R1
    Close -1701y 4mo before
  • WJJ AldrichKO/TKO R2
    Close -2751y 11mo before
  • WHannah CifersKO/TKO R2
    Close -4702y 3mo before
Grasso — win / loss by method
Record: 12-3-0

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
4 wins, 0 losses
W
33% of wins
L
0% of losses
Submission
0 wins, 1 loss
W
0% of wins
L
33% of losses
Decision
8 wins, 2 losses
W
67% of wins
L
67% of losses
UFC
4win3loss0draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
0 (0%)Submission(33%) 1
4 (100%)Decision(67%) 2
Non-UFC
8win0loss0draw0NC
WinsLosses
4 (50%)KO/TKO() 0
0 (0%)Submission() 0
4 (50%)Decision() 0
Barber — 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
5 wins, 0 losses
W
63% of wins
L
0% of losses
Submission
2 wins, 0 losses
W
25% of wins
L
0% of losses
Decision
1 win, 1 loss
W
13% of wins
L
100% of losses
UFC
3win1loss0draw0NC
WinsLosses
3 (100%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
0 (0%)Decision(100%) 1
Non-UFC
5win0loss0draw0NC
WinsLosses
2 (40%)KO/TKO() 0
2 (40%)Submission() 0
1 (20%)Decision() 0

Profiles

Experience
Grasso
Barber
7
UFC fights
4
92.7 min · 13.2 avg
Octagon time
33.1 min · 8.3 avg
13y 7m
Career length
9y 1m
UFC schedule strength

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

Grasso
Barber
65W–27L · 70.7%
Overall
45W–23L · 66.2%
35W–15L · 70.0%
Wins
22W–7L · 75.9%
30W–12L · 71.4%
Losses
23W–16L · 59.0%
Non-UFC schedule strength
Grasso
Barber
21W–9L · 70.0%
Overall
9W–3L · 75.0%
21W–9L · 70.0%
Wins
9W–3L · 75.0%
0W–0L
Losses
0W–0L
Distance striking
Grasso
Barber
6.50
Landed / min
7.11
38.9%
Accuracy
43.7%
67.6%
Defense
66.5%
0.00
Knockdowns / 15 min
0.00
66.1%
Time at distance
35.3%
Grappling & control
Grasso
Barber
0.32
Takedowns / 15 min
0.45
40.0%
Takedown accuracy
20.0%
63.6%
Takedown defense
66.7%
0.49
Sub attempts / 15 min
0.45
32.7%
Control share
33.5%
Strike target map
Grasso
  • Head61%(303)div 61%
  • Body20%(100)div 21%
  • Legs19%(93)div 18%
Barber
  • Head73%(126)div 61%
  • Body15%(26)div 21%
  • Legs12%(21)div 18%

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

Alexa Grasso
CloseSSTDKDCtrl

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

Maycee Barber
CloseSSTDKDCtrl

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