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UFC 258: Usman vs. Burns
Ricky Simon
Ricky Simon
17-3 · USA
VS
Brian Kelleher
Brian Kelleher
22-11 · USA
February 13, 2021 · Las Vegas, Nevada, USA
Featherweight · 3 rounds
145.5lb
Weigh-in
145.5lb
Ricky Simon def. Brian Kelleher by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Simon9/283/603:16
Kelleher4/230/000:03
R2
Simon22/492/201:27
Kelleher12/340/000:00
R3
Simon14/211/103:31
Kelleher3/160/000:09
Total
Simon45/986/908:14
Kelleher19/730/000:12

Scorecards

Simon vs Kelleher

RdRon McCarthySal D'AmatoTony WeeksCommunity
R110-910-910-910-8.9
R210-910-910-910-9
R310-910-910-910-9
Total30-2730-2730-2730-26.9

Media (17 cards) · avg 3026.9 · 17 Simon · 0 Kelleher

Official cards + public consensus via MMA Decisions. Per round: Simon-Kelleher.

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
SimonWin probabilityKelleher
79.4%20.6%
KO / TKO
31%
Submission
28%
Decision
41%
Expected fight time: 9.1 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 Simon, blue toward Kelleher. Tap a bar for why.

Predicted outcomes
Simon79%
Wins by
Model
Equity
Mkt
KO / TKO23%29%10%
Submission20%25%11%
Decision36%46%43%
Predicted output
Sig. strikes44 (1860)act 45
Takedowns1.8 (0.04.8)act 6
Kelleher21%
Wins by
Model
Equity
Mkt
KO / TKO8%37%10%
Submission8%39%12%
Decision5%24%14%
Predicted output
Sig. strikes31 (1342)act 19
Takedowns0.2 (0.01.1)act 0
Combined totals~76 sig strikes~2.0 takedownsmkt —
How it ends
mkt —
R134%
R220%
R35%
Distance41%
Fighter props
Most sig. strikestie 1.2%
Simon
60.6%-159
Kelleher
+15938.2%
Most takedownstie 22.3%
Simon
69.1%-806
Kelleher
+8068.6%
Significant strikes — over/under
Simon
Expected: 44.5
44.5
Over 44.5
39.8%
+152
Under 44.5
60.2%
-152
056112
Kelleher
Expected: 31.3
31.5
Over 31.5
39.5%
+153
Under 31.5
60.5%
-153
04079
Takedowns — over/under
Simon
Expected: 1.8
2
Over 2
36.2%
+126
Exactly 2
18.0%
push
Under 2
45.8%
-126
036
Kelleher
Expected: 0.2
0
Over 0
21.2%
Exactly 0
78.8%
push
Under 0
0.0%
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 9.1 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
Simon79.4%68.2%+11.2-250
Kelleher20.6%31.8%−11.2+200
By method
Simon by KO/TKO24.4%9.7%+14.7+700
Simon by submission22.4%11.1%+11.3+600
Simon by decision32.7%43.3%−10.6-125
Kelleher by KO/TKO6.3%9.7%−3.4+700
Kelleher by submission5.8%12.0%−6.2+550
Kelleher by decision8.5%14.2%−5.7+450
Total rounds (over)
Over 1.5 rds66.4%76.6%−10.2-450
Over 2.5 rds46.0%67.9%−21.9-275
Goes the distance
Fight goes to decision41.1%64.6%−23.5-225

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
63.1Striking54.8
Simon +8.3
72.0Grappling47.4
Simon +24.6
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
SimonKelleher
Tale of the tape
Ratings (Elo)
1585
Pound-for-pound
1555
1538
Divisional
1530
1492
Striking offense
1513
1495
Striking defense
1485
1531
Grappling offense
1504
1512
Grappling defense
1489
Physical
28 yrs
Age
34 yrs
5'6"
Height
5'6"
69"
Reach
66"
Orthodox
Stance
Switch
Striking (UFC career)
3.07
Strikes landed / min
4.45
41%
Strike accuracy
41%
3.59
Strikes absorbed / min
5.97
63%
Strike defense
53%
Grappling (UFC career)
5.84
Takedowns / 15 min
1.20
48%
Takedown accuracy
25%
75%
Takedown defense
72%
0.4
Sub attempts / 15 min
0.8
Form & résumé
71%
UFC win rate
60%
+2
Win/loss streak
+1
60%
Last-5 win rate
60%
40%
Finish rate
83%
Recent opp. quality
24
Days since last fight
161
Recent form (last 5 UFC)
Ricky Simon
  • WGaetano PirrelloSUB R2
    Close -45024d before
  • WRay BorgS-DEC R3
    Close -1709mo before
  • LRob FontU-DEC R3
    Close +1251y 2mo before
  • LUrijah FaberKO/TKO R1
    Close -3551y 7mo before
  • WRani YahyaU-DEC R3
    Close -1052y before
Brian Kelleher
  • WRay RodriguezSUB R1
    Close -3805mo before
  • LCody StamannU-DEC R3
    Close +2108mo before
  • WHunter AzureKO/TKO R2
    Close +1709mo before
  • WOde OsbourneSUB R1
    Close +1251y 1mo before
  • LMontel JacksonSUB R1
    opp missedClose +1552y 2mo before
Simon — win / loss by method
Record: 17-3-0

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
5 wins, 1 loss
W
29% of wins
L
33% of losses
Submission
3 wins, 1 loss
W
18% of wins
L
33% of losses
Decision
9 wins, 1 loss
W
53% of wins
L
33% of losses
UFC
5win2loss0draw0NC
WinsLosses
0 (0%)KO/TKO(50%) 1
2 (40%)Submission(0%) 0
3 (60%)Decision(50%) 1
Non-UFC
12win1loss0draw0NC
WinsLosses
5 (42%)KO/TKO(0%) 0
1 (8%)Submission(100%) 1
6 (50%)Decision(0%) 0
Kelleher — win / loss by method
Record: 22-11-0

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
8 wins, 1 loss
W
36% of wins
L
9% of losses
Submission
10 wins, 6 losses
W
45% of wins
L
55% of losses
Decision
4 wins, 4 losses
W
18% of wins
L
36% of losses
UFC
6win4loss0draw0NC
WinsLosses
2 (33%)KO/TKO(25%) 1
3 (50%)Submission(50%) 2
1 (17%)Decision(25%) 1
Non-UFC
16win7loss0draw0NC
WinsLosses
6 (38%)KO/TKO(0%) 0
7 (44%)Submission(57%) 4
3 (19%)Decision(43%) 3

Profiles

Experience
Simon
Kelleher
7
UFC fights
10
84.8 min · 12.1 avg
Octagon time
75.3 min · 7.5 avg
12y 6m
Career length
15y 5m
UFC schedule strength

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

Simon
Kelleher
117W–35L · 77.0%
Overall
175W–38L · 82.2%
67W–21L · 76.1%
Wins
110W–24L · 82.1%
50W–14L · 78.1%
Losses
65W–14L · 82.3%
Non-UFC schedule strength
Simon
Kelleher
91W–66L · 58.0%
Overall
153W–76L · 66.8%
78W–63L · 55.3%
Wins
101W–63L · 61.6%
13W–3L · 81.3%
Losses
52W–13L · 80.0%
Distance striking
Simon
Kelleher
3.91
Landed / min
5.54
35.1%
Accuracy
37.3%
64.5%
Defense
55.9%
0.35
Knockdowns / 15 min
0.40
57.6%
Time at distance
66.9%
Grappling & control
Simon
Kelleher
5.84
Takedowns / 15 min
1.20
47.8%
Takedown accuracy
25.0%
75.0%
Takedown defense
72.2%
0.35
Sub attempts / 15 min
0.80
86.6%
Control share
63.5%
Strike target map
Simon
  • Head68%(177)div 64%
  • Body20%(51)div 20%
  • Legs12%(32)div 16%
Kelleher
  • Head66%(222)div 64%
  • Body14%(48)div 20%
  • Legs19%(65)div 16%

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

Ricky Simon
CloseSSTDKDCtrl

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

Brian Kelleher
CloseSSTDKDCtrl

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