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UFC Fight Night: Song vs. Gutierrez
VS
Anthony Smith
Anthony Smith
37-18 · USA
December 9, 2023 · Las Vegas, Nevada, USA
Light Heavyweight · 3 rounds
204.0lb
Weigh-in
205.5lb
Khalil Rountree Jr. def. Anthony Smith by KO/TKO (Punch), R3 0:56
Performance
Round by round
SSTDKDCtrl
R1
Rountree Jr.20/400/000:40
Smith19/300/000:00
R2
Rountree Jr.23/580/000:14
Smith23/480/200:11
R3 · 0:56
Rountree Jr.10/160/010:04
Smith5/60/000:00
Total
Rountree Jr.53/1140/010:58
Smith47/840/200:11

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
Rountree Jr.Win probabilitySmith
59.0%41.0%
KO / TKO
48%
Submission
8%
Decision
44%
Expected fight time: 10.2 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 Rountree Jr., blue toward Smith. Tap a bar for why.

Predicted outcomes
Rountree Jr.59%
Wins by
Model
Equity
Mkt
KO / TKO28%47%46%
Submission1%2%4%
Decision30%51%12%
Predicted output
Sig. strikes54 (2373)act 53
Takedowns0.3 (0.01.1)act 0
Smith41%
Wins by
Model
Equity
Mkt
KO / TKO21%50%13%
Submission7%17%13%
Decision13%33%11%
Predicted output
Sig. strikes51 (2170)act 47
Takedowns0.2 (0.00.6)act 0
Combined totals~106 sig strikes~0.4 takedownsmkt —
How it ends
mkt —
R122%
R224%
R310%
Distance44%
Fighter props
Most sig. strikestie 0.9%
Rountree Jr.
51.0%-106
Smith
+10648.1%
Most takedownstie 70.4%
Rountree Jr.
17.3%-140
Smith
+14012.3%
Significant strikes — over/under
Rountree Jr.
Expected: 54.1
54
Over 54
39.4%
+151
Exactly 54
0.9%
push
Under 54
59.7%
-151
068136
Smith
Expected: 51.4
51.5
Over 51.5
39.7%
+152
Under 51.5
60.3%
-152
065129
Takedowns — over/under
Rountree Jr.
Expected: 0.3
0.5
Over 0.5
19.0%
+427
Under 0.5
81.0%
-427
035
Smith
Expected: 0.2
0
Over 0
14.1%
Exactly 0
85.9%
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 10.2 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
Rountree Jr.59.0%64.0%−5.0-202
Smith41.0%36.0%+5.0+165
By method
Rountree Jr. by KO/TKO28.6%46.4%−17.8-125
Rountree Jr. by submission4.7%4.1%+0.6+1915
Rountree Jr. by decision25.7%11.7%+14.0+611
Smith by KO/TKO19.9%13.2%+6.7+532
Smith by submission3.3%13.2%−9.9+533
Smith by decision17.9%11.3%+6.6+641
Total rounds (over)
Over 1.5 rds77.6%46.8%+30.8+100
Over 2.5 rds53.8%31.1%+22.7+200
Goes the distance
Fight goes to decision43.6%24.9%+18.7+276

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
57.6Striking56.6
Rountree Jr. +0.9
17.4Grappling35.3
Smith +18.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
Rountree Jr.Smith
Tale of the tape
Ratings (Elo)
1566
Pound-for-pound
1596
1564
Divisional
1583
1524
Striking offense
1537
1497
Striking defense
1485
1467
Grappling offense
1466
1533
Grappling defense
1505
Physical
33 yrs
Age
35 yrs
6'1"
Height
6'4"
76"
Reach
76"
Southpaw
Stance
Orthodox
Striking (UFC career)
3.73
Strikes landed / min
3.21
39%
Strike accuracy
50%
4.16
Strikes absorbed / min
4.59
51%
Strike defense
46%
Grappling (UFC career)
0.00
Takedowns / 15 min
0.55
Takedown accuracy
29%
56%
Takedown defense
49%
0.1
Sub attempts / 15 min
0.5
Form & résumé
57%
UFC win rate
60%
+4
Win/loss streak
+1
80%
Last-5 win rate
60%
75%
Finish rate
83%
Recent opp. quality
119
Days since last fight
105
Recent form (last 5 UFC)
Khalil Rountree Jr.
  • WChris DaukausKO/TKO R1
    Close -1794mo before
  • WDustin JacobyS-DEC R3
    Close +1481y 1mo before
  • WKarl RobersonKO/TKO R2
    Close +1221y 9mo before
  • WModestas BukauskasKO/TKO R2
    Close +1332y 3mo before
  • LMarcin PrachnioU-DEC R3
    Close -3652y 10mo before
Anthony Smith
  • WRyan SpannS-DEC R3
    Close +1083mo before
  • LJohnny WalkerU-DEC R3
    Close -1017mo before
  • LMagomed AnkalaevKO/TKO R2
    Close +4371y 4mo before
  • WRyan SpannSUB R1
    Close -1582y 3mo before
  • WJimmy CruteKO/TKO R1
    Close +1872y 8mo before
Rountree Jr. — win / loss by method
Record: 12-5-0, 1 NC

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, 2 losses
W
67% of wins
L
40% of losses
Submission
0 wins, 1 loss
W
0% of wins
L
20% of losses
Decision
4 wins, 2 losses
W
33% of wins
L
40% of losses
UFC
8win5loss0draw1NC
WinsLosses
6 (75%)KO/TKO(40%) 2
0 (0%)Submission(20%) 1
2 (25%)Decision(40%) 2
Non-UFC
4win0loss0draw0NC
WinsLosses
2 (50%)KO/TKO() 0
0 (0%)Submission() 0
2 (50%)Decision() 0
Smith — win / loss by method
Record: 37-18-0

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
20 wins, 10 losses
W
54% of wins
L
56% of losses
Submission
14 wins, 4 losses
W
38% of wins
L
22% of losses
Decision
3 wins, 4 losses
W
8% of wins
L
22% of losses
UFC
12win8loss0draw0NC
WinsLosses
6 (50%)KO/TKO(38%) 3
4 (33%)Submission(13%) 1
2 (17%)Decision(50%) 4
Non-UFC
25win10loss0draw0NC
WinsLosses
14 (56%)KO/TKO(70%) 7
10 (40%)Submission(30%) 3
1 (4%)Decision(0%) 0

Profiles

Experience
Rountree Jr.
Smith
14
UFC fights
20
106.6 min · 7.6 avg
Octagon time
217.8 min · 10.9 avg
12y 2m
Career length
18y 5m
UFC schedule strength

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

Rountree Jr.
Smith
128W–40L · 76.2%
Overall
345W–86L · 80.0%
76W–26L · 74.5%
Wins
210W–57L · 78.7%
52W–14L · 78.8%
Losses
135W–29L · 82.3%
Non-UFC schedule strength
Rountree Jr.
Smith
12W–3L · 80.0%
Overall
336W–164L · 67.2%
12W–3L · 80.0%
Wins
251W–133L · 65.4%
0W–0L
Losses
85W–31L · 73.3%
Distance striking
Rountree Jr.
Smith
4.10
Landed / min
4.99
36.2%
Accuracy
47.1%
53.0%
Defense
54.2%
1.69
Knockdowns / 15 min
0.48
78.3%
Time at distance
55.4%
Grappling & control
Rountree Jr.
Smith
0.00
Takedowns / 15 min
0.55
Takedown accuracy
28.6%
56.3%
Takedown defense
48.8%
0.14
Sub attempts / 15 min
0.48
11.1%
Control share
18.0%
Strike target map
Rountree Jr.
  • Head59%(234)div 64%
  • Body20%(78)div 19%
  • Legs22%(86)div 17%
Smith
  • Head63%(444)div 64%
  • Body19%(130)div 19%
  • Legs18%(126)div 17%

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

Khalil Rountree Jr.
CloseSSTDKDCtrl

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

Anthony Smith
CloseSSTDKDCtrl

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