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UFC Fight Night: Holloway vs. Rodriguez
Song Yadong
Song Yadong
17-6-1 · CHN
VS
Julio Arce
Julio Arce
17-4 · USA
November 13, 2021 · Las Vegas, Nevada, USA
Bantamweight · 3 rounds
135.5lb
Weigh-in
135.5lb
Song Yadong def. Julio Arce by KO/TKO (Punches), R2 1:35
Performance
Round by round
SSTDKDCtrl
R1
Yadong17/520/000:00
Arce5/460/000:00
R2 · 1:35
Yadong13/280/010:02
Arce8/320/000:00
Total
Yadong30/800/010:02
Arce13/780/000:00

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
YadongWin probabilityArce
66.0%34.0%
KO / TKO
28%
Submission
17%
Decision
55%
Expected fight time: 11.0 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 Yadong, blue toward Arce. Tap a bar for why.

Predicted outcomes
Yadong66%
Wins by
Model
Equity
Mkt
KO / TKO19%28%14%
Submission10%15%5%
Decision37%57%36%
Predicted output
Sig. strikes46 (1963)act 30
Takedowns0.7 (0.02.6)act 0
Arce34%
Wins by
Model
Equity
Mkt
KO / TKO9%28%12%
Submission7%20%11%
Decision18%52%22%
Predicted output
Sig. strikes36 (1549)act 13
Takedowns0.5 (0.02.2)act 0
Combined totals~82 sig strikes~1.2 takedownsmkt —
How it ends
mkt —
R123%
R213%
R39%
Distance55%
Fighter props
Most sig. strikestie 1.1%
Yadong
57.6%-140
Arce
+14041.3%
Most takedownstie 40.6%
Yadong
31.9%-116
Arce
+11627.6%
Significant strikes — over/under
Yadong
Expected: 46.2
46
Over 46
39.5%
+151
Exactly 46
1.1%
push
Under 46
59.5%
-151
058116
Arce
Expected: 35.8
36
Over 36
38.9%
+154
Exactly 36
1.3%
push
Under 36
59.8%
-154
04590
Takedowns — over/under
Yadong
Expected: 0.7
0.5
Over 0.5
41.5%
+141
Under 0.5
58.5%
-141
035
Arce
Expected: 0.5
0.5
Over 0.5
38.3%
+161
Under 0.5
61.7%
-161
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 11.0 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
Yadong66.0%56.6%+9.4-145
Arce34.0%43.4%−9.4+120
By method
Yadong by KO/TKO18.6%13.6%+5.0+506
Yadong by submission11.0%4.7%+6.3+1665
Yadong by decision36.4%36.1%+0.3+129
Arce by KO/TKO9.6%12.3%−2.7+573
Arce by submission5.7%11.4%−5.7+621
Arce by decision18.7%21.9%−3.2+276
Total rounds (over)
Over 1.5 rds77.2%74.1%+3.1-374
Over 2.5 rds64.3%64.5%−0.2-225
Goes the distance
Fight goes to decision55.1%62.0%−6.8-197

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
67.6Striking67.1
Yadong +0.6
42.9Grappling48.7
Arce +5.8
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
YadongArce
Tale of the tape
Ratings (Elo)
1587
Pound-for-pound
1555
1558
Divisional
1546
1516
Striking offense
1507
1518
Striking defense
1514
Grappling offense
Grappling defense
Physical
23 yrs
Age
32 yrs
5'8"
Height
5'7"
67"
Reach
70"
Orthodox
Stance
Southpaw
Striking (UFC career)
4.91
Strikes landed / min
3.92
43%
Strike accuracy
34%
3.90
Strikes absorbed / min
2.97
58%
Strike defense
67%
Grappling (UFC career)
0.49
Takedowns / 15 min
0.57
43%
Takedown accuracy
30%
61%
Takedown defense
93%
0.3
Sub attempts / 15 min
0.6
Form & résumé
86%
UFC win rate
67%
+1
Win/loss streak
+1
60%
Last-5 win rate
60%
50%
Finish rate
75%
Recent opp. quality
98
Days since last fight
112
Recent form (last 5 UFC)
Song Yadong
  • WCasey KenneyS-DEC R3
    Close +1033mo before
  • LKyler PhillipsU-DEC R3
    Close -1948mo before
  • WMarlon VeraU-DEC R3
    Close -2001y 6mo before
  • DCody StamannM-DEC R3
    !Close -2251y 11mo before
  • WAlejandro PerezKO/TKO R1
    Close -2252y 4mo before
Julio Arce
  • WAndre EwellKO/TKO R2
    Close -2074mo before
  • LHakeem DawoduS-DEC R3
    Close -1102y before
  • WJulian ErosaKO/TKO R3
    Close -8002y 6mo before
  • LSheymon MoraesS-DEC R3
    Close -2553y before
  • WDaniel TeymurSUB R3
    Close -1853y 5mo before
Yadong — win / loss by method
Record: 17-6-1, 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
6 wins, 1 loss
W
35% of wins
L
17% of losses
Submission
3 wins, 0 losses
W
18% of wins
L
0% of losses
Decision
8 wins, 4 losses
W
47% of wins
L
67% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
17% of losses
UFC
6win1loss1draw0NC
WinsLosses
2 (33%)KO/TKO(0%) 0
1 (17%)Submission(0%) 0
3 (50%)Decision(100%) 1
Non-UFC
11win5loss0draw1NC
WinsLosses
4 (36%)KO/TKO(20%) 1
2 (18%)Submission(0%) 0
5 (45%)Decision(60%) 3
0 (0%)DQ / other(20%) 1
Arce — win / loss by method
Record: 17-4-0

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
5 wins, 0 losses
W
29% of wins
L
0% of losses
Submission
5 wins, 1 loss
W
29% of wins
L
25% of losses
Decision
7 wins, 3 losses
W
41% of wins
L
75% of losses
UFC
4win2loss0draw0NC
WinsLosses
2 (50%)KO/TKO(0%) 0
1 (25%)Submission(0%) 0
1 (25%)Decision(100%) 2
Non-UFC
13win2loss0draw0NC
WinsLosses
3 (23%)KO/TKO(0%) 0
4 (31%)Submission(50%) 1
6 (46%)Decision(50%) 1

Profiles

Experience
Yadong
Arce
8
UFC fights
6
91.3 min · 11.4 avg
Octagon time
78.5 min · 13.1 avg
13y 2m
Career length
14y 0m
UFC schedule strength

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

Yadong
Arce
96W–29L · 76.8%
Overall
73W–19L · 79.3%
88W–28L · 75.9%
Wins
53W–16L · 76.8%
8W–1L · 88.9%
Losses
20W–3L · 87.0%
Non-UFC schedule strength
Yadong
Arce
83W–34L · 70.9%
Overall
96W–46L · 67.6%
42W–15L · 73.7%
Wins
68W–32L · 68.0%
41W–19L · 68.3%
Losses
28W–14L · 66.7%
Distance striking
Yadong
Arce
6.04
Landed / min
4.76
40.6%
Accuracy
32.9%
60.6%
Defense
70.0%
0.49
Knockdowns / 15 min
0.19
69.8%
Time at distance
74.2%
Grappling & control
Yadong
Arce
0.49
Takedowns / 15 min
0.57
42.9%
Takedown accuracy
30.0%
60.7%
Takedown defense
93.3%
0.33
Sub attempts / 15 min
0.57
50.5%
Control share
47.5%
Strike target map
Yadong
  • Head67%(298)div 63%
  • Body20%(90)div 21%
  • Legs13%(60)div 17%
Arce
  • Head72%(222)div 63%
  • Body23%(70)div 21%
  • Legs5%(16)div 17%

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

Song Yadong
CloseSSTDKDCtrl

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

Julio Arce
CloseSSTDKDCtrl

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