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UFC 228: Woodley vs. Till
Darren Stewart
Darren Stewart
8-3 · GBR
VS
Charles Byrd
Charles Byrd
10-4 · USA
September 8, 2018 · Dallas, Texas, USA
Middleweight · 3 rounds
185.5lb
Weigh-in
185.0lb
Darren Stewart def. Charles Byrd by KO/TKO (Elbow), R2 2:17
Performance
Round by round
SSTDKDCtrl
R1
Stewart10/310/000:50
Byrd23/380/301:15
R2 · 2:17
Stewart14/340/010:10
Byrd15/250/000:27
Total
Stewart24/650/011:00
Byrd38/630/301:42

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
StewartWin probabilityByrd
73.5%26.5%
KO / TKO
33%
Submission
29%
Decision
39%
Expected fight time: 9.1 min
What drives the pick

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

Predicted outcomes
Stewart73%
Wins by
Model
Equity
Mkt
KO / TKO27%37%
Submission17%23%
Decision29%40%
Predicted output
Sig. strikes38 (2149)act 24
Takedowns0.9 (0.02.9)act 0
Byrd27%
Wins by
Model
Equity
Mkt
KO / TKO6%21%
Submission12%45%
Decision9%34%
Predicted output
Sig. strikes26 (1434)act 38
Takedowns0.9 (0.02.9)act 0
Combined totals~64 sig strikes~1.8 takedownsmkt —
How it ends
mkt —
R133%
R222%
R36%
Distance39%
Fighter props
Most sig. strikestie 1.6%
Stewart
66.3%-206
Byrd
+20632.1%
Most takedownstie 33.4%
Stewart
32.9%+103
Byrd
-10333.8%
Significant strikes — over/under
Stewart
Expected: 38.0
38
Over 38
41.6%
+136
Exactly 38
1.7%
push
Under 38
56.7%
-136
04895
Byrd
Expected: 25.8
26
Over 26
40.8%
+139
Exactly 26
2.5%
push
Under 26
56.7%
-139
03365
Takedowns — over/under
Stewart
Expected: 0.9
1
Over 1
30.4%
+176
Exactly 1
16.1%
push
Under 1
53.5%
-176
035
Byrd
Expected: 0.9
1
Over 1
30.8%
+170
Exactly 1
17.0%
push
Under 1
52.2%
-170
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
Stewart73.5%38.8%+34.7+150
Byrd26.5%61.2%−34.7-170

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
67.4Striking85.7
Byrd +18.2
49.1Grappling68.9
Byrd +19.8
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
StewartByrd
Tale of the tape
Ratings (Elo)
1498
Pound-for-pound
1523
1511
Divisional
1523
1500
Striking offense
1500
1511
Striking defense
1500
1505
Grappling offense
1507
1491
Grappling defense
1507
Physical
27 yrs
Age
34 yrs
6'0"
Height
5'10"
74"
Reach
73"
Orthodox
Stance
Orthodox
Striking (UFC career)
3.20
Strikes landed / min
2.77
44%
Strike accuracy
79%
2.65
Strikes absorbed / min
0.00
59%
Strike defense
100%
Grappling (UFC career)
2.59
Takedowns / 15 min
3.78
43%
Takedown accuracy
100%
60%
Takedown defense
0.0
Sub attempts / 15 min
3.8
Form & résumé
20%
UFC win rate
100%
+1
Win/loss streak
+1
20%
Last-5 win rate
100%
100%
Finish rate
100%
Recent opp. quality
104
Days since last fight
175
Recent form (last 5 UFC)
Darren Stewart
  • WEric SpicelyKO/TKO R2
    Close +1403mo before
  • LJulian MarquezSUB R2
    Close +2809mo before
  • LKarl RobersonSUB R1
    Close +18510mo before
  • LFrancimar BarrosoU-DEC R3
    Close -2101y 6mo before
Charles Byrd
  • WJohn PhillipsSUB R1
    Close -1056mo before
Stewart — win / loss by method
Record: 8-3-0, 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
6 wins, 0 losses
W
75% of wins
L
0% of losses
Submission
0 wins, 2 losses
W
0% of wins
L
67% of losses
Decision
2 wins, 1 loss
W
25% of wins
L
33% of losses
UFC
1win3loss0draw1NC
WinsLosses
1 (100%)KO/TKO(0%) 0
0 (0%)Submission(67%) 2
0 (0%)Decision(33%) 1
Non-UFC
7win0loss0draw0NC
WinsLosses
5 (71%)KO/TKO() 0
0 (0%)Submission() 0
2 (29%)Decision() 0
Byrd — win / loss by method
Record: 10-4-0

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
3 wins, 0 losses
W
30% of wins
L
0% of losses
Submission
5 wins, 2 losses
W
50% of wins
L
50% of losses
Decision
2 wins, 1 loss
W
20% of wins
L
25% of losses
DQ / other
0 wins, 1 loss
W
0% of wins
L
25% of losses
UFC
1win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (100%)Submission() 0
0 (0%)Decision() 0
Non-UFC
9win4loss0draw0NC
WinsLosses
3 (33%)KO/TKO(0%) 0
4 (44%)Submission(50%) 2
2 (22%)Decision(25%) 1
0 (0%)DQ / other(25%) 1

Profiles

Experience
Stewart
Byrd
5
UFC fights
1
34.7 min · 6.9 avg
Octagon time
4.0 min · 4.0 avg
12y 2m
Career length
17y 3m
UFC schedule strength

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

Stewart
Byrd
39W–9L · 81.3%
Overall
21W–6L · 77.8%
10W–3L · 76.9%
Wins
21W–6L · 77.8%
29W–6L · 82.9%
Losses
0W–0L
Non-UFC schedule strength
Stewart
Byrd
34W–31L · 52.3%
Overall
87W–48L · 64.4%
34W–31L · 52.3%
Wins
61W–33L · 64.9%
0W–0L
Losses
26W–15L · 63.4%
Distance striking
Stewart
Byrd
4.19
Landed / min
0.00
34.3%
Accuracy
0.0%
71.0%
Defense
100.0%
0.43
Knockdowns / 15 min
0.00
41.9%
Time at distance
1.7%
Grappling & control
Stewart
Byrd
2.59
Takedowns / 15 min
3.78
42.9%
Takedown accuracy
100.0%
60.0%
Takedown defense
0.00
Sub attempts / 15 min
3.78
61.8%
Control share
100.0%
Strike target map
Stewart
  • Head68%(76)div 63%
  • Body17%(19)div 19%
  • Legs14%(16)div 18%
Byrd
  • Head100%(11)div 63%
  • Body0%(0)div 19%
  • Legs0%(0)div 18%

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

Darren Stewart
CloseSSTDKDCtrl

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

Charles Byrd
CloseSSTDKDCtrl

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