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UFC Fight Night: Brunson vs. Holland
Macy Chiasson
Macy Chiasson
6-1 · USA
VS
Marion Reneau
Marion Reneau
9-6-1 · USA
March 20, 2021 · Las Vegas, Nevada, USA
Bantamweight · 3 rounds
136.0lb
Weigh-in
136.0lb
Macy Chiasson def. Marion Reneau by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Chiasson15/560/000:01
Reneau13/280/100:27
R2
Chiasson21/410/002:40
Reneau9/161/100:26
R3
Chiasson15/411/101:07
Reneau8/191/201:22
Total
Chiasson51/1381/103:48
Reneau30/632/402:15

Scorecards

Chiasson vs Reneau

RdMichael BellRick WinterSal D'AmatoCommunity
R19-109-109-109.1-9.9
R210-910-910-910-8.9
R310-910-910-99.9-9.2
Total29-2829-2829-2829-28

Media (17 cards) · avg 29.127.9 · 17 Chiasson · 0 Reneau

Official cards + public consensus via MMA Decisions. Per round: Chiasson-Reneau.

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
ChiassonWin probabilityReneau
82.9%17.1%
KO / TKO
32%
Submission
14%
Decision
54%
Expected fight time: 10.9 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 Chiasson, blue toward Reneau. Tap a bar for why.

Predicted outcomes
Chiasson83%
Wins by
Model
Equity
Mkt
KO / TKO26%31%12%
Submission11%14%8%
Decision46%55%39%
Predicted output
Sig. strikes46 (1962)act 51
Takedowns1.3 (0.04.0)act 1
Reneau17%
Wins by
Model
Equity
Mkt
KO / TKO6%37%9%
Submission3%17%13%
Decision8%46%18%
Predicted output
Sig. strikes29 (1239)act 30
Takedowns0.4 (0.01.9)act 2
Combined totals~75 sig strikes~1.7 takedownsmkt —
How it ends
mkt —
R121%
R217%
R38%
Distance54%
Fighter props
Most sig. strikestie 1.2%
Chiasson
63.9%-183
Reneau
+18334.9%
Most takedownstie 31.3%
Chiasson
50.7%-281
Reneau
+28118.0%
Significant strikes — over/under
Chiasson
Expected: 45.9
46
Over 46
39.1%
+153
Exactly 46
1.1%
push
Under 46
59.8%
-153
058115
Reneau
Expected: 29.1
29
Over 29
39.0%
+152
Exactly 29
1.7%
push
Under 29
59.3%
-152
03773
Takedowns — over/under
Chiasson
Expected: 1.3
1.5
Over 1.5
41.6%
+141
Under 1.5
58.4%
-141
035
Reneau
Expected: 0.4
0.5
Over 0.5
32.1%
+212
Under 0.5
67.9%
-212
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 10.9 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
Chiasson82.9%66.9%+16.0-236
Reneau17.1%33.1%−16.0+188
By method
Chiasson by KO/TKO26.6%12.4%+14.2+550
Chiasson by submission11.8%8.1%+3.7+900
Chiasson by decision44.5%39.3%+5.2+105
Reneau by KO/TKO5.5%8.9%−3.4+800
Reneau by submission2.4%13.4%−11.0+500
Reneau by decision9.1%17.9%−8.8+350
Total rounds (over)
Over 1.5 rds78.9%75.0%+3.9-400
Over 2.5 rds61.7%64.5%−2.8-225
Goes the distance
Fight goes to decision53.6%62.5%−8.9-200

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
72.2Striking64.8
Chiasson +7.4
40.0Grappling53.6
Reneau +13.7
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
ChiassonReneau
Tale of the tape
Ratings (Elo)
1549
Pound-for-pound
1505
1535
Divisional
1506
1504
Striking offense
1495
1503
Striking defense
1514
1513
Grappling offense
1490
1495
Grappling defense
1510
Physical
29 yrs
Age
43 yrs
5'11"
Height
5'6"
72"
Reach
68"
Orthodox
Stance
Orthodox
Striking (UFC career)
4.40
Strikes landed / min
3.42
54%
Strike accuracy
41%
2.22
Strikes absorbed / min
3.37
44%
Strike defense
61%
Grappling (UFC career)
0.97
Takedowns / 15 min
0.52
17%
Takedown accuracy
71%
70%
Takedown defense
51%
0.6
Sub attempts / 15 min
0.9
Form & résumé
80%
UFC win rate
50%
+1
Win/loss streak
-3
80%
Last-5 win rate
40%
75%
Finish rate
80%
Recent opp. quality
399
Days since last fight
273
Recent form (last 5 UFC)
Macy Chiasson
  • WShanna YoungU-DEC R3
    Close -8001y 1mo before
  • LLina LansbergU-DEC R3
    Close -4301y 6mo before
  • WSarah MorasKO/TKO R2
    Close -7001y 11mo before
  • WGina MazanyKO/TKO R1
    Close -5252y 1mo before
  • WPannie KianzadSUB R2
    Close -1052y 4mo before
Marion Reneau
  • LRaquel PenningtonU-DEC R3
    Close +1409mo before
  • LYana SantosU-DEC R3
    Close +1852y before
  • LCat ZinganoU-DEC R3
    Close -1102y 8mo before
  • WSara McMannSUB R2
    Close +1653y 1mo before
  • WTalita BernardoKO/TKO R3
    Close -3203y 7mo before
Chiasson — win / loss by method
Record: 6-1-0

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
2 wins, 0 losses
W
33% of wins
L
0% of losses
Submission
2 wins, 0 losses
W
33% of wins
L
0% of losses
Decision
2 wins, 1 loss
W
33% of wins
L
100% of losses
UFC
4win1loss0draw0NC
WinsLosses
2 (50%)KO/TKO(0%) 0
1 (25%)Submission(0%) 0
1 (25%)Decision(100%) 1
Non-UFC
2win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (50%)Submission() 0
1 (50%)Decision() 0
Reneau — win / loss by method
Record: 9-6-1

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
56% of wins
L
0% of losses
Submission
3 wins, 0 losses
W
33% of wins
L
0% of losses
Decision
1 win, 6 losses
W
11% of wins
L
100% of losses
UFC
5win5loss1draw0NC
WinsLosses
2 (40%)KO/TKO(0%) 0
2 (40%)Submission(0%) 0
1 (20%)Decision(100%) 5
Non-UFC
4win1loss0draw0NC
WinsLosses
3 (75%)KO/TKO(0%) 0
1 (25%)Submission(0%) 0
0 (0%)Decision(100%) 1

Profiles

Experience
Chiasson
Reneau
5
UFC fights
11
46.4 min · 9.3 avg
Octagon time
143.5 min · 13.0 avg
8y 9m
Career length
16y 5m
UFC schedule strength

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

Chiasson
Reneau
37W–16L · 69.8%
Overall
85W–29L · 74.6%
28W–12L · 70.0%
Wins
44W–13L · 77.2%
9W–4L · 69.2%
Losses
41W–16L · 71.9%
Non-UFC schedule strength
Chiasson
Reneau
1W–0L · 100.0%
Overall
1W–1L · 50.0%
1W–0L · 100.0%
Wins
1W–1L · 50.0%
0W–0L
Losses
0W–0L
Distance striking
Chiasson
Reneau
7.30
Landed / min
3.99
37.0%
Accuracy
34.6%
56.4%
Defense
66.6%
0.65
Knockdowns / 15 min
0.00
15.1%
Time at distance
55.7%
Grappling & control
Chiasson
Reneau
0.97
Takedowns / 15 min
0.52
16.7%
Takedown accuracy
71.4%
70.0%
Takedown defense
51.3%
0.65
Sub attempts / 15 min
0.94
66.1%
Control share
32.1%
Strike target map
Chiasson
  • Head57%(116)div 64%
  • Body42%(85)div 20%
  • Legs1%(3)div 16%
Reneau
  • Head68%(336)div 64%
  • Body20%(98)div 20%
  • Legs12%(57)div 16%

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

Macy Chiasson
CloseSSTDKDCtrl

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

Marion Reneau
CloseSSTDKDCtrl

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