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UFC 21: Return of the Champions
Andre Roberts
Andre Roberts
9-1 · USA
VS
Ron Waterman
Ron Waterman
4-0 · USA
July 16, 1999 · Cedar Rapids, Iowa, USA
Heavyweight · 2 rounds
350.0lb
Weigh-in
264.0lb
Andre Roberts def. Ron Waterman by KO/TKO (Punch), R1 2:51
Performance
Round by round
SSTDKDCtrl
R1 · 2:51
Roberts10/200/010:28
Waterman22/480/000:28
Total
Roberts10/200/010:28
Waterman22/480/000:28

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
RobertsWin probabilityWaterman
22.8%77.2%
KO / TKO
38%
Submission
18%
Decision
44%
Expected fight time: 9.8 min
What drives the pick

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

Predicted outcomes
Roberts23%
Wins by
Model
Equity
Mkt
KO / TKO7%32%
Submission5%23%
Decision11%45%
Predicted output
Sig. strikes56 (3273)act 10
Takedowns0.2 (0.01.3)act 0
Waterman77%
Wins by
Model
Equity
Mkt
KO / TKO30%39%
Submission13%17%
Decision34%44%
Predicted output
Sig. strikes72 (4193)act 22
Takedowns1.0 (0.12.7)act 0
Combined totals~128 sig strikes~1.3 takedownsmkt —
How it ends
mkt —
R130%
R217%
R39%
Distance44%
Fighter props
Most sig. strikestie 0.8%
Roberts
38.3%+159
Waterman
-15960.9%
Most takedownstie 23.3%
Roberts
9.1%+747
Waterman
-74767.7%
Significant strikes — over/under
Roberts
Expected: 56.2
56
Over 56
42.2%
+134
Exactly 56
1.2%
push
Under 56
56.6%
-134
071141
Waterman
Expected: 71.7
71.5
Over 71.5
42.7%
+134
Under 71.5
57.3%
-134
090180
Takedowns — over/under
Roberts
Expected: 0.2
0
Over 0
48.9%
Exactly 0
51.1%
push
Under 0
0.0%
035
Waterman
Expected: 1.0
1
Over 1
45.4%
-1247
Exactly 1
50.9%
push
Under 1
3.6%
+1247
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 9.8 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

No market on record for this bout.

Trait web
52.2Striking100.0
Waterman +47.8
0.0Grappling50.0
Waterman +50.0
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
RobertsWaterman
Tale of the tape
Ratings (Elo)
1509
Pound-for-pound
1524
1509
Divisional
1524
1498
Striking offense
1485
1493
Striking defense
1500
1500
Grappling offense
1562
1500
Grappling defense
1561
Physical
34 yrs
Age
33 yrs
6'2"
Height
6'2"
Reach
Orthodox
Stance
Orthodox
Striking (UFC career)
2.79
Strikes landed / min
12.86
67%
Strike accuracy
75%
11.16
Strikes absorbed / min
0.00
43%
Strike defense
100%
Grappling (UFC career)
0.00
Takedowns / 15 min
32.14
Takedown accuracy
100%
Takedown defense
0.0
Sub attempts / 15 min
0.0
Form & résumé
50%
UFC win rate
100%
-1
Win/loss streak
+1
50%
Last-5 win rate
100%
0%
Finish rate
100%
Recent opp. quality
133
Days since last fight
70
Recent form (last 5 UFC)
Andre Roberts
  • LGary GoodridgeKO/TKO R1
    4mo before
  • WHarry MoskowitzU-DEC R2
    1y 2mo before
Ron Waterman
  • WChris CondoKO/TKO R1
    2mo before
Roberts — win / loss by method
Record: 9-1-0

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
5 wins, 1 loss
W
56% of wins
L
100% of losses
Submission
2 wins, 0 losses
W
22% of wins
L
0% of losses
Decision
1 win, 0 losses
W
11% of wins
L
0% of losses
DQ / other
1 win, 0 losses
W
11% of wins
L
0% of losses
UFC
1win1loss0draw0NC
WinsLosses
0 (0%)KO/TKO(100%) 1
0 (0%)Submission(0%) 0
1 (100%)Decision(0%) 0
Non-UFC
8win0loss0draw0NC
WinsLosses
5 (63%)KO/TKO() 0
2 (25%)Submission() 0
0 (0%)Decision() 0
1 (13%)DQ / other() 0
Waterman — win / loss by method
Record: 4-0-0

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
4 wins, 0 losses
W
100% of wins
L
Submission
0 wins, 0 losses
W
0% of wins
L
Decision
0 wins, 0 losses
W
0% of wins
L
UFC
1win0loss0draw0NC
WinsLosses
1 (100%)KO/TKO() 0
0 (0%)Submission() 0
0 (0%)Decision() 0
Non-UFC
3win0loss0draw0NC
WinsLosses
3 (100%)KO/TKO() 0
0 (0%)Submission() 0
0 (0%)Decision() 0

Profiles

Experience
Roberts
Waterman
1
UFC fights
1
0.7 min · 0.7 avg
Octagon time
0.5 min · 0.5 avg
29y 6m
Career length
27y 6m
UFC schedule strength

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

Roberts
Waterman
10W–11L · 47.6%
Overall
0W–0L
2W–4L · 33.3%
Wins
0W–0L
8W–7L · 53.3%
Losses
0W–0L
Non-UFC schedule strength
Roberts
Waterman
6W–9L · 40.0%
Overall
0W–0L
6W–9L · 40.0%
Wins
0W–0L
0W–0L
Losses
0W–0L
Distance striking
Roberts
Waterman
3.39
Landed / min
0.00
66.7%
Accuracy
45.5%
Defense
100.0%
0.00
Knockdowns / 15 min
0.00
82.4%
Time at distance
100.0%
Grappling & control
Roberts
Waterman
0.00
Takedowns / 15 min
32.14
Takedown accuracy
100.0%
Takedown defense
0.00
Sub attempts / 15 min
0.00
Control share
Strike target map
Roberts
  • Head100%(2)div 75%
  • Body0%(0)div 11%
  • Legs0%(0)div 15%
Waterman
  • Head100%(6)div 75%
  • Body0%(0)div 11%
  • Legs0%(0)div 15%

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

Andre Roberts
CloseSSTDKDCtrl
  • U-DEC · R2
    Roberts—/——/—
    Moskowitz—/——/—

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

Ron Waterman
CloseSSTDKDCtrl

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