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UFC - Ultimate Japan
Frank Shamrock
Frank Shamrock
14-7-1 · USA
VS
Kevin Jackson
Kevin Jackson
3-0 · USA
December 21, 1997 · Yokohama, Kanagawa, Japan
Lightweight · 1 rounds
193.0lb
Weigh-in
199.0lb
Frank Shamrock def. Kevin Jackson by SUB (Armbar), R1 0:16
Performance
Round by round
SSTDKDCtrl
R1 · 0:16
Shamrock1/10/00
Jackson2/31/10
Total
Shamrock1/10/00
Jackson2/31/10

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
ShamrockWin probabilityJackson
60.7%39.3%
KO / TKO
35%
Submission
34%
Decision
32%
Expected fight time: 8.3 min
What drives the pick

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

Predicted outcomes
Shamrock61%
Wins by
Model
Equity
Mkt
KO / TKO16%27%
Submission23%37%
Decision22%36%
Predicted output
Sig. strikes45 (2558)act 1
Takedowns0.5 (0.01.8)act 0
Jackson39%
Wins by
Model
Equity
Mkt
KO / TKO18%46%
Submission11%29%
Decision10%25%
Predicted output
Sig. strikes36 (2046)act 2
Takedowns0.8 (0.12.3)act 1
Combined totals~80 sig strikes~1.3 takedownsmkt —
How it ends
mkt —
R140%
R220%
R38%
Distance32%
Fighter props
Most sig. strikestie 1.3%
Shamrock
59.6%-153
Jackson
+15339.1%
Most takedownstie 37.7%
Shamrock
18.8%+231
Jackson
-23143.5%
Significant strikes — over/under
Shamrock
Expected: 44.5
44.5
Over 44.5
42.6%
+135
Under 44.5
57.4%
-135
056112
Jackson
Expected: 35.6
35.5
Over 35.5
42.7%
+134
Under 35.5
57.3%
-134
04589
Takedowns — over/under
Shamrock
Expected: 0.5
0.5
Over 0.5
79.1%
-378
Under 0.5
20.9%
+378
035
Jackson
Expected: 0.8
1
Over 1
38.0%
-912
Exactly 1
57.8%
push
Under 1
4.2%
+912
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 8.3 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
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
ShamrockJackson
Tale of the tape
Ratings (Elo)
1514
Pound-for-pound
1533
1514
Divisional
1533
Striking offense
Striking defense
1500
Grappling offense
1560
1500
Grappling defense
1563
Physical
25 yrs
Age
33 yrs
5'10"
Height
5'10"
Reach
Orthodox
Stance
Switch
Striking (UFC career)
Strikes landed / min
2.29
Strike accuracy
50%
Strikes absorbed / min
0.46
Strike defense
80%
Grappling (UFC career)
Takedowns / 15 min
13.74
Takedown accuracy
100%
Takedown defense
Sub attempts / 15 min
6.9
Form & résumé
UFC win rate
100%
Win/loss streak
+2
Last-5 win rate
100%
Finish rate
100%
Recent opp. quality
Days since last fight
147
Recent form (last 5 UFC)
Frank Shamrock
No prior UFC fights.
Kevin Jackson
  • WTony FryklundSUB R1
    5mo before
  • WTodd ButlerKO/TKO R1
    5mo before
Shamrock — win / loss by method
Record: 14-7-1

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
0 wins, 2 losses
W
0% of wins
L
29% of losses
Submission
8 wins, 2 losses
W
57% of wins
L
29% of losses
Decision
4 wins, 3 losses
W
29% of wins
L
43% of losses
DQ / other
2 wins, 0 losses
W
14% of wins
L
0% of losses
UFC
0win0loss0draw0NC
WinsLosses
0 ()KO/TKO() 0
0 ()Submission() 0
0 ()Decision() 0
Non-UFC
14win7loss1draw0NC
WinsLosses
0 (0%)KO/TKO(29%) 2
8 (57%)Submission(29%) 2
4 (29%)Decision(43%) 3
2 (14%)DQ / other(0%) 0
Jackson — win / loss by method
Record: 3-0-0

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
1 win, 0 losses
W
33% of wins
L
Submission
2 wins, 0 losses
W
67% of wins
L
Decision
0 wins, 0 losses
W
0% of wins
L
UFC
2win0loss0draw0NC
WinsLosses
1 (50%)KO/TKO() 0
1 (50%)Submission() 0
0 (0%)Decision() 0
Non-UFC
1win0loss0draw0NC
WinsLosses
0 (0%)KO/TKO() 0
1 (100%)Submission() 0
0 (0%)Decision() 0

Profiles

Experience
Shamrock
Jackson
0
UFC fights
2
Octagon time
2.2 min · 1.1 avg
Career length
29y 4m
UFC schedule strength

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

Shamrock
Jackson
Overall
0W–1L · 0.0%
Wins
0W–1L · 0.0%
Losses
0W–0L
Non-UFC schedule strength
Shamrock
Jackson
188W–92L · 67.1%
Overall
3W–0L · 100.0%
125W–73L · 63.1%
Wins
3W–0L · 100.0%
63W–19L · 76.8%
Losses
0W–0L
Distance striking
Shamrock
Jackson
Landed / min
0.00
Accuracy
0.0%
Defense
80.0%
Knockdowns / 15 min
0.00
Time at distance
90.5%
Grappling & control
Shamrock
Jackson
Takedowns / 15 min
13.74
Takedown accuracy
100.0%
Takedown defense
Sub attempts / 15 min
6.87
Control share
Strike target map
Shamrock
  • Head0%(0)div 86%
  • Body0%(0)div 7%
  • Legs0%(0)div 7%
  • No strike data on record.
Jackson
  • Head100%(5)div 86%
  • Body0%(0)div 7%
  • Legs0%(0)div 7%

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

Frank Shamrock

No UFC fights on record.

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

Kevin Jackson
CloseSSTDKDCtrl

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