Combat Edge Intelligence

John Kolosci vs Joshua Sierra

Side-by-side comparison: records, physical profile, Combat Edge Elo, win methods, tracked UFC stats, and common opponents.

Compare any two fighters →

Tale of the tape

15-9-0Record4-3-0
LightweightDivisionWelterweight
5'11"Height5'11"
TBDReach69"
155 lbsWeight171 lbs
Gilbert Grappling· 1558 avg Elo · 4 ratedTeamMMA Masters

What's at stake

The ratings are close, so the Elo swings are near-symmetric — the winner and loser trade a similar number of points either way.

John KolosciNow 1517
If they win+16→ 1533
If they lose-16→ 1501
Joshua SierraNow 1523
If they win+24→ 1547
If they lose-24→ 1499

Projected for a decision result at current ratings. A finish (KO/TKO or submission) scales the swing up by roughly 20–25%.

Opponent quality

Average pre-fight Elo of each fighter's latest 10 counted pro MMA opponents. Higher means the recent schedule was stronger; later opponent results do not rewrite the score.

1540 · 10 fightsPre-fight Elo1508 · 7 fights

Tracked stat edges

Tracked UFC statistics may not cover a fighter's full career. Unavailable measurements are not zero.

0.21
Sig. strikes / min
Not available
20%
Strike accuracy
Not available
0.85
Strikes absorbed / minLower is better
Not available
50%
Strike defense
Not available
0
Takedown avg.
Not available
0%
Takedown accuracy
Not available
0%
Takedown defense
Not available
0
Submission avg.
Not available

Trajectory

John KolosciJoshua Sierra
1500155020102011201220132014201520162017201820192020202120222023202420252026

Win method breakdown

4 (27%)
KO/TKO
2 (50%)
4 (27%)
Submission
0 (0%)
7 (47%)
Decision
2 (50%)

Combat Edge model read

Joshua Sierra60%
John Kolosci 40%Elo baseline: 51%

The Combat Edge model makes Joshua Sierra a 60% favorite over John Kolosci in a hypothetical meeting — in line with the Elo baseline (51%).

Their Combat Edge Elo ratings are nearly level (1517 vs 1523), separated by just 6 points.

John Kolosci finishes 53% of wins inside the distance, Joshua Sierra 50%.

Model estimate for a hypothetical bout, generated from Combat Edge Elo, form, and career stats. Not a betting recommendation.