

Loss
Submission (R1 · 2:05)UFC on FX: Alves vs Kampmann
UFC round data: 3 bouts · through 2012-03-02

Heuristic scores · 0–100
3 UFC bouts · 92 division peers
Data through 2012-03-02
0 bouts reaching round 3
Fight IQ = 40% striking-accuracy percentile + 30% striking-defense percentile + 30% takedown-defense percentile within the division.
Requires 3 UFC bouts, 15 measured minutes, at least 10 division peers, 100 strike attempts, 100 opponent strike attempts and 10 opponent takedown attempts.
Cardio = 100 × the median late/early significant-strike attempt rate ratio, capped at 100. Compare rounds 3+ with rounds 1–2 within each bout. Requires 3 eligible bouts with at least 60 late-round seconds each. 100 means maintained or higher late pace.
Fight IQ summarizes accuracy and defense; cardio summarizes retained pace. Style, opponents and grappling affect both. These scores do not measure intelligence, physical fitness or win probability.
Formula v1
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Mackens Semerzier has a professional MMA record of 8-4-0 (wins-losses-draws).
Mackens Semerzier's UFC record is 1-1-0 (wins-losses-draws; 1 NC), and 7-3-0 in professional fights outside the UFC.
Mackens Semerzier does not have a fight currently scheduled.
Mackens Semerzier is 46 years old, born November 3, 1980.
Mackens Semerzier stands 175 cm (5'9") tall, with a 183 cm (72") reach.
Mackens Semerzier is from United States.
Mackens Semerzier is known as "Da Menace".
Mackens Semerzier last fought on March 2, 2012 at UFC on FX: Alves vs Kampmann, losing to Daniel Pineda by submission in round 1.
Mackens Semerzier (United States), a featherweight, went 8-4 (1 NC) as a pro and 1-1 (1 NC) in the UFC (7-3 outside it). He debuted at UFC Fight Night: Nogueira vs Davis on March 26, 2011; his only UFC win came by submission. Last fight: submission loss to Daniel Pineda, then 1-0 in the UFC, on March 2, 2012 (UFC on FX: Alves vs Kampmann).
Built from AgentMMA's UFC database (as of November 7, 2026); not AI-written.
Computed by AgentMMA from the round-by-round stats of 3 UFC bouts (17:17 of fight time).
| Stat | Semerzier | Division average | Percentile |
|---|---|---|---|
| Significant strikes landed per minute | 3.968 in 17:17 | 4.1 | 49 |
| Significant strike accuracy | 59.7%68 of 114 landed | 47.4% | 97 |
| Significant strikes absorbed per minute | 3.255 in 17:17 | 3.8 | 37 |
| Significant strike defense | 56.7%72 of 127 avoided | 54.3% | 62 |
| Takedowns per 15 minutes | 3.54 in 17:17 | 1.6 | 91 |
| Takedown accuracy | 40%4 of 10 landed | 38.4% | 55 |
| Takedown defense | —‡ | 61% | — |
| Submission attempts per 15 minutes | 0.91 in 17:17 | 0.5 | 82 |
| Knockdowns per 15 minutes | 00 in 17:17 | 0.5 | 10 |
| Control time | 44.7%7:43 of 17:17 | 18% | 95 |
| Average fight time | 5:463 bouts | 10:43 | 4 |
| Height | 175 cm69″ | 175 cm68.8″ | |
| Reach | 183 cm72″ | 180 cm70.9″ |
UFC record: 1-1 (1 NC)
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