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Kill The Body

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Maria Semertzoglou vs Mikaela Mayer — record, stats and common opponents compared

Maria Semertzoglou

🇺🇸WELTERWEIGHT

Mikaela Mayer

Maria Semertzoglou (0-4 across 4 tracked bouts) and Mikaela Mayer (22-3) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 1 common opponent.

Semertzoglou

Tracked record

0–4

counted from 4 bouts Kill The Body has ingested

Mayer

22

Wins5 KO · 23%

3

Losses

0

Draws25 tracked bouts

Heads up: at least one of these records is a tracked record — the wins and losses Kill The Body has ingested so far, not an independently verified career total. Treat the comparison as a read on the bouts we hold, not a settled ledger.

Head to Head

Mayer leads 1–0

Maria Semertzoglou and Mikaela Mayer have met 1 time; Mayer leads 1–0.

Maria Semertzoglou and Mikaela Mayer have met 1 time; Mayer leads 1–0.
Met2018Mar 10Series
Maria SemertzoglouFighter ALLost0–1W–L
Mikaela MayerFighter BWWon1–0W–L
ResultKOR11Meeting

The Numbers

Semertzoglou 0 · Mayer 6 of 6 measurable rows
SemertzoglouMayer
Record†
0-422-3 (edge)
Win %0–100%
0%
88% (edge)
Wins by knockoutmax 5
0
5 (edge)
KO ratenot comparable
—22.73%
Stoppage rate (tracked wins)‡not comparable
—23%
Times stopped‡max 1
1
0 (edge)
Title reignsmax 7
0
7 (edge)
Bouts per year§max 2.8
1.8
2.8 (edge)
Bouts trackedcoveragemax 25
4
25

† One or both records are tracked, not career-verified. · ‡ Counted from bouts Kill The Body has ingested, not a career total. · § Across each fighter's tracked career span. · Bars are scaled per row — percentages on 0–100, counts against the larger of the two. Every figure is also printed as text.

Tale of the Tape

Heightnot held
Maria Semertzoglou: No height on file
Mikaela Mayer: 5′9″
Reachnot held
Maria Semertzoglou: No reach on file
Mikaela Mayer: 67″
Agenot held
Maria Semertzoglou: No date of birth
Mikaela Mayer: 36
Stance
Maria Semertzoglou: Not recorded
Mikaela Mayer: Orthodox

Maria Semertzoglou left, Mikaela Mayer right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Maria Semertzoglou0 wins · from 4 tracked bouts

Maria Semertzoglou: no tracked wins in the 4 bouts Kill The Body has ingested.

No tracked wins for Semertzoglou yet.

Mikaela Mayer22 wins · from 25 tracked bouts

Mikaela Mayer: 22 tracked wins — 5 by KO/TKO (23%) and 17 on the cards (77%). Counted from 25 bouts Kill The Body has ingested.

5 by KO/TKO 23%17 on the cards 77%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Maria Semertzoglou 4, Mikaela Mayer 25 — not from a career-complete method table.

Common Opponents

1 shared

1 shared · Mayer better on 1

Semertzoglou

Opponent

Mayer

  • Maria Semertzoglou

    Loss, UD

    2016

    HamadoucheMayer better

    Mikaela Mayer

    Win, UD

    2021

Both sides are set at the same size on purpose. Kill The Body does not score a second-round knockout above a split decision — the edge counts losses first and wins as the tiebreak, and the rest is yours to argue. Shared opponents are matched on fighter identity, not on name, so two different fighters with the same name never merge into one row.

Current Form

Oldest left · newest right

Maria Semertzoglou last boxed on Mar 10, 2018 — 3,156 days ago. Semertzoglou had lost four straight.LLLL

Duchemin Dec 2015Hamadouche Apr 2016Thanderz Oct 2017Mayer Mar 20181.8 tracked bouts per year

Mikaela Mayer had won three in a row before losing a decision to Chantelle Cameron. Mayer last boxed on Aug 29, 2026 — 62 days ago.LWWWL

Jonas Jan 2024Ryan Sep 2024Ryan Mar 2025Spencer Oct 2025Cameron Aug 20262.8 tracked bouts per year

Common Questions

With the rows behind them
Have Maria Semertzoglou and Mikaela Mayer ever fought each other?
Yes. Maria Semertzoglou and Mikaela Mayer met once on March 10, 2018, and Mikaela Mayer won by KO in round 1.
The meeting

LMar 10, 2018 · Mayer · KO R1

Head to Head ↓
Who has the better record, Semertzoglou or Mayer?
Maria Semertzoglou is 0-4 across the 4 bouts Kill The Body has tracked and Mikaela Mayer is 22-3. Mikaela Mayer has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Semertzoglou0–40%

Mayer22–388%

The Numbers ↓
Who has more knockouts, Semertzoglou or Mayer?
Maria Semertzoglou has 0 knockout wins and Mikaela Mayer has 5. Mikaela Mayer has more.
Knockout wins · KO rate

Semertzoglou0

Mayer522.7%

The Numbers ↓
Do Semertzoglou and Mayer have any common opponents?
Maria Semertzoglou and Mikaela Mayer share 1 common opponent: Maïva Hamadouche. Mikaela Mayer fared better against 1 of them.
Shared opponent

Maïva HamadoucheLW

Common Opponents ↓
How much fight data does Kill The Body have on Semertzoglou and Mayer?
This comparison is drawn from 4 bouts tracked for Maria Semertzoglou and 25 bouts tracked for Mikaela Mayer. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Semertzoglou4bouts

Mayer25bouts

How They Win ↓

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