| Marduck20 vs King | 34–55 | 38.20% |
| Marduck20 vs Kazuya | 25–35 | 41.67% |
| Marduck20 vs Jin | 22–33 | 40.00% |
| Marduck20 vs Steve | 21–34 | 38.18% |
| Marduck20 vs Eddy | 18–29 | 38.30% |
| Marduck20 vs Law | 12–31 | 27.91% |
| Marduck20 vs Reina | 15–27 | 35.71% |
| Marduck20 vs Heihachi | 13–29 | 30.95% |
| Marduck20 vs Azucena | 16–24 | 40.00% |
| Marduck20 vs Lidia | 11–20 | 35.48% |
| Marduck20 vs Asuka | 12–18 | 40.00% |
| Marduck20 vs Bryan | 6–23 | 20.69% |
| Marduck20 vs Lili | 8–20 | 28.57% |
| Marduck20 vs Yoshimitsu | 15–11 | 57.69% |
| Marduck20 vs Hwoarang | 11–15 | 42.31% |
| Marduck20 vs Dragunov | 3–21 | 12.50% |
| Marduck20 vs Jun | 7–14 | 33.33% |
| Marduck20 vs Paul | 6–14 | 30.00% |
| Marduck20 vs Devil Jin | 7–9 | 43.75% |
| Marduck20 vs Lars | 9–7 | 56.25% |
| Marduck20 vs Lee | 2–14 | 12.50% |
| Marduck20 vs Anna | 7–9 | 43.75% |
| Marduck20 vs Armor King | 6–8 | 42.86% |
| Marduck20 vs Zafina | 3–9 | 25.00% |
| Marduck20 vs Nina | 2–9 | 18.18% |
| Marduck20 vs Alisa | 6–4 | 60.00% |
| Marduck20 vs Leroy | 5–4 | 55.56% |
| Marduck20 vs Victor | 4–5 | 44.44% |
| Marduck20 vs Miary Zo | 1–6 | 14.29% |
| Marduck20 vs Claudio | 4–2 | 66.67% |
| Marduck20 vs Shaheen | 1–4 | 20.00% |
| Marduck20 vs Panda | 4–1 | 80.00% |
| Marduck20 vs Xiaoyu | 2–2 | 50.00% |
| Marduck20 vs Raven | 0–4 | 0.00% |
| Marduck20 vs Jack-8 | 1–2 | 33.33% |
| Marduck20 vs Kuma | 2–1 | 66.67% |
| Marduck20 vs Clive | 1–2 | 33.33% |
| Marduck20 vs Feng | 2–0 | 100.00% |
| Marduck20 vs Leo | 0–1 | 0.00% |
| Marduck20 vs Fahkumram | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.