| Marcus_Mrek vs Kazuya | 37–29 | 56.06% |
| Marcus_Mrek vs Steve | 39–14 | 73.58% |
| Marcus_Mrek vs Paul | 33–16 | 67.35% |
| Marcus_Mrek vs Jin | 30–16 | 65.22% |
| Marcus_Mrek vs Reina | 32–14 | 69.57% |
| Marcus_Mrek vs Devil Jin | 25–18 | 58.14% |
| Marcus_Mrek vs Dragunov | 31–11 | 73.81% |
| Marcus_Mrek vs King | 19–19 | 50.00% |
| Marcus_Mrek vs Lee | 27–5 | 84.38% |
| Marcus_Mrek vs Heihachi | 18–13 | 58.06% |
| Marcus_Mrek vs Lidia | 17–7 | 70.83% |
| Marcus_Mrek vs Hwoarang | 10–12 | 45.45% |
| Marcus_Mrek vs Bryan | 11–10 | 52.38% |
| Marcus_Mrek vs Alisa | 9–12 | 42.86% |
| Marcus_Mrek vs Asuka | 9–11 | 45.00% |
| Marcus_Mrek vs Azucena | 12–8 | 60.00% |
| Marcus_Mrek vs Yoshimitsu | 9–10 | 47.37% |
| Marcus_Mrek vs Nina | 10–9 | 52.63% |
| Marcus_Mrek vs Xiaoyu | 12–5 | 70.59% |
| Marcus_Mrek vs Victor | 8–8 | 50.00% |
| Marcus_Mrek vs Jack-8 | 8–7 | 53.33% |
| Marcus_Mrek vs Lars | 10–4 | 71.43% |
| Marcus_Mrek vs Law | 6–7 | 46.15% |
| Marcus_Mrek vs Jun | 7–6 | 53.85% |
| Marcus_Mrek vs Claudio | 5–7 | 41.67% |
| Marcus_Mrek vs Leroy | 9–3 | 75.00% |
| Marcus_Mrek vs Feng | 4–5 | 44.44% |
| Marcus_Mrek vs Eddy | 5–4 | 55.56% |
| Marcus_Mrek vs Lili | 4–4 | 50.00% |
| Marcus_Mrek vs Shaheen | 7–1 | 87.50% |
| Marcus_Mrek vs Clive | 5–3 | 62.50% |
| Marcus_Mrek vs Leo | 0–7 | 0.00% |
| Marcus_Mrek vs Zafina | 5–2 | 71.43% |
| Marcus_Mrek vs Fahkumram | 6–1 | 85.71% |
| Marcus_Mrek vs Raven | 1–4 | 20.00% |
| Marcus_Mrek vs Kuma | 3–1 | 75.00% |
| Marcus_Mrek vs Anna | 2–2 | 50.00% |
| Marcus_Mrek vs Armor King | 2–1 | 66.67% |
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.