| Marc vs Heihachi | 5–10 | 33.33% |
| Marc vs Jin | 3–8 | 27.27% |
| Marc vs Reina | 1–6 | 14.29% |
| Marc vs Kazuya | 1–6 | 14.29% |
| Marc vs Lili | 3–4 | 42.86% |
| Marc vs Hwoarang | 3–3 | 50.00% |
| Marc vs Steve | 4–2 | 66.67% |
| Marc vs Nina | 1–5 | 16.67% |
| Marc vs Victor | 1–5 | 16.67% |
| Marc vs Xiaoyu | 2–4 | 33.33% |
| Marc vs Devil Jin | 2–3 | 40.00% |
| Marc vs Bryan | 2–2 | 50.00% |
| Marc vs Law | 0–3 | 0.00% |
| Marc vs King | 0–2 | 0.00% |
| Marc vs Jun | 0–2 | 0.00% |
| Marc vs Panda | 0–2 | 0.00% |
| Marc vs Asuka | 0–1 | 0.00% |
| Marc vs Paul | 1–0 | 100.00% |
| Marc vs Yoshimitsu | 1–0 | 100.00% |
| Marc vs Alisa | 1–0 | 100.00% |
| Marc vs Zafina | 0–1 | 0.00% |
| Marc vs Azucena | 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.