| MarsDog vs Heihachi | 43–31 | 58.11% |
| MarsDog vs Jin | 28–25 | 52.83% |
| MarsDog vs King | 27–19 | 58.70% |
| MarsDog vs Law | 28–17 | 62.22% |
| MarsDog vs Kazuya | 24–17 | 58.54% |
| MarsDog vs Yoshimitsu | 22–15 | 59.46% |
| MarsDog vs Hwoarang | 23–10 | 69.70% |
| MarsDog vs Paul | 16–16 | 50.00% |
| MarsDog vs Steve | 15–17 | 46.88% |
| MarsDog vs Bryan | 19–12 | 61.29% |
| MarsDog vs Reina | 13–14 | 48.15% |
| MarsDog vs Lili | 10–16 | 38.46% |
| MarsDog vs Dragunov | 17–9 | 65.38% |
| MarsDog vs Jun | 11–10 | 52.38% |
| MarsDog vs Asuka | 14–6 | 70.00% |
| MarsDog vs Victor | 10–10 | 50.00% |
| MarsDog vs Xiaoyu | 8–10 | 44.44% |
| MarsDog vs Azucena | 6–11 | 35.29% |
| MarsDog vs Leroy | 11–4 | 73.33% |
| MarsDog vs Alisa | 8–6 | 57.14% |
| MarsDog vs Nina | 8–6 | 57.14% |
| MarsDog vs Eddy | 7–6 | 53.85% |
| MarsDog vs Clive | 4–8 | 33.33% |
| MarsDog vs Jack-8 | 6–5 | 54.55% |
| MarsDog vs Lee | 6–5 | 54.55% |
| MarsDog vs Kuma | 8–1 | 88.89% |
| MarsDog vs Devil Jin | 7–1 | 87.50% |
| MarsDog vs Feng | 3–5 | 37.50% |
| MarsDog vs Leo | 5–3 | 62.50% |
| MarsDog vs Lars | 6–1 | 85.71% |
| MarsDog vs Claudio | 2–4 | 33.33% |
| MarsDog vs Lidia | 4–2 | 66.67% |
| MarsDog vs Anna | 2–2 | 50.00% |
| MarsDog vs Shaheen | 2–1 | 66.67% |
| MarsDog vs Raven | 1–2 | 33.33% |
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.