| Marlonwen vs Kazuya | 116–120 | 49.15% |
| Marlonwen vs Heihachi | 94–127 | 42.53% |
| Marlonwen vs Bryan | 85–116 | 42.29% |
| Marlonwen vs King | 130–62 | 67.71% |
| Marlonwen vs Law | 84–82 | 50.60% |
| Marlonwen vs Jin | 63–103 | 37.95% |
| Marlonwen vs Reina | 71–86 | 45.22% |
| Marlonwen vs Hwoarang | 53–71 | 42.74% |
| Marlonwen vs Steve | 62–62 | 50.00% |
| Marlonwen vs Azucena | 57–56 | 50.44% |
| Marlonwen vs Lili | 45–62 | 42.06% |
| Marlonwen vs Lars | 54–52 | 50.94% |
| Marlonwen vs Yoshimitsu | 48–56 | 46.15% |
| Marlonwen vs Dragunov | 56–45 | 55.45% |
| Marlonwen vs Asuka | 48–46 | 51.06% |
| Marlonwen vs Eddy | 39–53 | 42.39% |
| Marlonwen vs Paul | 32–49 | 39.51% |
| Marlonwen vs Lee | 21–54 | 28.00% |
| Marlonwen vs Jun | 25–49 | 33.78% |
| Marlonwen vs Lidia | 33–39 | 45.83% |
| Marlonwen vs Raven | 32–34 | 48.48% |
| Marlonwen vs Devil Jin | 21–43 | 32.81% |
| Marlonwen vs Leo | 28–36 | 43.75% |
| Marlonwen vs Victor | 36–28 | 56.25% |
| Marlonwen vs Nina | 29–33 | 46.77% |
| Marlonwen vs Clive | 30–32 | 48.39% |
| Marlonwen vs Feng | 30–31 | 49.18% |
| Marlonwen vs Leroy | 39–14 | 73.58% |
| Marlonwen vs Xiaoyu | 23–29 | 44.23% |
| Marlonwen vs Anna | 24–22 | 52.17% |
| Marlonwen vs Alisa | 23–19 | 54.76% |
| Marlonwen vs Jack-8 | 21–20 | 51.22% |
| Marlonwen vs Kuma | 19–21 | 47.50% |
| Marlonwen vs Claudio | 13–19 | 40.62% |
| Marlonwen vs Miary Zo | 14–18 | 43.75% |
| Marlonwen vs Panda | 13–14 | 48.15% |
| Marlonwen vs Zafina | 8–13 | 38.10% |
| Marlonwen vs Armor King | 12–9 | 57.14% |
| Marlonwen vs Shaheen | 8–6 | 57.14% |
| Marlonwen vs Fahkumram | 3–9 | 25.00% |
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.