| Mashimellow vs Kazuya | 45–27 | 62.50% |
| Mashimellow vs Dragunov | 23–29 | 44.23% |
| Mashimellow vs King | 30–17 | 63.83% |
| Mashimellow vs Armor King | 30–17 | 63.83% |
| Mashimellow vs Bryan | 26–20 | 56.52% |
| Mashimellow vs Paul | 33–9 | 78.57% |
| Mashimellow vs Jin | 30–10 | 75.00% |
| Mashimellow vs Hwoarang | 19–16 | 54.29% |
| Mashimellow vs Reina | 18–17 | 51.43% |
| Mashimellow vs Asuka | 15–13 | 53.57% |
| Mashimellow vs Lars | 15–13 | 53.57% |
| Mashimellow vs Lili | 12–14 | 46.15% |
| Mashimellow vs Steve | 13–11 | 54.17% |
| Mashimellow vs Feng | 8–16 | 33.33% |
| Mashimellow vs Heihachi | 16–7 | 69.57% |
| Mashimellow vs Jun | 14–7 | 66.67% |
| Mashimellow vs Yoshimitsu | 12–8 | 60.00% |
| Mashimellow vs Devil Jin | 16–4 | 80.00% |
| Mashimellow vs Azucena | 12–7 | 63.16% |
| Mashimellow vs Jack-8 | 12–6 | 66.67% |
| Mashimellow vs Claudio | 10–7 | 58.82% |
| Mashimellow vs Nina | 13–4 | 76.47% |
| Mashimellow vs Victor | 9–8 | 52.94% |
| Mashimellow vs Law | 11–5 | 68.75% |
| Mashimellow vs Fahkumram | 8–7 | 53.33% |
| Mashimellow vs Shaheen | 7–6 | 53.85% |
| Mashimellow vs Lee | 7–6 | 53.85% |
| Mashimellow vs Xiaoyu | 8–3 | 72.73% |
| Mashimellow vs Eddy | 6–5 | 54.55% |
| Mashimellow vs Leo | 5–3 | 62.50% |
| Mashimellow vs Kuma | 4–3 | 57.14% |
| Mashimellow vs Lidia | 5–2 | 71.43% |
| Mashimellow vs Clive | 6–1 | 85.71% |
| Mashimellow vs Alisa | 3–3 | 50.00% |
| Mashimellow vs Anna | 2–4 | 33.33% |
| Mashimellow vs Zafina | 2–3 | 40.00% |
| Mashimellow vs Leroy | 2–3 | 40.00% |
| Mashimellow vs Raven | 2–3 | 40.00% |
| Mashimellow vs Panda | 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.