| Mashin vs Kazuya | 187–131 | 58.81% |
| Mashin vs Jin | 127–119 | 51.63% |
| Mashin vs King | 116–121 | 48.95% |
| Mashin vs Hwoarang | 117–108 | 52.00% |
| Mashin vs Bryan | 99–104 | 48.77% |
| Mashin vs Law | 105–82 | 56.15% |
| Mashin vs Reina | 86–88 | 49.43% |
| Mashin vs Heihachi | 85–64 | 57.05% |
| Mashin vs Yoshimitsu | 68–76 | 47.22% |
| Mashin vs Clive | 60–82–1 | 42.25% |
| Mashin vs Steve | 66–70 | 48.53% |
| Mashin vs Dragunov | 61–74 | 45.19% |
| Mashin vs Eddy | 66–61 | 51.97% |
| Mashin vs Paul | 63–56 | 52.94% |
| Mashin vs Lili | 61–54 | 53.04% |
| Mashin vs Lee | 53–60 | 46.90% |
| Mashin vs Devil Jin | 63–46 | 57.80% |
| Mashin vs Lars | 43–47 | 47.78% |
| Mashin vs Nina | 49–41 | 54.44% |
| Mashin vs Jun | 39–49 | 44.32% |
| Mashin vs Asuka | 36–50 | 41.86% |
| Mashin vs Alisa | 40–30 | 57.14% |
| Mashin vs Victor | 34–33 | 50.75% |
| Mashin vs Feng | 28–38 | 42.42% |
| Mashin vs Azucena | 32–34 | 48.48% |
| Mashin vs Lidia | 30–32 | 48.39% |
| Mashin vs Jack-8 | 29–32 | 47.54% |
| Mashin vs Xiaoyu | 31–23 | 57.41% |
| Mashin vs Leroy | 21–28 | 42.86% |
| Mashin vs Raven | 23–23 | 50.00% |
| Mashin vs Claudio | 15–18 | 45.45% |
| Mashin vs Kuma | 18–15 | 54.55% |
| Mashin vs Zafina | 14–18 | 43.75% |
| Mashin vs Armor King | 19–12 | 61.29% |
| Mashin vs Leo | 10–19 | 34.48% |
| Mashin vs Fahkumram | 9–14 | 39.13% |
| Mashin vs Shaheen | 8–5 | 61.54% |
| Mashin vs Miary Zo | 5–7 | 41.67% |
| Mashin vs Anna | 3–5 | 37.50% |
| Mashin vs Panda | 3–4 | 42.86% |
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.