| Mash Patatoes vs Heihachi | 29–22 | 56.86% |
| Mash Patatoes vs Kazuya | 26–12 | 68.42% |
| Mash Patatoes vs Jin | 23–12 | 65.71% |
| Mash Patatoes vs Paul | 20–12 | 62.50% |
| Mash Patatoes vs Bryan | 19–8 | 70.37% |
| Mash Patatoes vs King | 20–4 | 83.33% |
| Mash Patatoes vs Armor King | 17–7 | 70.83% |
| Mash Patatoes vs Steve | 12–10 | 54.55% |
| Mash Patatoes vs Reina | 14–7 | 66.67% |
| Mash Patatoes vs Yoshimitsu | 12–7 | 63.16% |
| Mash Patatoes vs Leo | 9–8 | 52.94% |
| Mash Patatoes vs Dragunov | 9–7 | 56.25% |
| Mash Patatoes vs Lili | 8–7 | 53.33% |
| Mash Patatoes vs Law | 8–6 | 57.14% |
| Mash Patatoes vs Lidia | 8–6 | 57.14% |
| Mash Patatoes vs Lars | 10–3 | 76.92% |
| Mash Patatoes vs Lee | 9–4 | 69.23% |
| Mash Patatoes vs Leroy | 4–8 | 33.33% |
| Mash Patatoes vs Azucena | 11–1 | 91.67% |
| Mash Patatoes vs Victor | 5–7 | 41.67% |
| Mash Patatoes vs Asuka | 5–6 | 45.45% |
| Mash Patatoes vs Jun | 8–3 | 72.73% |
| Mash Patatoes vs Xiaoyu | 3–7 | 30.00% |
| Mash Patatoes vs Feng | 5–5 | 50.00% |
| Mash Patatoes vs Nina | 4–6 | 40.00% |
| Mash Patatoes vs Shaheen | 6–3 | 66.67% |
| Mash Patatoes vs Raven | 6–3 | 66.67% |
| Mash Patatoes vs Fahkumram | 4–5 | 44.44% |
| Mash Patatoes vs Hwoarang | 6–2 | 75.00% |
| Mash Patatoes vs Claudio | 3–4 | 42.86% |
| Mash Patatoes vs Jack-8 | 2–4 | 33.33% |
| Mash Patatoes vs Devil Jin | 5–1 | 83.33% |
| Mash Patatoes vs Alisa | 3–3 | 50.00% |
| Mash Patatoes vs Eddy | 5–0 | 100.00% |
| Mash Patatoes vs Miary Zo | 2–3 | 40.00% |
| Mash Patatoes vs Zafina | 3–1 | 75.00% |
| Mash Patatoes vs Kuma | 0–3 | 0.00% |
| Mash Patatoes vs Anna | 2–0 | 100.00% |
| Mash Patatoes vs Panda | 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.