| yammy vs Jin | 6–7 | 46.15% |
| yammy vs Kazuya | 7–4 | 63.64% |
| yammy vs Anna | 4–6 | 40.00% |
| yammy vs Heihachi | 5–4 | 55.56% |
| yammy vs Hwoarang | 5–3 | 62.50% |
| yammy vs Fahkumram | 4–4 | 50.00% |
| yammy vs Nina | 7–0 | 100.00% |
| yammy vs Paul | 6–0 | 100.00% |
| yammy vs King | 3–3 | 50.00% |
| yammy vs Leo | 6–0 | 100.00% |
| yammy vs Lee | 2–4 | 33.33% |
| yammy vs Law | 4–1 | 80.00% |
| yammy vs Yoshimitsu | 4–1 | 80.00% |
| yammy vs Feng | 3–2 | 60.00% |
| yammy vs Reina | 2–3 | 40.00% |
| yammy vs Asuka | 2–2 | 50.00% |
| yammy vs Azucena | 3–1 | 75.00% |
| yammy vs Eddy | 2–2 | 50.00% |
| yammy vs Lili | 2–1 | 66.67% |
| yammy vs Claudio | 1–2 | 33.33% |
| yammy vs Kuma | 0–3 | 0.00% |
| yammy vs Bryan | 2–0 | 100.00% |
| yammy vs Steve | 2–0 | 100.00% |
| yammy vs Shaheen | 0–2 | 0.00% |
| yammy vs Panda | 2–0 | 100.00% |
| yammy vs Jun | 0–2 | 0.00% |
| yammy vs Clive | 1–1 | 50.00% |
| yammy vs Dragunov | 0–1 | 0.00% |
| yammy vs Lars | 0–1 | 0.00% |
| yammy vs Alisa | 0–1 | 0.00% |
| yammy vs Zafina | 0–1 | 0.00% |
| yammy vs Raven | 0–1 | 0.00% |
| yammy vs Lidia | 0–1 | 0.00% |
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.