| Yamagucci vs King | 24–3 | 88.89% |
| Yamagucci vs Jin | 14–5 | 73.68% |
| Yamagucci vs Hwoarang | 10–7 | 58.82% |
| Yamagucci vs Kazuya | 12–5 | 70.59% |
| Yamagucci vs Lars | 7–4 | 63.64% |
| Yamagucci vs Reina | 9–2 | 81.82% |
| Yamagucci vs Steve | 9–1 | 90.00% |
| Yamagucci vs Azucena | 9–0 | 100.00% |
| Yamagucci vs Law | 7–0 | 100.00% |
| Yamagucci vs Yoshimitsu | 5–2 | 71.43% |
| Yamagucci vs Asuka | 6–1 | 85.71% |
| Yamagucci vs Alisa | 6–1 | 85.71% |
| Yamagucci vs Lee | 4–3 | 57.14% |
| Yamagucci vs Jun | 1–6 | 14.29% |
| Yamagucci vs Nina | 5–1 | 83.33% |
| Yamagucci vs Victor | 5–1 | 83.33% |
| Yamagucci vs Xiaoyu | 5–0 | 100.00% |
| Yamagucci vs Lili | 3–2 | 60.00% |
| Yamagucci vs Devil Jin | 3–1 | 75.00% |
| Yamagucci vs Eddy | 4–0 | 100.00% |
| Yamagucci vs Heihachi | 2–2 | 50.00% |
| Yamagucci vs Bryan | 3–0 | 100.00% |
| Yamagucci vs Jack-8 | 2–1 | 66.67% |
| Yamagucci vs Leroy | 2–1 | 66.67% |
| Yamagucci vs Feng | 2–0 | 100.00% |
| Yamagucci vs Dragunov | 2–0 | 100.00% |
| Yamagucci vs Leo | 2–0 | 100.00% |
| Yamagucci vs Claudio | 1–1 | 50.00% |
| Yamagucci vs Kuma | 2–0 | 100.00% |
| Yamagucci vs Panda | 2–0 | 100.00% |
| Yamagucci vs Zafina | 2–0 | 100.00% |
| Yamagucci vs Lidia | 2–0 | 100.00% |
| Yamagucci vs Armor King | 2–0 | 100.00% |
| Yamagucci vs Paul | 0–1 | 0.00% |
| Yamagucci vs Miary Zo | 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.