| Yamaguchi vs Armor King | 25–14 | 64.10% |
| Yamaguchi vs Reina | 24–12 | 66.67% |
| Yamaguchi vs Jin | 17–13 | 56.67% |
| Yamaguchi vs King | 21–7 | 75.00% |
| Yamaguchi vs Kazuya | 19–9 | 67.86% |
| Yamaguchi vs Law | 17–9 | 65.38% |
| Yamaguchi vs Hwoarang | 14–9 | 60.87% |
| Yamaguchi vs Yoshimitsu | 14–8 | 63.64% |
| Yamaguchi vs Lars | 14–8 | 63.64% |
| Yamaguchi vs Steve | 12–8 | 60.00% |
| Yamaguchi vs Lili | 13–7 | 65.00% |
| Yamaguchi vs Heihachi | 10–8 | 55.56% |
| Yamaguchi vs Paul | 9–8 | 52.94% |
| Yamaguchi vs Fahkumram | 9–7 | 56.25% |
| Yamaguchi vs Jack-8 | 5–10 | 33.33% |
| Yamaguchi vs Feng | 8–7 | 53.33% |
| Yamaguchi vs Leroy | 13–2 | 86.67% |
| Yamaguchi vs Bryan | 9–4 | 69.23% |
| Yamaguchi vs Nina | 7–6 | 53.85% |
| Yamaguchi vs Victor | 8–5 | 61.54% |
| Yamaguchi vs Clive | 5–8 | 38.46% |
| Yamaguchi vs Raven | 7–5 | 58.33% |
| Yamaguchi vs Miary Zo | 7–5 | 58.33% |
| Yamaguchi vs Asuka | 9–2 | 81.82% |
| Yamaguchi vs Xiaoyu | 7–3 | 70.00% |
| Yamaguchi vs Dragunov | 7–3 | 70.00% |
| Yamaguchi vs Kuma | 6–3 | 66.67% |
| Yamaguchi vs Eddy | 9–0 | 100.00% |
| Yamaguchi vs Leo | 5–3 | 62.50% |
| Yamaguchi vs Anna | 6–2 | 75.00% |
| Yamaguchi vs Claudio | 5–2 | 71.43% |
| Yamaguchi vs Jun | 6–1 | 85.71% |
| Yamaguchi vs Azucena | 2–5 | 28.57% |
| Yamaguchi vs Lidia | 3–3 | 50.00% |
| Yamaguchi vs Devil Jin | 1–4 | 20.00% |
| Yamaguchi vs Lee | 3–2 | 60.00% |
| Yamaguchi vs Shaheen | 2–1 | 66.67% |
| Yamaguchi vs Alisa | 1–1 | 50.00% |
| Yamaguchi vs Zafina | 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.