| Book Horse vs Eddy | 5–9 | 35.71% |
| Book Horse vs Steve | 10–3 | 76.92% |
| Book Horse vs Jin | 3–9 | 25.00% |
| Book Horse vs Reina | 10–2 | 83.33% |
| Book Horse vs Azucena | 10–2 | 83.33% |
| Book Horse vs Kazuya | 4–7 | 36.36% |
| Book Horse vs Bryan | 5–4 | 55.56% |
| Book Horse vs Lili | 4–5 | 44.44% |
| Book Horse vs Armor King | 4–4 | 50.00% |
| Book Horse vs King | 5–2 | 71.43% |
| Book Horse vs Paul | 1–5 | 16.67% |
| Book Horse vs Yoshimitsu | 3–3 | 50.00% |
| Book Horse vs Lars | 5–1 | 83.33% |
| Book Horse vs Lee | 3–2 | 60.00% |
| Book Horse vs Leroy | 4–1 | 80.00% |
| Book Horse vs Feng | 2–2 | 50.00% |
| Book Horse vs Alisa | 2–2 | 50.00% |
| Book Horse vs Raven | 3–1 | 75.00% |
| Book Horse vs Asuka | 1–2 | 33.33% |
| Book Horse vs Victor | 1–2 | 33.33% |
| Book Horse vs Lidia | 2–1 | 66.67% |
| Book Horse vs Hwoarang | 1–1 | 50.00% |
| Book Horse vs Devil Jin | 0–2 | 0.00% |
| Book Horse vs Leo | 2–0 | 100.00% |
| Book Horse vs Kuma | 2–0 | 100.00% |
| Book Horse vs Anna | 0–2 | 0.00% |
| Book Horse vs Law | 1–0 | 100.00% |
| Book Horse vs Dragunov | 1–0 | 100.00% |
| Book Horse vs Shaheen | 1–0 | 100.00% |
| Book Horse vs Nina | 1–0 | 100.00% |
| Book Horse vs Panda | 1–0 | 100.00% |
| Book Horse vs Clive | 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.