| Book vs Reina | 18–9 | 66.67% |
| Book vs Eddy | 14–9 | 60.87% |
| Book vs Steve | 12–9 | 57.14% |
| Book vs Hwoarang | 12–7 | 63.16% |
| Book vs Bryan | 12–7 | 63.16% |
| Book vs Jin | 15–3 | 83.33% |
| Book vs Kazuya | 13–5 | 72.22% |
| Book vs Lili | 10–8 | 55.56% |
| Book vs Dragunov | 11–7 | 61.11% |
| Book vs King | 10–7 | 58.82% |
| Book vs Asuka | 7–8 | 46.67% |
| Book vs Paul | 8–4 | 66.67% |
| Book vs Law | 10–2 | 83.33% |
| Book vs Jun | 8–4 | 66.67% |
| Book vs Devil Jin | 8–3 | 72.73% |
| Book vs Lars | 8–3 | 72.73% |
| Book vs Leroy | 7–4 | 63.64% |
| Book vs Yoshimitsu | 6–4 | 60.00% |
| Book vs Shaheen | 5–5 | 50.00% |
| Book vs Zafina | 7–3 | 70.00% |
| Book vs Victor | 6–3 | 66.67% |
| Book vs Nina | 5–3 | 62.50% |
| Book vs Feng | 3–4 | 42.86% |
| Book vs Lee | 4–3 | 57.14% |
| Book vs Xiaoyu | 4–2 | 66.67% |
| Book vs Leo | 4–2 | 66.67% |
| Book vs Azucena | 2–4 | 33.33% |
| Book vs Kuma | 5–0 | 100.00% |
| Book vs Claudio | 1–2 | 33.33% |
| Book vs Raven | 3–0 | 100.00% |
| Book vs Jack-8 | 1–1 | 50.00% |
| Book vs Alisa | 2–0 | 100.00% |
| Book vs Lidia | 2–0 | 100.00% |
| Book vs Panda | 1–0 | 100.00% |
| Book vs Heihachi | 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.