| Book vs Armor King | 47–37 | 55.95% |
| Book vs Reina | 29–17 | 63.04% |
| Book vs Kazuya | 21–12 | 63.64% |
| Book vs King | 21–11 | 65.62% |
| Book vs Steve | 20–11 | 64.52% |
| Book vs Hwoarang | 19–10 | 65.52% |
| Book vs Jin | 22–7 | 75.86% |
| Book vs Bryan | 18–11 | 62.07% |
| Book vs Dragunov | 15–12 | 55.56% |
| Book vs Paul | 18–8 | 69.23% |
| Book vs Law | 21–5 | 80.77% |
| Book vs Lili | 16–9 | 64.00% |
| Book vs Lars | 14–10 | 58.33% |
| Book vs Eddy | 14–10 | 58.33% |
| Book vs Asuka | 9–12 | 42.86% |
| Book vs Nina | 9–10 | 47.37% |
| Book vs Jun | 11–8 | 57.89% |
| Book vs Lee | 13–4 | 76.47% |
| Book vs Victor | 9–6 | 60.00% |
| Book vs Yoshimitsu | 6–8 | 42.86% |
| Book vs Xiaoyu | 9–5 | 64.29% |
| Book vs Zafina | 8–5 | 61.54% |
| Book vs Leroy | 8–4 | 66.67% |
| Book vs Raven | 6–6 | 50.00% |
| Book vs Devil Jin | 8–3 | 72.73% |
| Book vs Shaheen | 5–5 | 50.00% |
| Book vs Azucena | 4–6 | 40.00% |
| Book vs Feng | 5–4 | 55.56% |
| Book vs Clive | 3–6 | 33.33% |
| Book vs Fahkumram | 4–5 | 44.44% |
| Book vs Leo | 4–3 | 57.14% |
| Book vs Heihachi | 3–4 | 42.86% |
| Book vs Kuma | 6–0 | 100.00% |
| Book vs Anna | 3–3 | 50.00% |
| Book vs Jack-8 | 4–1 | 80.00% |
| Book vs Panda | 2–3 | 40.00% |
| Book vs Claudio | 1–3 | 25.00% |
| Book vs Alisa | 3–0 | 100.00% |
| Book vs Lidia | 2–1 | 66.67% |
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.