| William-Blake vs Kazuya | 258–250 | 50.79% |
| William-Blake vs Bryan | 190–201 | 48.59% |
| William-Blake vs Jin | 189–189 | 50.00% |
| William-Blake vs King | 181–151 | 54.52% |
| William-Blake vs Hwoarang | 166–163 | 50.46% |
| William-Blake vs Law | 138–146 | 48.59% |
| William-Blake vs Steve | 137–105 | 56.61% |
| William-Blake vs Paul | 115–125 | 47.92% |
| William-Blake vs Reina | 116–121 | 48.95% |
| William-Blake vs Lili | 77–150 | 33.92% |
| William-Blake vs Heihachi | 80–131 | 37.91% |
| William-Blake vs Dragunov | 103–96 | 51.76% |
| William-Blake vs Yoshimitsu | 98–100 | 49.49% |
| William-Blake vs Lee | 83–69 | 54.61% |
| William-Blake vs Devil Jin | 67–83 | 44.67% |
| William-Blake vs Asuka | 51–84 | 37.78% |
| William-Blake vs Azucena | 60–66 | 47.62% |
| William-Blake vs Alisa | 59–55 | 51.75% |
| William-Blake vs Jun | 58–55 | 51.33% |
| William-Blake vs Nina | 54–54 | 50.00% |
| William-Blake vs Lidia | 65–42 | 60.75% |
| William-Blake vs Xiaoyu | 38–67 | 36.19% |
| William-Blake vs Lars | 55–49 | 52.88% |
| William-Blake vs Feng | 40–54 | 42.55% |
| William-Blake vs Armor King | 48–43 | 52.75% |
| William-Blake vs Eddy | 38–40 | 48.72% |
| William-Blake vs Clive | 30–42 | 41.67% |
| William-Blake vs Claudio | 33–38 | 46.48% |
| William-Blake vs Victor | 32–39 | 45.07% |
| William-Blake vs Leroy | 32–35 | 47.76% |
| William-Blake vs Jack-8 | 25–36 | 40.98% |
| William-Blake vs Leo | 23–26 | 46.94% |
| William-Blake vs Kuma | 13–31 | 29.55% |
| William-Blake vs Zafina | 19–25 | 43.18% |
| William-Blake vs Raven | 18–25 | 41.86% |
| William-Blake vs Shaheen | 19–21 | 47.50% |
| William-Blake vs Anna | 16–23 | 41.03% |
| William-Blake vs Fahkumram | 19–11 | 63.33% |
| William-Blake vs Miary Zo | 15–9 | 62.50% |
| William-Blake vs Panda | 5–14 | 26.32% |
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.