| William-Blake vs Kazuya | 250–240 | 51.02% |
| William-Blake vs Jin | 153–170 | 47.37% |
| William-Blake vs Bryan | 145–164 | 46.93% |
| William-Blake vs King | 144–129 | 52.75% |
| William-Blake vs Paul | 124–142 | 46.62% |
| William-Blake vs Hwoarang | 128–129 | 49.81% |
| William-Blake vs Law | 101–146 | 40.89% |
| William-Blake vs Yoshimitsu | 123–113 | 52.12% |
| William-Blake vs Reina | 109–124 | 46.78% |
| William-Blake vs Steve | 124–82 | 60.19% |
| William-Blake vs Heihachi | 84–112 | 42.86% |
| William-Blake vs Dragunov | 103–89 | 53.65% |
| William-Blake vs Lili | 76–101 | 42.94% |
| William-Blake vs Lee | 75–75 | 50.00% |
| William-Blake vs Armor King | 58–73 | 44.27% |
| William-Blake vs Devil Jin | 60–68 | 46.88% |
| William-Blake vs Asuka | 65–61 | 51.59% |
| William-Blake vs Jun | 47–68 | 40.87% |
| William-Blake vs Fahkumram | 55–60 | 47.83% |
| William-Blake vs Anna | 53–58 | 47.75% |
| William-Blake vs Lars | 50–58 | 46.30% |
| William-Blake vs Xiaoyu | 36–65 | 35.64% |
| William-Blake vs Alisa | 39–61 | 39.00% |
| William-Blake vs Nina | 38–54 | 41.30% |
| William-Blake vs Azucena | 55–35 | 61.11% |
| William-Blake vs Feng | 37–51 | 42.05% |
| William-Blake vs Eddy | 38–46 | 45.24% |
| William-Blake vs Jack-8 | 38–37 | 50.67% |
| William-Blake vs Claudio | 24–45 | 34.78% |
| William-Blake vs Leroy | 30–35 | 46.15% |
| William-Blake vs Victor | 24–41 | 36.92% |
| William-Blake vs Lidia | 25–35 | 41.67% |
| William-Blake vs Leo | 39–19 | 67.24% |
| William-Blake vs Clive | 20–36 | 35.71% |
| William-Blake vs Zafina | 19–30 | 38.78% |
| William-Blake vs Raven | 23–25 | 47.92% |
| William-Blake vs Shaheen | 19–10 | 65.52% |
| William-Blake vs Miary Zo | 17–12 | 58.62% |
| William-Blake vs Kuma | 10–15 | 40.00% |
| 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.