| Westy vs Jin | 141–119 | 54.23% |
| Westy vs Kazuya | 123–118 | 51.04% |
| Westy vs Hwoarang | 104–96 | 52.00% |
| Westy vs King | 92–92 | 50.00% |
| Westy vs Paul | 70–96 | 42.17% |
| Westy vs Reina | 92–69 | 57.14% |
| Westy vs Bryan | 79–78 | 50.32% |
| Westy vs Yoshimitsu | 73–69 | 51.41% |
| Westy vs Law | 91–48–1 | 65.47% |
| Westy vs Steve | 82–56 | 59.42% |
| Westy vs Lili | 56–64 | 46.67% |
| Westy vs Dragunov | 54–53 | 50.47% |
| Westy vs Lars | 51–53 | 49.04% |
| Westy vs Xiaoyu | 53–39 | 57.61% |
| Westy vs Lee | 45–47 | 48.91% |
| Westy vs Devil Jin | 37–45 | 45.12% |
| Westy vs Nina | 34–48 | 41.46% |
| Westy vs Azucena | 39–43 | 47.56% |
| Westy vs Eddy | 36–43 | 45.57% |
| Westy vs Feng | 36–42 | 46.15% |
| Westy vs Asuka | 42–33 | 56.00% |
| Westy vs Jun | 28–30 | 48.28% |
| Westy vs Victor | 28–30 | 48.28% |
| Westy vs Alisa | 31–26 | 54.39% |
| Westy vs Jack-8 | 23–30 | 43.40% |
| Westy vs Raven | 21–22 | 48.84% |
| Westy vs Claudio | 22–19 | 53.66% |
| Westy vs Leroy | 23–18 | 56.10% |
| Westy vs Leo | 16–19 | 45.71% |
| Westy vs Zafina | 14–19 | 42.42% |
| Westy vs Shaheen | 13–17 | 43.33% |
| Westy vs Lidia | 17–11 | 60.71% |
| Westy vs Kuma | 11–16 | 40.74% |
| Westy vs Heihachi | 6–5 | 54.55% |
| Westy vs Panda | 1–5 | 16.67% |
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.