| John Walker vs Jin | 209–152 | 57.89% |
| John Walker vs Kazuya | 171–97 | 63.81% |
| John Walker vs King | 138–123 | 52.87% |
| John Walker vs Hwoarang | 126–129 | 49.41% |
| John Walker vs Bryan | 116–91 | 56.04% |
| John Walker vs Reina | 114–87 | 56.72% |
| John Walker vs Lili | 110–89 | 55.28% |
| John Walker vs Yoshimitsu | 89–91 | 49.44% |
| John Walker vs Dragunov | 91–83 | 52.30% |
| John Walker vs Paul | 97–73 | 57.06% |
| John Walker vs Law | 93–70 | 57.06% |
| John Walker vs Jun | 87–71 | 55.06% |
| John Walker vs Devil Jin | 73–74 | 49.66% |
| John Walker vs Xiaoyu | 81–63 | 56.25% |
| John Walker vs Heihachi | 75–68 | 52.45% |
| John Walker vs Steve | 75–64 | 53.96% |
| John Walker vs Feng | 61–76 | 44.53% |
| John Walker vs Eddy | 60–77 | 43.80% |
| John Walker vs Azucena | 78–46 | 62.90% |
| John Walker vs Lars | 59–61 | 49.17% |
| John Walker vs Asuka | 66–53 | 55.46% |
| John Walker vs Victor | 48–66 | 42.11% |
| John Walker vs Lidia | 52–50 | 50.98% |
| John Walker vs Claudio | 49–52 | 48.51% |
| John Walker vs Nina | 39–56 | 41.05% |
| John Walker vs Leo | 44–48 | 47.83% |
| John Walker vs Alisa | 42–48 | 46.67% |
| John Walker vs Lee | 44–46 | 48.89% |
| John Walker vs Anna | 48–42 | 53.33% |
| John Walker vs Raven | 33–44 | 42.86% |
| John Walker vs Clive | 41–36 | 53.25% |
| John Walker vs Armor King | 34–42 | 44.74% |
| John Walker vs Jack-8 | 36–33 | 52.17% |
| John Walker vs Leroy | 35–33 | 51.47% |
| John Walker vs Fahkumram | 22–42 | 34.38% |
| John Walker vs Kuma | 31–28 | 52.54% |
| John Walker vs Zafina | 23–22 | 51.11% |
| John Walker vs Shaheen | 17–24 | 41.46% |
| John Walker vs Panda | 7–12 | 36.84% |
| John Walker vs Miary Zo | 5–11 | 31.25% |
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.