| John30991 vs King | 97–111 | 46.63% |
| John30991 vs Jin | 92–105 | 46.70% |
| John30991 vs Kazuya | 70–112 | 38.46% |
| John30991 vs Law | 81–88 | 47.93% |
| John30991 vs Steve | 92–73 | 55.76% |
| John30991 vs Reina | 78–83 | 48.45% |
| John30991 vs Bryan | 79–73 | 51.97% |
| John30991 vs Hwoarang | 72–73 | 49.66% |
| John30991 vs Heihachi | 47–68 | 40.87% |
| John30991 vs Dragunov | 48–64 | 42.86% |
| John30991 vs Eddy | 65–47 | 58.04% |
| John30991 vs Lee | 57–46 | 55.34% |
| John30991 vs Jun | 49–51 | 49.00% |
| John30991 vs Yoshimitsu | 46–53 | 46.46% |
| John30991 vs Lili | 56–40 | 58.33% |
| John30991 vs Azucena | 52–42 | 55.32% |
| John30991 vs Lars | 43–48 | 47.25% |
| John30991 vs Xiaoyu | 33–41 | 44.59% |
| John30991 vs Paul | 30–42 | 41.67% |
| John30991 vs Nina | 37–33 | 52.86% |
| John30991 vs Fahkumram | 34–32 | 51.52% |
| John30991 vs Alisa | 33–28 | 54.10% |
| John30991 vs Asuka | 23–36 | 38.98% |
| John30991 vs Victor | 37–21 | 63.79% |
| John30991 vs Jack-8 | 37–19 | 66.07% |
| John30991 vs Lidia | 25–28 | 47.17% |
| John30991 vs Raven | 25–27 | 48.08% |
| John30991 vs Anna | 22–26 | 45.83% |
| John30991 vs Clive | 19–27 | 41.30% |
| John30991 vs Leroy | 19–26 | 42.22% |
| John30991 vs Claudio | 23–19 | 54.76% |
| John30991 vs Feng | 11–29 | 27.50% |
| John30991 vs Devil Jin | 16–19 | 45.71% |
| John30991 vs Leo | 10–24 | 29.41% |
| John30991 vs Shaheen | 11–12 | 47.83% |
| John30991 vs Panda | 8–14 | 36.36% |
| John30991 vs Kuma | 8–13 | 38.10% |
| John30991 vs Zafina | 9–10 | 47.37% |
| John30991 vs Armor King | 6–12 | 33.33% |
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.