| MostEffective vs Kazuya | 413–406 | 50.43% |
| MostEffective vs Jin | 365–388 | 48.47% |
| MostEffective vs Bryan | 371–373 | 49.87% |
| MostEffective vs Hwoarang | 401–235 | 63.05% |
| MostEffective vs Heihachi | 280–346 | 44.73% |
| MostEffective vs King | 312–266 | 53.98% |
| MostEffective vs Law | 303–242 | 55.60% |
| MostEffective vs Dragunov | 275–269 | 50.55% |
| MostEffective vs Paul | 273–225 | 54.82% |
| MostEffective vs Lee | 245–224 | 52.24% |
| MostEffective vs Lili | 266–186 | 58.85% |
| MostEffective vs Devil Jin | 243–203 | 54.48% |
| MostEffective vs Reina | 190–248 | 43.38% |
| MostEffective vs Steve | 226–196 | 53.55% |
| MostEffective vs Yoshimitsu | 236–175 | 57.42% |
| MostEffective vs Asuka | 207–154 | 57.34% |
| MostEffective vs Lars | 194–159 | 54.96% |
| MostEffective vs Azucena | 150–202 | 42.61% |
| MostEffective vs Nina | 169–152 | 52.65% |
| MostEffective vs Clive | 152–156 | 49.35% |
| MostEffective vs Feng | 152–149 | 50.50% |
| MostEffective vs Raven | 177–108 | 62.11% |
| MostEffective vs Xiaoyu | 151–126 | 54.51% |
| MostEffective vs Claudio | 125–150 | 45.45% |
| MostEffective vs Jun | 152–122 | 55.47% |
| MostEffective vs Leo | 147–123 | 54.44% |
| MostEffective vs Zafina | 138–131 | 51.30% |
| MostEffective vs Eddy | 126–132 | 48.84% |
| MostEffective vs Victor | 112–144 | 43.75% |
| MostEffective vs Alisa | 149–95 | 61.07% |
| MostEffective vs Lidia | 93–148 | 38.59% |
| MostEffective vs Fahkumram | 122–116 | 51.26% |
| MostEffective vs Jack-8 | 98–130 | 42.98% |
| MostEffective vs Leroy | 103–108 | 48.82% |
| MostEffective vs Miary Zo | 95–105 | 47.50% |
| MostEffective vs Shaheen | 107–86 | 55.44% |
| MostEffective vs Anna | 74–95 | 43.79% |
| MostEffective vs Kuma | 71–91 | 43.83% |
| MostEffective vs Armor King | 74–76–1 | 49.33% |
| MostEffective vs Panda | 34–31 | 52.31% |
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.