| Keff vs Kazuya | 273–291 | 48.40% |
| Keff vs Jin | 194–241 | 44.60% |
| Keff vs King | 182–213 | 46.08% |
| Keff vs Bryan | 209–179 | 53.87% |
| Keff vs Hwoarang | 164–221 | 42.60% |
| Keff vs Law | 193–178 | 52.02% |
| Keff vs Steve | 159–146 | 52.13% |
| Keff vs Paul | 138–148 | 48.25% |
| Keff vs Heihachi | 129–141 | 47.78% |
| Keff vs Reina | 152–117 | 56.51% |
| Keff vs Lili | 119–147 | 44.74% |
| Keff vs Dragunov | 103–130 | 44.21% |
| Keff vs Yoshimitsu | 114–111 | 50.67% |
| Keff vs Devil Jin | 81–126 | 39.13% |
| Keff vs Eddy | 105–86 | 54.97% |
| Keff vs Jun | 83–91 | 47.70% |
| Keff vs Nina | 84–87 | 49.12% |
| Keff vs Feng | 73–93 | 43.98% |
| Keff vs Asuka | 76–86 | 46.91% |
| Keff vs Alisa | 83–79 | 51.23% |
| Keff vs Lars | 70–79 | 46.98% |
| Keff vs Xiaoyu | 43–93 | 31.62% |
| Keff vs Azucena | 49–78 | 38.58% |
| Keff vs Victor | 52–61 | 46.02% |
| Keff vs Fahkumram | 60–46 | 56.60% |
| Keff vs Armor King | 36–70 | 33.96% |
| Keff vs Lee | 38–62 | 38.00% |
| Keff vs Leo | 37–53 | 41.11% |
| Keff vs Lidia | 41–43 | 48.81% |
| Keff vs Claudio | 36–41 | 46.75% |
| Keff vs Leroy | 34–35 | 49.28% |
| Keff vs Jack-8 | 36–32 | 52.94% |
| Keff vs Raven | 22–41 | 34.92% |
| Keff vs Clive | 20–42 | 32.26% |
| Keff vs Anna | 17–26 | 39.53% |
| Keff vs Shaheen | 12–29 | 29.27% |
| Keff vs Zafina | 10–29 | 25.64% |
| Keff vs Kuma | 17–20 | 45.95% |
| Keff vs Miary Zo | 12–17 | 41.38% |
| Keff vs Panda | 11–17 | 39.29% |
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.