| Grievious vs King | 151–166 | 47.63% |
| Grievious vs Jin | 137–168 | 44.92% |
| Grievious vs Kazuya | 116–163 | 41.58% |
| Grievious vs Bryan | 110–147 | 42.80% |
| Grievious vs Steve | 99–119 | 45.41% |
| Grievious vs Hwoarang | 104–98 | 51.49% |
| Grievious vs Dragunov | 76–104 | 42.22% |
| Grievious vs Heihachi | 72–93 | 43.64% |
| Grievious vs Lee | 65–90 | 41.94% |
| Grievious vs Lili | 76–74 | 50.67% |
| Grievious vs Reina | 61–79 | 43.57% |
| Grievious vs Law | 57–79 | 41.91% |
| Grievious vs Devil Jin | 53–83 | 38.97% |
| Grievious vs Yoshimitsu | 50–77 | 39.37% |
| Grievious vs Paul | 61–59 | 50.83% |
| Grievious vs Nina | 50–45 | 52.63% |
| Grievious vs Jun | 38–54 | 41.30% |
| Grievious vs Eddy | 49–43 | 53.26% |
| Grievious vs Feng | 35–55 | 38.89% |
| Grievious vs Asuka | 34–51 | 40.00% |
| Grievious vs Clive | 29–50 | 36.71% |
| Grievious vs Lars | 37–41 | 47.44% |
| Grievious vs Azucena | 36–38 | 48.65% |
| Grievious vs Alisa | 32–39 | 45.07% |
| Grievious vs Armor King | 20–51 | 28.17% |
| Grievious vs Claudio | 27–43 | 38.57% |
| Grievious vs Jack-8 | 25–35 | 41.67% |
| Grievious vs Xiaoyu | 19–34 | 35.85% |
| Grievious vs Victor | 16–30 | 34.78% |
| Grievious vs Lidia | 18–28 | 39.13% |
| Grievious vs Shaheen | 16–28 | 36.36% |
| Grievious vs Zafina | 19–23 | 45.24% |
| Grievious vs Raven | 10–24 | 29.41% |
| Grievious vs Leo | 13–20 | 39.39% |
| Grievious vs Kuma | 10–20 | 33.33% |
| Grievious vs Miary Zo | 14–13 | 51.85% |
| Grievious vs Leroy | 13–9 | 59.09% |
| Grievious vs Anna | 13–9 | 59.09% |
| Grievious vs Fahkumram | 4–11 | 26.67% |
| Grievious vs Panda | 6–8 | 42.86% |
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.