| Kovalski vs Kazuya | 97–122 | 44.29% |
| Kovalski vs Jin | 84–93 | 47.46% |
| Kovalski vs Hwoarang | 73–78 | 48.34% |
| Kovalski vs King | 78–72 | 52.00% |
| Kovalski vs Bryan | 65–85 | 43.33% |
| Kovalski vs Reina | 65–83 | 43.92% |
| Kovalski vs Dragunov | 50–70 | 41.67% |
| Kovalski vs Lidia | 53–62 | 46.09% |
| Kovalski vs Law | 48–64 | 42.86% |
| Kovalski vs Paul | 40–64 | 38.46% |
| Kovalski vs Steve | 41–53 | 43.62% |
| Kovalski vs Yoshimitsu | 41–48 | 46.07% |
| Kovalski vs Lee | 39–46 | 45.88% |
| Kovalski vs Lili | 41–33 | 55.41% |
| Kovalski vs Heihachi | 24–48 | 33.33% |
| Kovalski vs Lars | 41–29 | 58.57% |
| Kovalski vs Victor | 31–38 | 44.93% |
| Kovalski vs Asuka | 27–41 | 39.71% |
| Kovalski vs Xiaoyu | 33–34 | 49.25% |
| Kovalski vs Alisa | 26–34 | 43.33% |
| Kovalski vs Feng | 27–32 | 45.76% |
| Kovalski vs Devil Jin | 23–32 | 41.82% |
| Kovalski vs Nina | 22–33 | 40.00% |
| Kovalski vs Jun | 27–26 | 50.94% |
| Kovalski vs Claudio | 25–15 | 62.50% |
| Kovalski vs Azucena | 15–20 | 42.86% |
| Kovalski vs Kuma | 13–19 | 40.62% |
| Kovalski vs Leroy | 15–14 | 51.72% |
| Kovalski vs Jack-8 | 11–16 | 40.74% |
| Kovalski vs Eddy | 13–14 | 48.15% |
| Kovalski vs Shaheen | 10–11 | 47.62% |
| Kovalski vs Leo | 6–13 | 31.58% |
| Kovalski vs Raven | 8–4 | 66.67% |
| Kovalski vs Zafina | 8–3 | 72.73% |
| Kovalski vs Panda | 2–2 | 50.00% |
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.