| Kosha vs Kazuya | 121–101 | 54.50% |
| Kosha vs Bryan | 107–108 | 49.77% |
| Kosha vs Heihachi | 98–99 | 49.75% |
| Kosha vs King | 95–80 | 54.29% |
| Kosha vs Reina | 86–86 | 50.00% |
| Kosha vs Jin | 97–72 | 57.40% |
| Kosha vs Steve | 95–70 | 57.58% |
| Kosha vs Dragunov | 69–68 | 50.36% |
| Kosha vs Law | 62–67 | 48.06% |
| Kosha vs Armor King | 57–61 | 48.31% |
| Kosha vs Yoshimitsu | 50–66 | 43.10% |
| Kosha vs Jun | 55–58 | 48.67% |
| Kosha vs Azucena | 57–56 | 50.44% |
| Kosha vs Asuka | 38–72 | 34.55% |
| Kosha vs Paul | 71–36 | 66.36% |
| Kosha vs Lee | 57–43 | 57.00% |
| Kosha vs Lili | 42–55 | 43.30% |
| Kosha vs Hwoarang | 47–47 | 50.00% |
| Kosha vs Xiaoyu | 41–49 | 45.56% |
| Kosha vs Eddy | 28–60 | 31.82% |
| Kosha vs Leo | 33–52 | 38.82% |
| Kosha vs Lars | 36–45–2 | 44.44% |
| Kosha vs Fahkumram | 37–40 | 48.05% |
| Kosha vs Devil Jin | 51–24 | 68.00% |
| Kosha vs Feng | 27–48 | 36.00% |
| Kosha vs Clive | 36–33 | 52.17% |
| Kosha vs Nina | 28–33 | 45.90% |
| Kosha vs Victor | 23–37 | 38.33% |
| Kosha vs Jack-8 | 30–29 | 50.85% |
| Kosha vs Alisa | 25–34 | 42.37% |
| Kosha vs Raven | 23–34 | 40.35% |
| Kosha vs Leroy | 21–33 | 38.89% |
| Kosha vs Claudio | 25–24 | 51.02% |
| Kosha vs Kuma | 26–21 | 55.32% |
| Kosha vs Lidia | 21–22 | 48.84% |
| Kosha vs Shaheen | 16–21 | 43.24% |
| Kosha vs Zafina | 15–15 | 50.00% |
| Kosha vs Anna | 11–15 | 42.31% |
| Kosha vs Panda | 8–11 | 42.11% |
| Kosha vs Miary Zo | 7–10 | 41.18% |
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.