| Kosho vs Devil Jin | 18–9 | 66.67% |
| Kosho vs Armor King | 13–12 | 52.00% |
| Kosho vs Kazuya | 19–5 | 79.17% |
| Kosho vs Jin | 16–4 | 80.00% |
| Kosho vs Dragunov | 13–6 | 68.42% |
| Kosho vs Heihachi | 17–2 | 89.47% |
| Kosho vs King | 6–6 | 50.00% |
| Kosho vs Fahkumram | 6–6 | 50.00% |
| Kosho vs Yoshimitsu | 10–1 | 90.91% |
| Kosho vs Lars | 8–3 | 72.73% |
| Kosho vs Reina | 9–2 | 81.82% |
| Kosho vs Steve | 10–0 | 100.00% |
| Kosho vs Feng | 7–3 | 70.00% |
| Kosho vs Lee | 6–4 | 60.00% |
| Kosho vs Jun | 7–3 | 70.00% |
| Kosho vs Lidia | 8–2 | 80.00% |
| Kosho vs Paul | 6–3 | 66.67% |
| Kosho vs Lili | 9–0 | 100.00% |
| Kosho vs Nina | 6–2 | 75.00% |
| Kosho vs Hwoarang | 4–3 | 57.14% |
| Kosho vs Asuka | 5–2 | 71.43% |
| Kosho vs Victor | 2–5 | 28.57% |
| Kosho vs Leroy | 2–4 | 33.33% |
| Kosho vs Raven | 4–2 | 66.67% |
| Kosho vs Eddy | 4–2 | 66.67% |
| Kosho vs Law | 2–3 | 40.00% |
| Kosho vs Xiaoyu | 0–4 | 0.00% |
| Kosho vs Leo | 4–0 | 100.00% |
| Kosho vs Bryan | 2–1 | 66.67% |
| Kosho vs Zafina | 2–1 | 66.67% |
| Kosho vs Azucena | 3–0 | 100.00% |
| Kosho vs Miary Zo | 0–3 | 0.00% |
| Kosho vs Jack-8 | 1–0 | 100.00% |
| Kosho vs Alisa | 1–0 | 100.00% |
| Kosho vs Claudio | 1–0 | 100.00% |
| Kosho vs Kuma | 1–0 | 100.00% |
| Kosho vs Clive | 1–0 | 100.00% |
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.