| SLS_KOSH 148 vs King | 32–51 | 38.55% |
| SLS_KOSH 148 vs Hwoarang | 28–44 | 38.89% |
| SLS_KOSH 148 vs Jin | 28–42–1 | 40.00% |
| SLS_KOSH 148 vs Steve | 25–37 | 40.32% |
| SLS_KOSH 148 vs Law | 23–37 | 38.33% |
| SLS_KOSH 148 vs Armor King | 20–40 | 33.33% |
| SLS_KOSH 148 vs Eddy | 11–34 | 24.44% |
| SLS_KOSH 148 vs Jun | 15–28 | 34.88% |
| SLS_KOSH 148 vs Bryan | 19–23 | 45.24% |
| SLS_KOSH 148 vs Kazuya | 12–30 | 28.57% |
| SLS_KOSH 148 vs Nina | 18–18 | 50.00% |
| SLS_KOSH 148 vs Reina | 17–19 | 47.22% |
| SLS_KOSH 148 vs Lili | 9–26 | 25.71% |
| SLS_KOSH 148 vs Lars | 11–22 | 33.33% |
| SLS_KOSH 148 vs Heihachi | 14–19 | 42.42% |
| SLS_KOSH 148 vs Azucena | 14–13 | 51.85% |
| SLS_KOSH 148 vs Fahkumram | 10–17 | 37.04% |
| SLS_KOSH 148 vs Paul | 17–9 | 65.38% |
| SLS_KOSH 148 vs Dragunov | 7–17 | 29.17% |
| SLS_KOSH 148 vs Devil Jin | 10–13 | 43.48% |
| SLS_KOSH 148 vs Victor | 4–17 | 19.05% |
| SLS_KOSH 148 vs Clive | 8–11 | 42.11% |
| SLS_KOSH 148 vs Xiaoyu | 10–7 | 58.82% |
| SLS_KOSH 148 vs Alisa | 5–12 | 29.41% |
| SLS_KOSH 148 vs Claudio | 10–7 | 58.82% |
| SLS_KOSH 148 vs Yoshimitsu | 5–11 | 31.25% |
| SLS_KOSH 148 vs Anna | 5–11 | 31.25% |
| SLS_KOSH 148 vs Leroy | 9–6 | 60.00% |
| SLS_KOSH 148 vs Feng | 6–8 | 42.86% |
| SLS_KOSH 148 vs Asuka | 4–7 | 36.36% |
| SLS_KOSH 148 vs Lee | 4–7 | 36.36% |
| SLS_KOSH 148 vs Jack-8 | 4–6 | 40.00% |
| SLS_KOSH 148 vs Raven | 2–6 | 25.00% |
| SLS_KOSH 148 vs Kuma | 1–6 | 14.29% |
| SLS_KOSH 148 vs Leo | 2–4 | 33.33% |
| SLS_KOSH 148 vs Lidia | 2–4 | 33.33% |
| SLS_KOSH 148 vs Shaheen | 1–4 | 20.00% |
| SLS_KOSH 148 vs Panda | 2–1 | 66.67% |
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.