| Kaster vs Steve | 40–37 | 51.95% |
| Kaster vs Reina | 30–39 | 43.48% |
| Kaster vs Clive | 27–40 | 40.30% |
| Kaster vs King | 23–37 | 38.33% |
| Kaster vs Kazuya | 23–33 | 41.07% |
| Kaster vs Jin | 24–25 | 48.98% |
| Kaster vs Dragunov | 15–28 | 34.88% |
| Kaster vs Lili | 18–17 | 51.43% |
| Kaster vs Eddy | 11–23 | 32.35% |
| Kaster vs Asuka | 14–17 | 45.16% |
| Kaster vs Jun | 13–12 | 52.00% |
| Kaster vs Victor | 9–16 | 36.00% |
| Kaster vs Feng | 5–17 | 22.73% |
| Kaster vs Azucena | 8–14 | 36.36% |
| Kaster vs Hwoarang | 9–10 | 47.37% |
| Kaster vs Xiaoyu | 10–8 | 55.56% |
| Kaster vs Law | 3–13 | 18.75% |
| Kaster vs Yoshimitsu | 6–10 | 37.50% |
| Kaster vs Bryan | 9–7 | 56.25% |
| Kaster vs Devil Jin | 5–10 | 33.33% |
| Kaster vs Leo | 4–11 | 26.67% |
| Kaster vs Kuma | 6–9 | 40.00% |
| Kaster vs Jack-8 | 4–9 | 30.77% |
| Kaster vs Paul | 5–7 | 41.67% |
| Kaster vs Nina | 6–6 | 50.00% |
| Kaster vs Raven | 9–3 | 75.00% |
| Kaster vs Lidia | 7–5 | 58.33% |
| Kaster vs Heihachi | 3–9 | 25.00% |
| Kaster vs Shaheen | 4–5 | 44.44% |
| Kaster vs Leroy | 4–4 | 50.00% |
| Kaster vs Lars | 4–3 | 57.14% |
| Kaster vs Alisa | 2–5 | 28.57% |
| Kaster vs Claudio | 1–5 | 16.67% |
| Kaster vs Lee | 3–3 | 50.00% |
| Kaster vs Zafina | 3–0 | 100.00% |
| Kaster vs Panda | 1–1 | 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.