| Kashtels vs Kazuya | 66–50 | 56.90% |
| Kashtels vs Jin | 60–32 | 65.22% |
| Kashtels vs Reina | 59–18 | 76.62% |
| Kashtels vs King | 41–31 | 56.94% |
| Kashtels vs Bryan | 36–34 | 51.43% |
| Kashtels vs Lili | 41–17 | 70.69% |
| Kashtels vs Eddy | 41–16 | 71.93% |
| Kashtels vs Law | 29–26 | 52.73% |
| Kashtels vs Jun | 35–18 | 66.04% |
| Kashtels vs Paul | 32–17 | 65.31% |
| Kashtels vs Hwoarang | 20–28 | 41.67% |
| Kashtels vs Nina | 23–24 | 48.94% |
| Kashtels vs Heihachi | 25–20 | 55.56% |
| Kashtels vs Lee | 25–16 | 60.98% |
| Kashtels vs Dragunov | 27–11 | 71.05% |
| Kashtels vs Leo | 21–17 | 55.26% |
| Kashtels vs Azucena | 19–16 | 54.29% |
| Kashtels vs Steve | 24–9 | 72.73% |
| Kashtels vs Yoshimitsu | 13–15 | 46.43% |
| Kashtels vs Victor | 18–10 | 64.29% |
| Kashtels vs Asuka | 18–9 | 66.67% |
| Kashtels vs Jack-8 | 12–14 | 46.15% |
| Kashtels vs Kuma | 8–18 | 30.77% |
| Kashtels vs Xiaoyu | 14–11 | 56.00% |
| Kashtels vs Devil Jin | 15–10 | 60.00% |
| Kashtels vs Lars | 9–16 | 36.00% |
| Kashtels vs Raven | 15–10 | 60.00% |
| Kashtels vs Anna | 7–9 | 43.75% |
| Kashtels vs Leroy | 5–10 | 33.33% |
| Kashtels vs Lidia | 11–4 | 73.33% |
| Kashtels vs Feng | 9–5 | 64.29% |
| Kashtels vs Claudio | 4–10 | 28.57% |
| Kashtels vs Alisa | 8–2 | 80.00% |
| Kashtels vs Zafina | 6–4 | 60.00% |
| Kashtels vs Panda | 3–3 | 50.00% |
| Kashtels vs Shaheen | 3–0 | 100.00% |
| Kashtels vs Clive | 0–1 | 0.00% |
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.