| Klaatu vs Jin | 32–31 | 50.79% |
| Klaatu vs Bryan | 36–27 | 57.14% |
| Klaatu vs Hwoarang | 42–20 | 67.74% |
| Klaatu vs King | 38–17 | 69.09% |
| Klaatu vs Kazuya | 31–18 | 63.27% |
| Klaatu vs Paul | 32–15 | 68.09% |
| Klaatu vs Steve | 26–20 | 56.52% |
| Klaatu vs Lili | 27–19 | 58.70% |
| Klaatu vs Reina | 18–28 | 39.13% |
| Klaatu vs Lidia | 28–18 | 60.87% |
| Klaatu vs Law | 23–19 | 54.76% |
| Klaatu vs Lee | 22–18 | 55.00% |
| Klaatu vs Yoshimitsu | 22–15 | 59.46% |
| Klaatu vs Dragunov | 18–14 | 56.25% |
| Klaatu vs Lars | 13–19 | 40.62% |
| Klaatu vs Xiaoyu | 12–14 | 46.15% |
| Klaatu vs Nina | 13–12 | 52.00% |
| Klaatu vs Feng | 13–10 | 56.52% |
| Klaatu vs Devil Jin | 8–14 | 36.36% |
| Klaatu vs Asuka | 7–14 | 33.33% |
| Klaatu vs Alisa | 13–8 | 61.90% |
| Klaatu vs Victor | 11–8 | 57.89% |
| Klaatu vs Claudio | 8–10 | 44.44% |
| Klaatu vs Azucena | 13–5 | 72.22% |
| Klaatu vs Jun | 8–7 | 53.33% |
| Klaatu vs Eddy | 9–6 | 60.00% |
| Klaatu vs Leo | 10–4 | 71.43% |
| Klaatu vs Kuma | 10–4 | 71.43% |
| Klaatu vs Shaheen | 4–6 | 40.00% |
| Klaatu vs Raven | 5–5 | 50.00% |
| Klaatu vs Jack-8 | 4–5 | 44.44% |
| Klaatu vs Panda | 4–5 | 44.44% |
| Klaatu vs Leroy | 2–6 | 25.00% |
| Klaatu vs Zafina | 3–4 | 42.86% |
| Klaatu vs Heihachi | 2–1 | 66.67% |
| Klaatu vs Clive | 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.