| Kay2daOne vs Kazuya | 42–32 | 56.76% |
| Kay2daOne vs Jin | 27–45 | 37.50% |
| Kay2daOne vs Reina | 37–30 | 55.22% |
| Kay2daOne vs Lili | 24–31 | 43.64% |
| Kay2daOne vs Hwoarang | 31–20 | 60.78% |
| Kay2daOne vs King | 19–30 | 38.78% |
| Kay2daOne vs Bryan | 24–22 | 52.17% |
| Kay2daOne vs Eddy | 20–22 | 47.62% |
| Kay2daOne vs Steve | 20–19 | 51.28% |
| Kay2daOne vs Jun | 22–16 | 57.89% |
| Kay2daOne vs Law | 12–22 | 35.29% |
| Kay2daOne vs Yoshimitsu | 15–18 | 45.45% |
| Kay2daOne vs Lee | 16–17 | 48.48% |
| Kay2daOne vs Paul | 11–21 | 34.38% |
| Kay2daOne vs Asuka | 16–14 | 53.33% |
| Kay2daOne vs Devil Jin | 9–20 | 31.03% |
| Kay2daOne vs Feng | 11–18 | 37.93% |
| Kay2daOne vs Lars | 20–9 | 68.97% |
| Kay2daOne vs Heihachi | 15–11 | 57.69% |
| Kay2daOne vs Clive | 8–15 | 34.78% |
| Kay2daOne vs Leroy | 10–11 | 47.62% |
| Kay2daOne vs Dragunov | 3–17 | 15.00% |
| Kay2daOne vs Raven | 10–10 | 50.00% |
| Kay2daOne vs Claudio | 11–8 | 57.89% |
| Kay2daOne vs Lidia | 8–11 | 42.11% |
| Kay2daOne vs Nina | 4–14 | 22.22% |
| Kay2daOne vs Azucena | 9–7 | 56.25% |
| Kay2daOne vs Kuma | 3–10 | 23.08% |
| Kay2daOne vs Victor | 8–5 | 61.54% |
| Kay2daOne vs Fahkumram | 5–8 | 38.46% |
| Kay2daOne vs Shaheen | 5–7 | 41.67% |
| Kay2daOne vs Xiaoyu | 6–5 | 54.55% |
| Kay2daOne vs Jack-8 | 4–7 | 36.36% |
| Kay2daOne vs Miary Zo | 5–6 | 45.45% |
| Kay2daOne vs Alisa | 5–5 | 50.00% |
| Kay2daOne vs Leo | 2–6 | 25.00% |
| Kay2daOne vs Zafina | 4–4 | 50.00% |
| Kay2daOne vs Panda | 2–5 | 28.57% |
| Kay2daOne vs Armor King | 1–2 | 33.33% |
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.