| Sai-Kun vs Reina | 15–13 | 53.57% |
| Sai-Kun vs Kazuya | 11–15 | 42.31% |
| Sai-Kun vs Dragunov | 10–13 | 43.48% |
| Sai-Kun vs King | 12–10 | 54.55% |
| Sai-Kun vs Jun | 11–11 | 50.00% |
| Sai-Kun vs Hwoarang | 9–11 | 45.00% |
| Sai-Kun vs Jin | 13–7 | 65.00% |
| Sai-Kun vs Lili | 8–12 | 40.00% |
| Sai-Kun vs Paul | 8–9 | 47.06% |
| Sai-Kun vs Feng | 7–10 | 41.18% |
| Sai-Kun vs Azucena | 9–8 | 52.94% |
| Sai-Kun vs Steve | 11–4 | 73.33% |
| Sai-Kun vs Eddy | 5–9 | 35.71% |
| Sai-Kun vs Yoshimitsu | 7–6 | 53.85% |
| Sai-Kun vs Law | 0–12 | 0.00% |
| Sai-Kun vs Devil Jin | 8–3 | 72.73% |
| Sai-Kun vs Bryan | 3–7 | 30.00% |
| Sai-Kun vs Asuka | 5–5 | 50.00% |
| Sai-Kun vs Claudio | 1–8 | 11.11% |
| Sai-Kun vs Xiaoyu | 3–5 | 37.50% |
| Sai-Kun vs Jack-8 | 6–2 | 75.00% |
| Sai-Kun vs Leo | 5–3 | 62.50% |
| Sai-Kun vs Lee | 1–6 | 14.29% |
| Sai-Kun vs Victor | 3–4 | 42.86% |
| Sai-Kun vs Alisa | 2–3 | 40.00% |
| Sai-Kun vs Nina | 2–3 | 40.00% |
| Sai-Kun vs Lars | 2–2 | 50.00% |
| Sai-Kun vs Raven | 1–2 | 33.33% |
| Sai-Kun vs Leroy | 2–0 | 100.00% |
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.