| Sihyeon vs Reina | 24–18 | 57.14% |
| Sihyeon vs Jin | 12–19 | 38.71% |
| Sihyeon vs Kazuya | 11–19 | 36.67% |
| Sihyeon vs Dragunov | 16–14 | 53.33% |
| Sihyeon vs Bryan | 10–19 | 34.48% |
| Sihyeon vs King | 11–16 | 40.74% |
| Sihyeon vs Jun | 11–14 | 44.00% |
| Sihyeon vs Steve | 12–11 | 52.17% |
| Sihyeon vs Lili | 10–11 | 47.62% |
| Sihyeon vs Heihachi | 7–12 | 36.84% |
| Sihyeon vs Hwoarang | 9–6 | 60.00% |
| Sihyeon vs Xiaoyu | 3–12 | 20.00% |
| Sihyeon vs Victor | 8–7 | 53.33% |
| Sihyeon vs Paul | 4–9 | 30.77% |
| Sihyeon vs Asuka | 4–9 | 30.77% |
| Sihyeon vs Nina | 3–8 | 27.27% |
| Sihyeon vs Jack-8 | 5–5 | 50.00% |
| Sihyeon vs Lidia | 6–3 | 66.67% |
| Sihyeon vs Clive | 3–5 | 37.50% |
| Sihyeon vs Yoshimitsu | 6–1 | 85.71% |
| Sihyeon vs Lars | 2–5 | 28.57% |
| Sihyeon vs Law | 4–2 | 66.67% |
| Sihyeon vs Feng | 1–5 | 16.67% |
| Sihyeon vs Alisa | 2–4 | 33.33% |
| Sihyeon vs Zafina | 2–3 | 40.00% |
| Sihyeon vs Eddy | 2–3 | 40.00% |
| Sihyeon vs Devil Jin | 1–3 | 25.00% |
| Sihyeon vs Claudio | 1–3 | 25.00% |
| Sihyeon vs Kuma | 1–3 | 25.00% |
| Sihyeon vs Leo | 0–3 | 0.00% |
| Sihyeon vs Lee | 1–2 | 33.33% |
| Sihyeon vs Azucena | 1–2 | 33.33% |
| Sihyeon vs Raven | 0–3 | 0.00% |
| Sihyeon vs Anna | 1–2 | 33.33% |
| Sihyeon vs Shaheen | 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.