| Siphon vs Reina | 4–15 | 21.05% |
| Siphon vs Jin | 5–11 | 31.25% |
| Siphon vs Dragunov | 7–9 | 43.75% |
| Siphon vs King | 4–10 | 28.57% |
| Siphon vs Kazuya | 4–10 | 28.57% |
| Siphon vs Steve | 9–5 | 64.29% |
| Siphon vs Heihachi | 6–8 | 42.86% |
| Siphon vs Alisa | 7–6 | 53.85% |
| Siphon vs Azucena | 7–6 | 53.85% |
| Siphon vs Law | 3–9 | 25.00% |
| Siphon vs Hwoarang | 6–3 | 66.67% |
| Siphon vs Claudio | 0–8 | 0.00% |
| Siphon vs Lee | 4–4 | 50.00% |
| Siphon vs Eddy | 3–4 | 42.86% |
| Siphon vs Asuka | 1–5 | 16.67% |
| Siphon vs Lars | 1–5 | 16.67% |
| Siphon vs Nina | 2–4 | 33.33% |
| Siphon vs Jun | 0–6 | 0.00% |
| Siphon vs Paul | 3–2 | 60.00% |
| Siphon vs Yoshimitsu | 1–4 | 20.00% |
| Siphon vs Devil Jin | 3–2 | 60.00% |
| Siphon vs Lili | 1–4 | 20.00% |
| Siphon vs Leo | 2–3 | 40.00% |
| Siphon vs Clive | 2–3 | 40.00% |
| Siphon vs Bryan | 0–4 | 0.00% |
| Siphon vs Xiaoyu | 0–3 | 0.00% |
| Siphon vs Jack-8 | 1–2 | 33.33% |
| Siphon vs Kuma | 0–3 | 0.00% |
| Siphon vs Zafina | 2–0 | 100.00% |
| Siphon vs Victor | 0–2 | 0.00% |
| Siphon vs Raven | 1–0 | 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.