| SION_NINJABOY04 vs King | 81–90 | 47.37% |
| SION_NINJABOY04 vs Kazuya | 73–74 | 49.66% |
| SION_NINJABOY04 vs Law | 60–82 | 42.25% |
| SION_NINJABOY04 vs Jin | 73–60 | 54.89% |
| SION_NINJABOY04 vs Bryan | 50–71 | 41.32% |
| SION_NINJABOY04 vs Steve | 52–57 | 47.71% |
| SION_NINJABOY04 vs Dragunov | 51–49 | 51.00% |
| SION_NINJABOY04 vs Hwoarang | 54–43 | 55.67% |
| SION_NINJABOY04 vs Azucena | 40–53 | 43.01% |
| SION_NINJABOY04 vs Heihachi | 42–50 | 45.65% |
| SION_NINJABOY04 vs Reina | 46–41 | 52.87% |
| SION_NINJABOY04 vs Jun | 44–40 | 52.38% |
| SION_NINJABOY04 vs Lili | 47–36 | 56.63% |
| SION_NINJABOY04 vs Anna | 41–42 | 49.40% |
| SION_NINJABOY04 vs Fahkumram | 36–43 | 45.57% |
| SION_NINJABOY04 vs Asuka | 45–32 | 58.44% |
| SION_NINJABOY04 vs Yoshimitsu | 33–42 | 44.00% |
| SION_NINJABOY04 vs Paul | 35–36 | 49.30% |
| SION_NINJABOY04 vs Xiaoyu | 34–37 | 47.89% |
| SION_NINJABOY04 vs Eddy | 35–33 | 51.47% |
| SION_NINJABOY04 vs Lars | 38–29 | 56.72% |
| SION_NINJABOY04 vs Clive | 36–28 | 56.25% |
| SION_NINJABOY04 vs Nina | 26–30 | 46.43% |
| SION_NINJABOY04 vs Lidia | 21–28 | 42.86% |
| SION_NINJABOY04 vs Leo | 25–22 | 53.19% |
| SION_NINJABOY04 vs Victor | 32–15 | 68.09% |
| SION_NINJABOY04 vs Lee | 23–23 | 50.00% |
| SION_NINJABOY04 vs Raven | 24–21 | 53.33% |
| SION_NINJABOY04 vs Feng | 18–26 | 40.91% |
| SION_NINJABOY04 vs Leroy | 15–29 | 34.09% |
| SION_NINJABOY04 vs Alisa | 21–18 | 53.85% |
| SION_NINJABOY04 vs Devil Jin | 24–13 | 64.86% |
| SION_NINJABOY04 vs Jack-8 | 16–18 | 47.06% |
| SION_NINJABOY04 vs Claudio | 15–10 | 60.00% |
| SION_NINJABOY04 vs Shaheen | 7–11 | 38.89% |
| SION_NINJABOY04 vs Kuma | 4–12 | 25.00% |
| SION_NINJABOY04 vs Zafina | 6–10 | 37.50% |
| SION_NINJABOY04 vs Armor King | 4–10 | 28.57% |
| SION_NINJABOY04 vs Panda | 0–3 | 0.00% |
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.