| ItsYaBoiiJeff vs Armor King | 40–73 | 35.40% |
| ItsYaBoiiJeff vs King | 32–44 | 42.11% |
| ItsYaBoiiJeff vs Kazuya | 17–59 | 22.37% |
| ItsYaBoiiJeff vs Steve | 34–41 | 45.33% |
| ItsYaBoiiJeff vs Jin | 30–39 | 43.48% |
| ItsYaBoiiJeff vs Reina | 32–23 | 58.18% |
| ItsYaBoiiJeff vs Law | 19–31 | 38.00% |
| ItsYaBoiiJeff vs Azucena | 17–29 | 36.96% |
| ItsYaBoiiJeff vs Hwoarang | 10–34 | 22.73% |
| ItsYaBoiiJeff vs Heihachi | 18–26 | 40.91% |
| ItsYaBoiiJeff vs Lee | 17–25 | 40.48% |
| ItsYaBoiiJeff vs Lili | 18–22 | 45.00% |
| ItsYaBoiiJeff vs Eddy | 13–23 | 36.11% |
| ItsYaBoiiJeff vs Fahkumram | 14–22 | 38.89% |
| ItsYaBoiiJeff vs Bryan | 14–19 | 42.42% |
| ItsYaBoiiJeff vs Dragunov | 10–20 | 33.33% |
| ItsYaBoiiJeff vs Raven | 13–17 | 43.33% |
| ItsYaBoiiJeff vs Anna | 12–17 | 41.38% |
| ItsYaBoiiJeff vs Asuka | 17–11 | 60.71% |
| ItsYaBoiiJeff vs Alisa | 11–17 | 39.29% |
| ItsYaBoiiJeff vs Clive | 14–14 | 50.00% |
| ItsYaBoiiJeff vs Nina | 11–14 | 44.00% |
| ItsYaBoiiJeff vs Jun | 9–16 | 36.00% |
| ItsYaBoiiJeff vs Feng | 7–16 | 30.43% |
| ItsYaBoiiJeff vs Yoshimitsu | 13–8 | 61.90% |
| ItsYaBoiiJeff vs Xiaoyu | 12–9 | 57.14% |
| ItsYaBoiiJeff vs Devil Jin | 11–8 | 57.89% |
| ItsYaBoiiJeff vs Leroy | 7–12 | 36.84% |
| ItsYaBoiiJeff vs Victor | 9–9 | 50.00% |
| ItsYaBoiiJeff vs Miary Zo | 9–7 | 56.25% |
| ItsYaBoiiJeff vs Paul | 5–10 | 33.33% |
| ItsYaBoiiJeff vs Jack-8 | 8–6 | 57.14% |
| ItsYaBoiiJeff vs Shaheen | 3–9 | 25.00% |
| ItsYaBoiiJeff vs Lars | 4–7 | 36.36% |
| ItsYaBoiiJeff vs Zafina | 5–6 | 45.45% |
| ItsYaBoiiJeff vs Leo | 1–9 | 10.00% |
| ItsYaBoiiJeff vs Lidia | 6–4 | 60.00% |
| ItsYaBoiiJeff vs Kuma | 6–1 | 85.71% |
| ItsYaBoiiJeff vs Claudio | 2–4 | 33.33% |
| ItsYaBoiiJeff vs Panda | 1–4 | 20.00% |
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.