| Janemba vs Bryan | 108–119 | 47.58% |
| Janemba vs King | 80–105 | 43.24% |
| Janemba vs Jin | 104–62 | 62.65% |
| Janemba vs Kazuya | 97–64 | 60.25% |
| Janemba vs Steve | 73–83 | 46.79% |
| Janemba vs Hwoarang | 66–52 | 55.93% |
| Janemba vs Dragunov | 69–46 | 60.00% |
| Janemba vs Paul | 48–60 | 44.44% |
| Janemba vs Law | 51–54 | 48.57% |
| Janemba vs Nina | 53–52 | 50.48% |
| Janemba vs Yoshimitsu | 43–60 | 41.75% |
| Janemba vs Lili | 43–51 | 45.74% |
| Janemba vs Armor King | 35–54 | 39.33% |
| Janemba vs Fahkumram | 24–57 | 29.63% |
| Janemba vs Lee | 39–39 | 50.00% |
| Janemba vs Heihachi | 36–34 | 51.43% |
| Janemba vs Xiaoyu | 36–25 | 59.02% |
| Janemba vs Claudio | 37–24 | 60.66% |
| Janemba vs Devil Jin | 21–37 | 36.21% |
| Janemba vs Lars | 20–30 | 40.00% |
| Janemba vs Asuka | 20–28 | 41.67% |
| Janemba vs Leroy | 26–21 | 55.32% |
| Janemba vs Jun | 27–18 | 60.00% |
| Janemba vs Reina | 18–25 | 41.86% |
| Janemba vs Feng | 21–20 | 51.22% |
| Janemba vs Alisa | 23–17 | 57.50% |
| Janemba vs Clive | 19–18 | 51.35% |
| Janemba vs Kuma | 11–24 | 31.43% |
| Janemba vs Lidia | 17–17 | 50.00% |
| Janemba vs Victor | 19–13 | 59.38% |
| Janemba vs Eddy | 21–11 | 65.62% |
| Janemba vs Azucena | 13–16 | 44.83% |
| Janemba vs Raven | 14–15 | 48.28% |
| Janemba vs Anna | 4–23 | 14.81% |
| Janemba vs Leo | 12–14 | 46.15% |
| Janemba vs Shaheen | 6–12 | 33.33% |
| Janemba vs Jack-8 | 10–5 | 66.67% |
| Janemba vs Miary Zo | 9–6 | 60.00% |
| Janemba vs Panda | 4–4 | 50.00% |
| Janemba vs Zafina | 5–3 | 62.50% |
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.