Name history
| ZUM1 | RKO | |
| The VipeR | |
| ZUM1 | Mon$tro | |
| Mon$tro | |
| Leverless c sur | |
| ZUM1 | Monstro | |
| Monstro |
| ZUM1 | RKO vs Kazuya | 77–89 | 46.39% |
| ZUM1 | RKO vs Jin | 70–75 | 48.28% |
| ZUM1 | RKO vs Law | 72–57 | 55.81% |
| ZUM1 | RKO vs Bryan | 64–64 | 50.00% |
| ZUM1 | RKO vs Hwoarang | 58–69 | 45.67% |
| ZUM1 | RKO vs King | 45–52 | 46.39% |
| ZUM1 | RKO vs Steve | 41–36 | 53.25% |
| ZUM1 | RKO vs Yoshimitsu | 36–40 | 47.37% |
| ZUM1 | RKO vs Paul | 40–34 | 54.05% |
| ZUM1 | RKO vs Reina | 22–42 | 34.38% |
| ZUM1 | RKO vs Dragunov | 33–26 | 55.93% |
| ZUM1 | RKO vs Lars | 17–38 | 30.91% |
| ZUM1 | RKO vs Heihachi | 31–24 | 56.36% |
| ZUM1 | RKO vs Azucena | 32–17 | 65.31% |
| ZUM1 | RKO vs Xiaoyu | 25–19 | 56.82% |
| ZUM1 | RKO vs Lee | 23–21 | 52.27% |
| ZUM1 | RKO vs Leroy | 26–18 | 59.09% |
| ZUM1 | RKO vs Lili | 16–23 | 41.03% |
| ZUM1 | RKO vs Asuka | 19–19 | 50.00% |
| ZUM1 | RKO vs Jun | 22–13 | 62.86% |
| ZUM1 | RKO vs Eddy | 11–24 | 31.43% |
| ZUM1 | RKO vs Devil Jin | 16–18 | 47.06% |
| ZUM1 | RKO vs Armor King | 17–17 | 50.00% |
| ZUM1 | RKO vs Victor | 14–19 | 42.42% |
| ZUM1 | RKO vs Feng | 21–11 | 65.62% |
| ZUM1 | RKO vs Alisa | 18–12 | 60.00% |
| ZUM1 | RKO vs Nina | 16–14 | 53.33% |
| ZUM1 | RKO vs Lidia | 12–12 | 50.00% |
| ZUM1 | RKO vs Fahkumram | 10–6 | 62.50% |
| ZUM1 | RKO vs Jack-8 | 4–9 | 30.77% |
| ZUM1 | RKO vs Anna | 2–11 | 15.38% |
| ZUM1 | RKO vs Claudio | 4–8 | 33.33% |
| ZUM1 | RKO vs Kuma | 4–8 | 33.33% |
| ZUM1 | RKO vs Miary Zo | 8–4 | 66.67% |
| ZUM1 | RKO vs Raven | 4–7 | 36.36% |
| ZUM1 | RKO vs Leo | 3–7 | 30.00% |
| ZUM1 | RKO vs Clive | 3–5 | 37.50% |
| ZUM1 | RKO vs Zafina | 2–2 | 50.00% |
| ZUM1 | RKO vs Shaheen | 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.