Head to head
Simon Kellum vs Alwin Rölz
Two careers, 69 shared rounds, one running count. Everything below comes from the official results the two of them posted in the same rounds of the same competitions.
Simon Kellum (United States) and Alwin Rölz (Switzerland) have met in 69 rounds across 5 competitions since 2022. Counting every round where both finished with a result, Alwin Rölz leads Simon Kellum: 34 finishes in front to 33 and 2 ties.
On personal bests the split is just as plain: across 16 shared events, Alwin Rölz holds the faster single in 10, Simon Kellum in 6.
Personal bests, side by side
faster single in bold| Event | Simon Kellum single | average | Alwin Rölz single | average |
|---|---|---|---|---|
| 3×3 | 4.91 | 7.06 | 4.72 | 6.31 |
| 2×2 | 0.71 | 1.44 | 0.59 | 1.51 |
| 4×4 | 29.24 | 35.27 | 20.96 | 24.00 |
| 5×5 | 55.69 | 1:04.66 | 40.07 | 46.22 |
| 6×6 | 1:53.03 | 2:06.17 | 1:17.72 | 1:19.85 |
| 7×7 | 2:57.72 | 3:15.06 | 1:56.17 | 2:07.96 |
| 3×3 blindfolded | 39.08 | 1:02.97 | 40.01 | 55.74 |
| 3×3 Fewest Moves | 19 moves | 20.67 | 26 moves | 29.67 |
| 3×3 one-handed | 8.49 | 11.90 | 7.98 | 10.42 |
| Clock | 4.00 | 4.88 | 3.26 | 4.09 |
| Megaminx | 39.37 | 45.94 | 38.37 | 42.95 |
| Pyraminx | 0.73 | 1.53 | 1.05 | 1.90 |
| Skewb | 0.85 | 1.71 | 1.26 | 2.48 |
| Square-1 | 6.65 | 10.13 | 5.89 | 9.86 |
| 4×4 blindfolded | 7:34.34 | — | 13:05.00 | — |
| 3×3 Multi-Blind | 10 of 12 cubes · 56:45 | — | 3 of 3 cubes · 17:06 | — |
Year by year
every meeting, 69 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Simon Kellum | Alwin Rölz | ahead |
|---|---|---|---|---|---|---|
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 2.95 | 6.52 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 9.81 | 7.49 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 blindfolded | First round | — | — | tie |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | First round | 13.76 | 12.27 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 37.70 | 26.73 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 1:09.99 | 49.25 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | 6×6 | First round | 2:12.40 | 1:37.85 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | First round | 3:32.85 | 2:27.53 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | Clock | First round | 7.80 | 4.73 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | Megaminx | First round | 53.49 | 46.89 | Alwin Rölz |
| 2025 | Rubik's WCA World Championship 2025 | Pyraminx | First round | 2.14 | 2.68 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | Pyraminx | Second round | 1.90 | 3.39 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | Skewb | First round | 2.81 | 5.04 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | Square-1 | First round | 11.19 | 12.62 | Simon Kellum |
Full careers: Simon Kellum · Alwin Rölz. A meeting is a round of one event at one competition where both finished with a counted result. Who finished ahead follows official placing in the round: rounds played to an average are won on the average, best-of rounds on the single.