Head to head
Simon Kellum vs Emil Lazaryev
Two careers, 43 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 Emil Lazaryev (United States) have met in 43 rounds across 4 competitions since 2023. Counting every round where both finished with a result, Simon Kellum leads Emil Lazaryev: 39 finishes in front to 4.
On personal bests the split is just as plain: across 15 shared events, Simon Kellum holds the faster single in 14, Emil Lazaryev in 1.
Personal bests, side by side
faster single in bold| Event | Simon Kellum single | average | Emil Lazaryev single | average |
|---|---|---|---|---|
| 3×3 | 4.91 | 7.06 | 6.27 | 7.64 |
| 2×2 | 0.71 | 1.44 | 1.15 | 2.02 |
| 4×4 | 29.24 | 35.27 | 32.99 | 38.53 |
| 5×5 | 55.69 | 1:04.66 | 1:10.44 | 1:17.73 |
| 6×6 | 1:53.03 | 2:06.17 | 2:04.83 | 2:12.91 |
| 7×7 | 2:57.72 | 3:15.06 | 4:15.46 | 4:26.76 |
| 3×3 blindfolded | 39.08 | 1:02.97 | 1:20.01 | 2:10.61 |
| 3×3 Fewest Moves | 19 moves | 20.67 | 39 moves | 44.00 |
| 3×3 one-handed | 8.49 | 11.90 | 13.33 | 17.69 |
| Clock | 4.00 | 4.88 | 3.91 | 5.01 |
| Megaminx | 39.37 | 45.94 | 50.90 | 56.61 |
| Pyraminx | 0.73 | 1.53 | 1.03 | 2.95 |
| Skewb | 0.85 | 1.71 | 2.32 | 4.24 |
| Square-1 | 6.65 | 10.13 | 11.28 | 17.93 |
| 3×3 Multi-Blind | 10 of 12 cubes · 56:45 | — | 2 of 4 cubes · 24:41 | — |
Year by year
every meeting, 43 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Simon Kellum | Emil Lazaryev | ahead |
|---|---|---|---|---|---|---|
| 2026 | Rubik's WCA North American Championship 2026 | 2×2 | First round | 2.36 | 2.54 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | 2×2 | Second round | 2.65 | 2.51 | Emil Lazaryev |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | Second round | 7.60 | 9.80 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | First round | 8.63 | 8.20 | Emil Lazaryev |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 one-handed | First round | 12.94 | 22.31 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | First round | 36.71 | 45.35 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | Clock | First round | 6.01 | 6.70 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | Pyraminx | First round | 2.10 | 4.34 | Simon Kellum |
| 2026 | Rubik's WCA North American Championship 2026 | Skewb | First round | 2.89 | 5.19 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 2.95 | 2.99 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 9.81 | 10.46 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | First round | 13.76 | 32.15 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 37.70 | 41.35 | Simon Kellum |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 1:09.99 | 1:25.40 | Simon Kellum |
Full careers: Simon Kellum · Emil Lazaryev. 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.