Head to head
Zeke Mackay vs Simon Kellum
Two careers, 1,536 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.
Zeke Mackay (United States) and Simon Kellum (United States) have met in 1,536 rounds across 142 competitions since 2016. Counting every round where both finished with a result, Zeke Mackay leads Simon Kellum: 1045 finishes in front to 474 and 17 ties.
On personal bests the split is just as plain: across 17 shared events, Zeke Mackay holds the faster single in 13, Simon Kellum in 3.
Personal bests, side by side
faster single in bold| Event | Zeke Mackay single | average | Simon Kellum single | average |
|---|---|---|---|---|
| 3×3 | 4.36 | 5.93 | 4.91 | 7.06 |
| 2×2 | 0.69 | 1.59 | 0.71 | 1.44 |
| 4×4 | 21.90 | 25.64 | 29.24 | 35.27 |
| 5×5 | 45.20 | 48.70 | 55.69 | 1:04.66 |
| 6×6 | 1:27.55 | 1:33.29 | 1:53.03 | 2:06.17 |
| 7×7 | 2:04.04 | 2:16.69 | 2:57.72 | 3:15.06 |
| 3×3 blindfolded | 30.52 | 42.84 | 39.08 | 1:02.97 |
| 3×3 Fewest Moves | 19 moves | 21.00 | 19 moves | 20.67 |
| 3×3 one-handed | 9.25 | 10.83 | 8.49 | 11.90 |
| Clock | 3.60 | 4.88 | 4.00 | 4.88 |
| Megaminx | 26.87 | 28.57 | 39.37 | 45.94 |
| Pyraminx | 1.16 | 2.08 | 0.73 | 1.53 |
| Skewb | 1.20 | 2.49 | 0.85 | 1.71 |
| Square-1 | 5.54 | 7.83 | 6.65 | 10.13 |
| 4×4 blindfolded | 2:53.51 | 3:54.47 | 7:34.34 | — |
| 5×5 blindfolded | 7:46.43 | 13:09.00 | 19:52.00 | — |
| 3×3 Multi-Blind | 20 of 24 cubes · 59:44 | — | 10 of 12 cubes · 56:45 | — |
Year by year
every meeting, 1,536 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Zeke Mackay | Simon Kellum | ahead |
|---|---|---|---|---|---|---|
| 2026 | Ohio Championship 2026 | 2×2 | Final | 2.07 | 3.66 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 2×2 | Second round | 1.79 | 2.65 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 2×2 | First round | 2.51 | 2.03 | Simon Kellum |
| 2026 | Ohio Championship 2026 | 3×3 | First round | 7.09 | 10.33 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 | Second round | 6.97 | 8.36 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 | Semi Final | 7.02 | 7.90 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 | Final | 7.09 | 9.40 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 one-handed | First round | 12.93 | 15.70 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 one-handed | Final | 11.28 | 16.48 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 3×3 one-handed | Second round | 12.67 | 14.70 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 4×4 | Final | 28.80 | 38.10 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | 4×4 | First round | 29.69 | 41.44 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | Megaminx | First round | 29.51 | 52.43 | Zeke Mackay |
| 2026 | Ohio Championship 2026 | Megaminx | Final | 30.06 | 55.18 | Zeke Mackay |
Full careers: Zeke Mackay · Simon Kellum. 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.