Head to head
Jack Pfeifer vs Ethan Cho
Two careers, 141 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.
Jack Pfeifer (United States) and Ethan Cho (United States) have met in 141 rounds across 11 competitions since 2019. Counting every round where both finished with a result, Jack Pfeifer leads Ethan Cho: 121 finishes in front to 20.
On personal bests the split is just as plain: across 16 shared events, Jack Pfeifer holds the faster single in 14, Ethan Cho in 1.
Personal bests, side by side
faster single in bold| Event | Jack Pfeifer single | average | Ethan Cho single | average |
|---|---|---|---|---|
| 3×3 | 4.84 | 6.15 | 5.78 | 7.53 |
| 2×2 | 0.63 | 1.48 | 1.64 | 2.98 |
| 4×4 | 21.17 | 24.50 | 26.30 | 29.26 |
| 5×5 | 38.13 | 42.47 | 42.22 | 47.82 |
| 6×6 | 1:08.61 | 1:12.44 | 1:10.45 | 1:20.59 |
| 7×7 | 1:41.75 | 1:46.70 | 1:48.58 | 1:54.73 |
| 3×3 blindfolded | 29.52 | 37.46 | 1:14.80 | 2:09.53 |
| 3×3 Fewest Moves | 23 moves | 27.00 | 23 moves | 26.67 |
| 3×3 one-handed | 8.10 | 9.97 | 10.00 | 12.73 |
| Clock | 4.81 | 6.20 | 4.48 | 5.34 |
| Megaminx | 36.72 | 41.15 | 48.51 | 56.43 |
| Pyraminx | 1.59 | 2.66 | 2.61 | 4.72 |
| Skewb | 1.52 | 2.92 | 2.37 | 4.29 |
| Square-1 | 5.16 | 7.61 | 12.79 | 16.88 |
| 4×4 blindfolded | 6:47.82 | 7:57.64 | 15:39.00 | — |
| 3×3 Multi-Blind | 8 of 9 cubes · 52:39 | — | 5 of 6 cubes · 37:43 | — |
Year by year
every meeting, 141 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Jack Pfeifer | Ethan Cho | ahead |
|---|---|---|---|---|---|---|
| 2026 | Rubik's WCA North American Championship 2026 | 2×2 | First round | 1.97 | 3.37 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | Second round | 6.42 | 7.59 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | First round | 7.30 | 9.23 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 one-handed | First round | 12.11 | 18.14 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | Second round | 28.37 | 30.55 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | First round | 26.91 | 30.18 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | Second round | 44.35 | 49.05 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | First round | 45.28 | 54.45 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | Final | 46.41 | 51.90 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 6×6 | First round | 1:20.02 | 1:36.79 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 7×7 | Final | 2:00.55 | 2:02.95 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 7×7 | First round | 1:57.58 | 2:04.29 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | Pyraminx | First round | 4.51 | 5.17 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | Skewb | First round | 4.16 | 8.94 | Jack Pfeifer |
Full careers: Jack Pfeifer · Ethan Cho. 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.