Head to head
Jack Pfeifer vs Kyeongmin Choi (최경민)
Two careers, 82 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 Kyeongmin Choi (최경민) (Republic of Korea) have met in 82 rounds across 6 competitions since 2018. Counting every round where both finished with a result, Jack Pfeifer leads Kyeongmin Choi (최경민): 46 finishes in front to 36.
On personal bests the split is just as plain: across 17 shared events, Kyeongmin Choi (최경민) holds the faster single in 10, Jack Pfeifer in 7.
Personal bests, side by side
faster single in bold| Event | Jack Pfeifer single | average | Kyeongmin Choi (최경민) single | average |
|---|---|---|---|---|
| 3×3 | 4.84 | 6.15 | 4.72 | 6.21 |
| 2×2 | 0.63 | 1.48 | 0.53 | 1.18 |
| 4×4 | 21.17 | 24.50 | 24.01 | 27.39 |
| 5×5 | 38.13 | 42.47 | 46.62 | 51.90 |
| 6×6 | 1:08.61 | 1:12.44 | 1:34.42 | 1:37.91 |
| 7×7 | 1:41.75 | 1:46.70 | 2:20.09 | 2:35.74 |
| 3×3 blindfolded | 29.52 | 37.46 | 25.48 | 32.52 |
| 3×3 Fewest Moves | 23 moves | 27.00 | 17 moves | 21.00 |
| 3×3 one-handed | 8.10 | 9.97 | 8.69 | 11.49 |
| Clock | 4.81 | 6.20 | 4.93 | 6.00 |
| Megaminx | 36.72 | 41.15 | 25.53 | 28.86 |
| Pyraminx | 1.59 | 2.66 | 1.52 | 2.67 |
| Skewb | 1.52 | 2.92 | 1.20 | 2.35 |
| Square-1 | 5.16 | 7.61 | 5.25 | 7.68 |
| 4×4 blindfolded | 6:47.82 | 7:57.64 | 3:25.02 | 4:05.03 |
| 5×5 blindfolded | 25:03.00 | — | 10:45.00 | 14:57.00 |
| 3×3 Multi-Blind | 8 of 9 cubes · 52:39 | — | 17 of 19 cubes · 58:41 | — |
Year by year
every meeting, 82 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Jack Pfeifer | Kyeongmin Choi (최경민) | ahead |
|---|---|---|---|---|---|---|
| 2026 | FMC World 2026 | 3×3 Fewest Moves | Final | 30 moves | 21.00 | Kyeongmin Choi (최경민) |
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | Second round | 2.94 | 1.82 | Kyeongmin Choi (최경민) |
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 2.13 | 1.43 | Kyeongmin Choi (최경민) |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | Second round | 7.02 | 7.65 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 7.52 | 6.66 | Kyeongmin Choi (최경민) |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | Second round | 12.74 | 13.26 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | First round | 13.07 | 13.43 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 27.12 | 33.45 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 47.32 | 56.31 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | Second round | 48.76 | 59.03 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 6×6 | Second round | 1:26.85 | 1:51.93 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 6×6 | First round | 1:21.82 | 1:45.13 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | First round | 2:01.13 | 2:47.32 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | Second round | 2:05.70 | 2:38.45 | Jack Pfeifer |
Full careers: Jack Pfeifer · Kyeongmin Choi (최경민). 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.