Head to head
Jack Pfeifer vs Ari Randers-Pehrson
Two careers, 104 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 Ari Randers-Pehrson (United States) have met in 104 rounds across 9 competitions since 2019. Counting every round where both finished with a result, Jack Pfeifer leads Ari Randers-Pehrson: 61 finishes in front to 43.
On personal bests the split is just as plain: across 14 shared events, Jack Pfeifer holds the faster single in 13, Ari Randers-Pehrson in 1.
Personal bests, side by side
faster single in bold| Event | Jack Pfeifer single | average | Ari Randers-Pehrson single | average |
|---|---|---|---|---|
| 3×3 | 4.84 | 6.15 | 5.08 | 7.25 |
| 2×2 | 0.63 | 1.48 | 1.45 | 2.78 |
| 4×4 | 21.17 | 24.50 | 19.48 | 22.49 |
| 5×5 | 38.13 | 42.47 | 42.02 | 45.89 |
| 6×6 | 1:08.61 | 1:12.44 | 1:23.96 | 1:31.36 |
| 7×7 | 1:41.75 | 1:46.70 | 2:18.84 | 2:31.92 |
| 3×3 blindfolded | 29.52 | 37.46 | 4:31.55 | — |
| 3×3 Fewest Moves | 23 moves | 27.00 | 33 moves | 39.67 |
| 3×3 one-handed | 8.10 | 9.97 | 13.54 | 16.54 |
| Clock | 4.81 | 6.20 | 8.16 | 9.15 |
| Megaminx | 36.72 | 41.15 | 1:12.12 | 1:18.15 |
| Pyraminx | 1.59 | 2.66 | 3.82 | 6.52 |
| Skewb | 1.52 | 2.92 | 2.68 | 5.56 |
| Square-1 | 5.16 | 7.61 | 9.40 | 11.74 |
Year by year
every meeting, 104 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Jack Pfeifer | Ari Randers-Pehrson | ahead |
|---|---|---|---|---|---|---|
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | First round | 7.30 | 8.37 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | Second round | 6.42 | 8.59 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | First round | 26.91 | 22.49 | Ari Randers-Pehrson |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | Second round | 28.37 | 23.49 | Ari Randers-Pehrson |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | Final | 46.41 | 50.38 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | First round | 45.28 | 48.38 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 | Second round | 44.35 | 48.62 | Jack Pfeifer |
| 2026 | Rubik's WCA North American Championship 2026 | 6×6 | First round | 1:20.02 | 1:37.07 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 2.13 | 3.77 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 7.52 | 7.40 | Ari Randers-Pehrson |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | Second round | 7.02 | 8.32 | Jack Pfeifer |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 27.12 | 24.01 | Ari Randers-Pehrson |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | Second round | 26.24 | 25.07 | Ari Randers-Pehrson |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 47.32 | 50.58 | Jack Pfeifer |
Full careers: Jack Pfeifer · Ari Randers-Pehrson. 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.