In the past year (2023), Jack Pfeifer competed in 12 competitions and 159 rounds across 17 events, from Jan 7th to Dec 17th.
Podiums
He has been on the podium 44 times across 14 events, including 20 golds, 15 silvers, and 9 bronzes.
| Event | Gold | Silver | Bronze |
| 6x6x6 Cube | 5 | 1 | |
| 5x5x5 Cube | 4 | | 1 |
| 7x7x7 Cube | 3 | 2 | |
| 3x3x3 Blindfolded | 2 | 1 | 1 |
| 3x3x3 Cube | 1 | 3 | |
| 4x4x4 Cube | 1 | 2 | 1 |
| Megaminx | 1 | 2 | 1 |
| Square-1 | 1 | 1 | 1 |
| 2x2x2 Cube | 1 | | 2 |
| 3x3x3 Multi-Blind | 1 | | |
| 3x3x3 One-Handed | | 2 | |
| 4x4x4 Blindfolded | | 1 | |
| Skewb | | | 1 |
| 5x5x5 Blindfolded | | | 1 |
Solves/Attempts
He attempted 717 solves and completed 686.
| Event | Solves | Attempts |
| 3x3x3 Cube | 150 | 150 |
| Pyraminx | 75 | 75 |
| 2x2x2 Cube | 70 | 70 |
| 3x3x3 One-Handed | 59 | 60 |
| 4x4x4 Cube | 55 | 55 |
| 5x5x5 Cube | 50 | 50 |
| Megaminx | 45 | 45 |
| Clock | 36 | 40 |
| Square-1 | 35 | 35 |
| 6x6x6 Cube | 32 | 33 |
| Skewb | 30 | 30 |
| 7x7x7 Cube | 24 | 24 |
| 3x3x3 Blindfolded | 18 | 30 |
| 3x3x3 Fewest Moves | 3 | 6 |
| 4x4x4 Blindfolded | 2 | 9 |
| 5x5x5 Blindfolded | 1 | 4 |
| 3x3x3 Multi-Blind | 1 | 1 |
Personal Bests
He broke his personal best 27 times across 13 events, including 15 singles and 12 averages.
| Event | Times | Single | Average |
| 6x6x6 Cube | 6 | 3 | 3 |
| 3x3x3 Blindfolded | 5 | 4 | 1 |
| Megaminx | 4 | 1 | 3 |
| 5x5x5 Cube | 2 | 1 | 1 |
| 7x7x7 Cube | 2 | 1 | 1 |
| 3x3x3 Cube | 1 | 0 | 1 |
| 2x2x2 Cube | 1 | 0 | 1 |
| 4x4x4 Cube | 1 | 0 | 1 |
| 3x3x3 One-Handed | 1 | 1 | 0 |
| Pyraminx | 1 | 1 | 0 |
| Square-1 | 1 | 1 | 0 |
| 5x5x5 Blindfolded | 1 | 1 | 0 |
| 3x3x3 Multi-Blind | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2022 | 2023 | Improvement |
| 3x3x3 Multi-Blind | 6/7 45:36 | 8/9 52:39 | 2 (40.00%) |
| 3x3x3 Blindfolded | 39.38 | 29.52 | 9.86 (33.40%) |
| 6x6x6 Cube | 1:32.41 | 1:22.98 | 9.43 (11.36%) |
| Pyraminx | 1.76 | 1.59 | 0.17 (10.69%) |
| 5x5x5 Cube | 49.28 | 44.84 | 4.44 (9.90%) |
| Megaminx | 43.13 | 39.68 | 3.45 (8.69%) |
| Square-1 | 5.86 | 5.52 | 0.34 (6.16%) |
| 7x7x7 Cube | 2:08.66 | 2:06.49 | 2.17 (1.72%) |
| 3x3x3 One-Handed | 10.35 | 10.24 | 0.11 (1.07%) |
| 5x5x5 Blindfolded | - | 25:03.00 | - |
Improvements of Average
| Event | ≤2022 | 2023 | Improvement |
| 3x3x3 Blindfolded | 58.33 | 37.46 | 20.87 (55.71%) |
| 2x2x2 Cube | 1.80 | 1.48 | 0.32 (21.62%) |
| 3x3x3 Cube | 7.31 | 6.43 | 0.88 (13.69%) |
| Megaminx | 48.86 | 43.22 | 5.64 (13.05%) |
| 4x4x4 Cube | 28.63 | 26.31 | 2.32 (8.82%) |
| 5x5x5 Cube | 54.49 | 50.47 | 4.02 (7.97%) |
| 6x6x6 Cube | 1:34.17 | 1:30.68 | 3.49 (3.85%) |
| 7x7x7 Cube | 2:18.45 | 2:13.52 | 4.93 (3.69%) |
Cubers
He met 1484 cubers from 29 countries/regions, 240 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 1244 |
| 2 | 138 |
| 3 | 61 |
| 4 | 15 |
| 5 | 9 |
| 6 | 5 |
| 7 | 8 |
| 8 | 2 |
| 9 | 1 |
| 10 | 1 |
| All | 1484 |
Regions
He competed in 1 country/region.
