In the past year (2019), Jack Cai competed in 24 competitions and 309 rounds across 16 events, from Jan 12th to Dec 29th.
Records
He broke 7 records, including 3 WRs, 3 OcRs, and 1 NR.
Podiums
He has been on the podium 47 times across 7 events, including 30 golds, 10 silvers, and 7 bronzes.
| Event | Gold | Silver | Bronze |
| 3x3x3 Blindfolded | 17 | 1 | |
| 4x4x4 Blindfolded | 6 | 1 | |
| 3x3x3 Multi-Blind | 5 | 2 | 1 |
| 3x3x3 One-Handed | 2 | 3 | 4 |
| Pyraminx | | 2 | |
| 5x5x5 Blindfolded | | 1 | |
| 4x4x4 Cube | | | 2 |
Solves/Attempts
He attempted 1245 solves and completed 1086.
| Event | Solves | Attempts |
| 3x3x3 Cube | 209 | 230 |
| 3x3x3 One-Handed | 201 | 205 |
| 2x2x2 Cube | 153 | 155 |
| Pyraminx | 144 | 145 |
| 4x4x4 Cube | 125 | 125 |
| 3x3x3 Blindfolded | 80 | 129 |
| 5x5x5 Cube | 60 | 61 |
| Skewb | 55 | 57 |
| 3x3x3 Multi-Blind | 12 | 17 |
| 6x6x6 Cube | 11 | 11 |
| 4x4x4 Blindfolded | 11 | 45 |
| 7x7x7 Cube | 10 | 10 |
| Megaminx | 7 | 7 |
| 3x3x3 Fewest Moves | 6 | 10 |
| 5x5x5 Blindfolded | 2 | 36 |
| Square-1 | 0 | 2 |
Personal Bests
He broke his personal best 31 times across 14 events, including 17 singles and 14 averages.
| Event | Times | Single | Average |
| 3x3x3 Blindfolded | 5 | 2 | 3 |
| 7x7x7 Cube | 4 | 3 | 1 |
| 4x4x4 Blindfolded | 3 | 2 | 1 |
| 2x2x2 Cube | 2 | 1 | 1 |
| 4x4x4 Cube | 2 | 1 | 1 |
| 5x5x5 Cube | 2 | 0 | 2 |
| 6x6x6 Cube | 2 | 1 | 1 |
| Pyraminx | 2 | 1 | 1 |
| Skewb | 2 | 1 | 1 |
| 5x5x5 Blindfolded | 2 | 2 | 0 |
| 3x3x3 Multi-Blind | 2 | 2 | 0 |
| 3x3x3 Cube | 1 | 1 | 0 |
| 3x3x3 Fewest Moves | 1 | 0 | 1 |
| 3x3x3 One-Handed | 1 | 0 | 1 |
Improvements of Single
| Event | ≤2018 | 2019 | Improvement |
| 5x5x5 Blindfolded | 12:46.00 | 6:45.65 | 6:00.35 (88.83%) |
| 4x4x4 Blindfolded | 3:13.80 | 2:02.25 | 1:11.55 (58.53%) |
| 3x3x3 Multi-Blind | 19/19 57:59 | 29/30 59:40 | 9 (47.37%) |
| Skewb | 7.03 | 5.16 | 1.87 (36.24%) |
| 3x3x3 Blindfolded | 19.20 | 16.22 | 2.98 (18.37%) |
| Pyraminx | 4.20 | 3.60 | 0.60 (16.67%) |
| 6x6x6 Cube | 4:41.72 | 4:06.04 | 35.68 (14.50%) |
| 4x4x4 Cube | 37.76 | 35.59 | 2.17 (6.10%) |
| 7x7x7 Cube | 7:51.52 | 7:25.35 | 26.17 (5.88%) |
| 2x2x2 Cube | 1.99 | 1.90 | 0.09 (4.74%) |
| 3x3x3 Cube | 9.30 | 8.92 | 0.38 (4.26%) |
Improvements of Average
| Event | ≤2018 | 2019 | Improvement |
| Skewb | 13.34 | 9.60 | 3.74 (38.96%) |
| 3x3x3 Blindfolded | 20.59 | 18.27 | 2.32 (12.70%) |
| 2x2x2 Cube | 3.57 | 3.29 | 0.28 (8.51%) |
| Pyraminx | 5.41 | 5.15 | 0.26 (5.05%) |
| 4x4x4 Cube | 44.99 | 44.23 | 0.76 (1.72%) |
| 5x5x5 Cube | 1:54.62 | 1:52.80 | 1.82 (1.61%) |
| 3x3x3 One-Handed | 14.74 | 14.61 | 0.13 (0.89%) |
| 7x7x7 Cube | - | 7:28.19 | - |
| 4x4x4 Blindfolded | - | 4:34.77 | - |
| 6x6x6 Cube | - | 4:22.98 | - |
| 3x3x3 Fewest Moves | - | 40.33 | - |
Cubers
He met 1779 cubers from 50 countries/regions, 660 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 1119 |
| 2 | 363 |
| 3 | 124 |
| 4 | 64 |
| 5 | 39 |
| 6 | 28 |
| 7 | 10 |
| 8 | 11 |
| 9 | 5 |
| 10 | 6 |
| 11 | 5 |
| 12 | 3 |
| 14 | 1 |
| 15 | 1 |
| All | 1779 |
Regions
He competed in 3 countries/regions.
| Region | Times |
| Australia | 22 |
| Japan | 1 |
| New Zealand | 1 |
