Jack Zhang — Clock (WCA) results & prs
Results & PRs for Jack Zhang's official Clock (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Jack Zhang — Clock (WCA)
Every number on this screen is Jack Zhang's Clock (WCA) results only — no other competitor or event is mixed in.
Jack Zhang has no Clock rating yet. Ratings are seeded from WCA world rankings and then move with every club challenge. See the Clock board
Results & PRs
Jack Zhang · Clock (WCA)
PBs, PR progression and PR pace
Jack Zhang's Clock PB average is 4.48, set at Beachside Auckland 2025, after 18 PRs in this event — and typically competes within 4% of the PB average held walking in.
PB singlelower is better
3.65
Beachside Auckland 2025
PB averagelower is better
4.48
Beachside Auckland 2025
Total event PRs
18
Single vs average PRs
10 / 8
single PRs / average PRs
Avg days between PRslower is better
194
Longest gap
449d
2024-06-28 → 2025-09-20
How close to peak?lower is better
104.1%
67% of comps within 10% of PB pace
Recent PR pace
0 / 12mo
3 in the 12 months before
PR progression over time
How close to peak?
100% means solving exactly at PB-average pace — almost nobody lives there. Green is within 10% of PB or better; the dashed line at 98% is this cuber's own typical pace.