Jackey Zheng — Clock (WCA) results & prs
Results & PRs for Jackey Zheng's official Clock (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Jackey Zheng — Clock (WCA)
Every number on this screen is Jackey Zheng's Clock (WCA) results only — no other competitor or event is mixed in.
Jackey Zheng 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
Jackey Zheng · Clock (WCA)
PBs, PR progression and PR pace
Jackey Zheng's Clock PB average is 12.48, set at Canadian Championship 2019, after 9 PRs in this event — and typically competes within 2% of the PB average held walking in.
PB singlelower is better
8.40
Mid-Atlantic Warm-Up 2026
PB averagelower is better
12.48
Canadian Championship 2019
Total event PRs
9
Single vs average PRs
4 / 5
single PRs / average PRs
Avg days between PRslower is better
597
Longest gap
2571d
2019-07-26 → 2026-08-09
How close to peak?lower is better
101.9%
64% of comps within 10% of PB pace
Recent PR pace
1 / 12mo
0 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 101% is this cuber's own typical pace.