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Results & PRs for Jiahua Zhang (张家华)'s official 4x4x4 Cube (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Every number on this screen is Jiahua Zhang (张家华)'s 4x4x4 Cube (WCA) results only — no other competitor or event is mixed in.
Jiahua Zhang (张家华) has no 4x4x4 Cube rating yet. Ratings are seeded from WCA world rankings and then move with every club challenge. See the 4x4x4 Cube board
Results & PRs
PBs, PR progression and PR pace
Jiahua Zhang (张家华)'s 4x4x4 Cube PB average is 30.65, set at Guangzhou Grand Open 2026, after 18 PRs in this event — and typically competes within 0% of the PB average held walking in.
PB singlelower is better
28.57
Foshan Open 2026
PB averagelower is better
30.65
Guangzhou Grand Open 2026
Total event PRs
18
Single vs average PRs
7 / 11
single PRs / average PRs
Avg days between PRslower is better
548
Longest gap
2701d
2018-12-09 → 2026-05-02
How close to peak?lower is better
99.5%
88% of comps within 10% of PB pace
Recent PR pace
4 / 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 99% is this cuber's own typical pace.