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Results & PRs for Chang Hong Liang (张泓量)'s official Square-1 (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Every number on this screen is Chang Hong Liang (张泓量)'s Square-1 (WCA) results only — no other competitor or event is mixed in.
Chang Hong Liang (张泓量) has no Square-1 rating yet. Ratings are seeded from WCA world rankings and then move with every club challenge. See the Square-1 board
Results & PRs
PBs, PR progression and PR pace
Chang Hong Liang (张泓量)'s Square-1 PB average is 21.20, set at Singapore Polytechnic September Showdown 2025, after 8 PRs in this event — and typically competes within 5% of the PB average held walking in.
PB singlelower is better
14.97
Singapore Polytechnic September Showdown 2025
PB averagelower is better
21.20
Singapore Polytechnic September Showdown 2025
Total event PRs
8
Single vs average PRs
4 / 4
single PRs / average PRs
Avg days between PRslower is better
786
Longest gap
2754d
2017-06-18 → 2025-01-01
How close to peak?lower is better
104.6%
60% of comps within 10% of PB pace
Recent PR pace
0 / 12mo
5 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 100% is this cuber's own typical pace.