This page is still filling in
We're pulling Yul-Hok Sung (성열학)'s photo from the official WCA records. It usually takes a few seconds — reload to see the finished page.
Yul-Hok Sung (성열학) — Clock (WCA) results & prs
Results & PRs for Yul-Hok Sung (성열학)'s official Clock (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Yul-Hok Sung (성열학) — Clock (WCA)
Every number on this screen is Yul-Hok Sung (성열학)'s Clock (WCA) results only — no other competitor or event is mixed in.
Yul-Hok Sung (성열학) 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
Yul-Hok Sung (성열학) · Clock (WCA)
PBs, PR progression and PR pace
Yul-Hok Sung (성열학)'s Clock PB average is 13.36, set at Korea Open 2025, after 15 PRs in this event — and typically competes within 0% of the PB average held walking in.
PB singlelower is better
11.34
Brown Fall Seongnam 2024
PB averagelower is better
13.36
Korea Open 2025
Total event PRs
15
Single vs average PRs
8 / 7
single PRs / average PRs
Avg days between PRslower is better
251
Longest gap
1092d
2019-08-16 → 2022-08-12
How close to peak?lower is better
99.1%
71% of comps within 10% of PB pace
Recent PR pace
0 / 12mo
2 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.