Jeffrey Coston — Clock (WCA) results & prs
Results & PRs for Jeffrey Coston's official Clock (WCA) results: every round on record, measured against their own personal bests and their peers.
Competitor event analysis
Jeffrey Coston — Clock (WCA)
Every number on this screen is Jeffrey Coston's Clock (WCA) results only — no other competitor or event is mixed in.
Jeffrey Coston 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
Jeffrey Coston · Clock (WCA)
PBs, PR progression and PR pace
Jeffrey Coston's Clock PB average is 15.19, set at Iowa Championship 2026, after 6 PRs in this event — and typically competes within 1% of the PB average held walking in.
PB singlelower is better
13.62
Iowa Championship 2026
PB averagelower is better
15.19
Iowa Championship 2026
Total event PRs
6
Single vs average PRs
3 / 3
single PRs / average PRs
Avg days between PRslower is better
382
Longest gap
721d
2024-08-16 → 2026-08-07
How close to peak?lower is better
100.8%
50% 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 111% is this cuber's own typical pace.