Hit your next sub-X. Track every solve.
Independent AO100, targets, and AI coaching for each event
Track Your True Level with AO100
Your AO100 is the most honest measure of where you actually are. Watch it fall.
Latest 20 Solves
Click a dot to see scramble
Daily AO12
Daily AO100 & Mean
Personalized AI Coaching
Our AI reads your AO100 data and generates a coaching report: focus areas, practice strategy, and risk warnings, personalized to your current level.
AI Performance Insight
AO100 of 24.88s sits 3.2s above the median of the three most recent session peaks (21.68s), indicating that peak capacity already reaches the Sub-22 range while average performance lags. The 14-day slope of −0.18s/day confirms active improvement, but a stddev of 2.1s reflects execution inconsistency that is widening this gap rather than closing it.
Reduce inter-solve variance: the 2.1s standard deviation is the binding constraint. Shaving 0.5s off stddev adds more to AO100 than equivalent gains in single-solve speed at this tier.
Target slow F2L slots specifically: track the two worst slots per session and drill them in isolation until slot time drops below 4s.
Alternate between full solves and timed F2L-only runs (cross + 4 pairs) at a 2:1 ratio to surface which pair sequences spike execution time.
Do not increase weekly volume beyond 210 solves until stddev falls below 1.8s.
The −0.18s/day 14-day slope places elimination of the Sub-20 gap at roughly 22 days at current trajectory, assuming variance holds. The phase tier gap is 1, meaning no algorithmic ceiling change is required; the work is consolidation, not learning.
Stddev has risen 0.3s over the past 30 days alongside the improving slope. This pattern (volatility_spike) often precedes a plateau if volume is increased without addressing the variance source. Adding solves before stabilizing execution risks reinforcing inconsistent technique.
See How Many Solves It Takes
ProOur projection model estimates the number of solves required to break your next barrier.
Current AO100
24.88s
Solves to Sub-20
~1,150
Checkpoint
Sub-22 in ~580 solves
Performance Trend & Forecast
Everything you need to improve
From 3×3 to 5×5, SubX grows with every event on your journey.
Cross Inspection Trainer
Drill optimal cross solutions during inspection. Pick a color, target length, and front face, then solve in 3D and check against the optimal. No login required.
Built-in Timer
Time solves directly in SubX, with no more switching to csTimer. WCA-style scrambles, hold-to-start, instant AO5/AO12 stats, and solves sync to your dashboard automatically.
AO12 / AO100 Tracking
AO100 tracks your true long-term level. AO12 shows session volatility. Separate stats for 3×3, 4×4, and 5×5, with each event tracked independently.
csTimer Import
Upload your csTimer exports (JSON or CSV) and we'll parse every solve automatically.
Beautiful Charts
Interactive charts showing your AO12, AO100, and mean progression over time.
Public Profile
Share your progress with a beautiful public profile page. Perfect for showing off on Reddit and Discord.
Growth Prediction
Enter any target time and get a data-driven solve estimate, a confidence band forecast chart, and an AI coaching report.
Solve Video Embeds
Link your X (Twitter) solve videos directly on your profile for the community to see.
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