Hit your next sub-X. Track every solve.
Independent AO100, targets, and AI coaching for each event
Know where you stand before your first solve
Open your dashboard and it's all there: the AO100 to expect today, how close your goal is and when you'll likely reach it, which way your averages moved this week, and every day you practised.
Milestones
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
See How Many Solves It Takes
How many solves your next barrier takes, from your own trend and what cubers at your level needed for the same drop.
Current AO100
24.76s
Solves to sub-20
~2,557
likely 2,215–4,604
Most likely around
Apr 2027
likely Apr 4, 2027 – Aug 2028
Performance Trend & Forecast
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 24.76s with a 14-day slope of −0.13s/day: steady improvement, not a lucky streak. The spread of your last 100 solves has narrowed by 0.91s in 30 days, to 3.03s, so the average is falling mostly because the slow solves are getting rarer.
Keep closing the spread. At 3.03s it is still wide for a sub-25 cuber: bringing it toward 2.5s takes more off your AO100 than chasing faster singles.
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.
Hold volume near 140 solves a week while the spread keeps narrowing.
At your current pace, sub-24 is about 114 solves away and sub-20 about 2,557. No new algorithm set stands between you and sub-20: the work is consolidation, not learning.
You have practised hard for four weeks. If two sessions in a row run more than a second over your AO100, take a lighter day: pushing through fatigue tends to show up as a plateau a few weeks later.
Stop guessing which step is slowing you down
Connect a GAN, MoYu or QiYi smart cube and Sub-X reconstructs every solve in the browser: cross, F2L, OLL and PLL splits, TPS, and the pauses in between. Then it measures each step against the pace your goal actually requires.
See which cubes are supported →Smart Cube
Example dataPer-phase splits, TPS & reconstructions captured from your smart cube
Recent solves12
Where to Focus
Based on 45 smart-cube solves · vs your goal pace
You average 14.9s on F2L but need ~10.5s to hit your goal, about 4.4s to gain. Lookahead is the limiter, not turn speed.
Why this? ▾Hide ▴
F2L is 4.4s behind your goal pace, 4.4s of the 6.7s on the table across all four steps (65%).
- Lookahead pauses ~4.8s vs a ~2.0s goal-pace target (2.8s over).
- Turning ~10.1s vs ~8.5s (1.6s over).
- Turn speed fades ~23% from your first F2L pairs to your last, a pausing-to-find-the-next-pair tell, not slow fingers.
Targets are your goal tier's pace for each step, from 45 smart-cube solves.
You average 3.8s on Cross but need ~2.2s to hit your goal, about 1.6s to gain. Lookahead is the limiter, not turn speed.
Why this? ▾Hide ▴
Cross is 1.6s behind your goal pace, 1.6s of the 6.7s on the table across all four steps (24%).
- Lookahead pauses ~2.0s vs a ~0.8s goal-pace target (1.2s over).
- Turning ~1.8s vs ~1.4s (0.4s over).
Targets are your goal tier's pace for each step, from 45 smart-cube solves.
How each step compares to your goal pace
Your cross and first pair together average 8.2s versus ~4.0s for your goal. A slow cross-to-first-pair transition. Tracking the first pair during your cross, or planning it in inspection, would close most of this.
This overlaps Cross and F2L above, so read it on its own rather than added to those bars.
Where Your Time Goes Over Time
Stacked solve time by phase. Total height is your full solve, so a shrinking stack means you're getting faster.
Each point is the median of up to 5 consecutive solves, dated by the block's last solve, not a daily average.
No smart cube? The timer works with any cube. Smart-cube features simply add the per-phase detail on top.
Everything you need to improve
From 3×3 to 5×5, Sub-X grows with every event on your journey.
Built-in Timer
Time solves directly in Sub-X, with no more switching to csTimer. WCA-style scrambles and inspection, hold-to-start, instant AO5/AO12 stats, and solves sync to your dashboard automatically. No signup needed to start.
Bluetooth Smart Cube
Connect a GAN, MoYu or QiYi smart cube and every solve is reconstructed in the browser: cross, F2L, OLL and PLL splits, per-pair times, TPS, and a measured verdict on which step is really costing you. No app to install.
Battle Mode
Make practice a game. Turn it on in the timer and a pixel enemy waits under your time: every solve hits it, and faster solves hit harder. For 3×3, no signup needed.
F2L Coach
Paste any scramble and walk through the cross and all four F2L pairs in 3D: the grip to hold, the case for each pair, and why that pair came next. No login required.
Slow Solve Trainer
A metronome and a scramble. Turn on every beat and never stop: the drill that builds lookahead and takes the pauses out of your solves. No login required.
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.
Daily Dashboard
One page to open before you practise: the AO100 to expect today (3×3), your streak and every day you practised on a calendar, and the next milestones you're closing in on.
AO12 / AO100 Tracking
AO100 tracks your true long-term level and AO12 your session-to-session swings. Your dashboard says which way each moved this week, with the full charts a tab away. Separate stats for 3×3, 4×4, and 5×5.
Growth Prediction
Set a target AO100 and see about how many solves it'll take, the likely dates at your recent pace, and whether you're ahead of your last forecast. The full forecast chart and an AI coaching report are on Progress.
csTimer Import
Upload your csTimer exports (JSON or CSV) and we'll parse every solve automatically.
Public Profile
Share your progress with a beautiful public profile page, with your X (Twitter) solve videos linked for the community to see. Perfect for showing off on Reddit and Discord.
The Cubing Dictionary
DNF, +2, look-ahead, PLL skip. Every piece of speedcubing slang, with the joke first and the real meaning right after. No login required.
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