Lap comparison
Compare two MyChron laps and see where the time went
Lap time tells you the result. Lap comparison shows the reason. Tenth Finder compares MyChron sessions and highlights the biggest places where time was gained or lost.
3 free analyses. Works with MyChron 5, 5S, and 6.
Why lap time alone is not enough
A 0.4 second gap between your best lap and a slower lap can come from one big mistake or four small ones. Lap time tells you nothing about which.
Comparing two laps in detail shows the difference at each corner: entry speed, minimum speed, rotation, exit. That is what tells you where to actually spend your next session.
Example: 0.874s gap explained corner by corner
Example shown from an anonymized club karting session.
In this comparison report, the reference driver's best lap was 47.476s and the student's best lap was 48.350s — a 0.874s gap. The useful part was not just the gap. Tenth Finder showed that the student was not slower everywhere. In several corners the student matched or beat the reference driver's minimum speed. The time was mainly lost on exits.
Comparison report
Reference driver
47.476s
Student driver
48.350s
Gap
0.874s
The student was already fast enough on entry. The lap was lost by waiting too long before committing to throttle on exit — especially in Turn 7 and Turn 2.
Top gains
Turn 7
~0.25s
Same 38 km/h minimum speed, but student exits 4 km/h slower.
Turn 2
~0.20s
Student enters 1 km/h faster but exits 2 km/h slower.
Turn 4
~0.15s
Same entry speed, but student exits 2 km/h slower (hairpin rotation).
Why comparison matters
Without comparison, Turn 8 looked like a problem because the student arrived 7 km/h slower. The report traced that back to Turn 7 exit speed. Fixing the earlier corner improves the next one automatically.
Driver cue
“Throttle when the steering starts to unwind — not after the wheel is straight.”
Worth noting: the student matched the reference driver on top speed (71.9 vs 72.3 km/h) and showed consistent lap times — laps 7 and 8 were within 0.016s. That means the issue was not engine, not straight-line speed, and not commitment in general. It was a specific throttle pattern on exit. That kind of precision is what comparison analysis is for.
What the comparison shows
Pick two laps from the same track and Tenth Finder lines them up corner by corner.
Best lap vs slower lap
The most useful comparison for most drivers. It shows what you are already capable of, and where you gave it back on the slower lap.
Corner-by-corner deltas
A track map highlights the corners where the time was won or lost, with the biggest deltas marked clearly so you can focus on them first.
Entry, apex, exit, and speed
Speed traces and segment-level differences for each corner: where you braked, your minimum speed, when you rotated, and how you got back to throttle.
Cross-session comparison
If you have another session from the same track — yours or one shared by a coach or faster driver — you can use it as the reference lap.
Try it with your own MyChron session
Upload one session, pick two laps, see the corners where the time actually went.
Focus on the biggest 2–3 losses first
Most lap-time gains come from a small number of corners. Tenth Finder ranks the losses so you can spend your next session fixing the ones that actually matter, instead of trying to hold ten things in your head at once.
It will not promise a guaranteed improvement. It gives you a clearer plan for the next run.
Frequently asked questions
Can I compare my best lap to another lap?
Yes. Pick your best lap and a slower lap from the same session and Tenth Finder will show you where the time was given back, corner by corner.
Can I compare two different drivers?
You can compare two sessions from the same track and track configuration. If a coach or another driver shares their MyChron session with you, you can use it as the reference.
What if the laps are from different sessions?
That works as long as both sessions are from the same track and configuration. Different tracks or layouts cannot be meaningfully compared.
Does Tenth Finder show time loss by corner?
Yes. You get a track map with corner markers and a ranked list of where the largest deltas happened, so you know which corners to focus on first.
What data does it need?
A MyChron session with GPS, speed, and lap data — which is what MyChron 5, 5S, and 6 record by default. No extra sensors are required.
Upload MyChron data and see where you lost time
3 free analyses. Compatible with MyChron 5, 5S, and 6.
Related guides
MyChron data analysis for kart racers →
Upload a MyChron 5, 5S, or 6 session and see your biggest time losses on the track map.
Karting telemetry analysis, simplified →
Turn karting telemetry into visual coaching you can act on before the next session.
How to analyze MyChron 5 data →
Skip the graph-digging. Turn MyChron 5 data into corner losses and clear driving feedback.