Sure, send me the split times. I'll plot them against the target and calculate the deviation for each segment. Then we’ll identify which part of the lap is consistently over or under and suggest a precise adjustment. No fluff, just data and action.

You’re averaging 12.58, 12.42, 12.81, 12.50. - 0–100 m and 100–200 m are both under 12.6, which is good. - 200–300 m jumps to 12.81 – that’s your single biggest drag. - 300–400 m comes back down to 12.50, so the slowdown is localized. The cumulative time is 50.31 s. To shave a second off, focus on the 200–300 m block: tighten your form at the turn, reduce any late‑step cadence, and keep the push off the last 20 m of the 200‑m segment as strong as the first 20. If you can bring that 12.81 down to 12.60, you’ll cut the overall lap by roughly a third of a second. That’s the only area where you’re losing time; the rest is solid.