Compare race results between long course (50m) and short course (25m) pools.
Use the Torpedo Swimtalk LCM to SCM Time Converter and our Torpedo Swimtalk Flat Start to Relay Time Convertor below to instantly calculate your adjusted times.
Scroll down to view our easy-reference conversion tables. Whether you’re tracking PBs, planning training, or preparing for competitions, this tool makes comparing performances simple and reliable
Time Converter
Flat % conversion between LCM and SCM — SCM always faster, more % for longer events.
Note: This tool supports LCM and SCM only.
Relay Split Adjuster Torpedo Swimtalk
Convert between flat-start race times and relay flying splits. Choose stroke & distance, set Masters/Elite preset, and optionally convert LCM↔SCM.
Relay flying starts remove reaction time: ~0.6–0.7 s for National Masters, ~0.7–0.9 s at Elite level. We subtract the advantage to estimate a flying split from a flat-start race, or add it to estimate a flat-start from a relay split.
Recommended Relay Advantages (seconds)
Defaults auto-fill the calculator. Adjust within ranges to suit your team’s changeovers.
National Masters
| Stroke | 50 m | 100 m | 200 m |
|---|---|---|---|
| Freestyle | 0.65 (0.60–0.70) | 0.65 (0.60–0.70) | 0.62 (0.55–0.65) |
| Backstroke | 0.65 (0.60–0.70) | 0.65 (0.60–0.70) | — |
| Breaststroke | 0.65 (0.60–0.70) | 0.65 (0.60–0.70) | — |
| Butterfly | 0.65 (0.60–0.70) | 0.65 (0.60–0.70) | — |
Elite
| Stroke | 50 m | 100 m | 200 m |
|---|---|---|---|
| Freestyle | 0.85 (0.70–0.90) | 0.80 (0.70–0.90) | 0.80 (0.68–0.88) |
| Backstroke | 0.85 (0.70–0.90) | 0.80 (0.70–0.90) | — |
| Breaststroke | 0.85 (0.70–0.90) | 0.80 (0.70–0.90) | — |
| Butterfly | 0.85 (0.70–0.90) | 0.80 (0.70–0.90) | — |
Backstroke **lead-off** in a medley relay is a flat start (no flying advantage). This tool applies the advantage only when you’re converting to/from a flying split.