File formats

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Piranha interoperates with the standard swim-meet file formats so you can move rosters, entries, and results in and out.

Formats

SD3 / CL2 (SDIF) — the long-standing SDIF exchange format. SD3 is used for roster and entry import (dual-meet entry files also carry relay lineups) and results export (field-for-field parity with Meet Manager’s own results file, including per-leg relay splits). .cl2 is exported as a first-class results file too; CL2 import syncs Meet Manager heat/lane seeding onto already-imported entries.
Hy-Tek .hy3 — Hy-Tek/SwimTopia’s native format. Read for relay results, and written as a full results export (results.hy3 — individual results complete; relay results are a known gap). The results.zip export bundles the .cl2 + .hy3 pair exactly the way Meet Manager’s own results export does, under Meet Manager’s filename convention (Meet Results-<meet>-<date>-001.zip).
Lenex — the modern XML interchange format (.lef / .lxf), import and export.
.hyv + .ev3 (the meet-events .zip) — the event order / program definition, exported before the meet for team distribution and read back for event classification.
TimeDrops .gen — per-heat results files from the timing system, ingested live on deck (round-aware, and idempotent on re-import).
Colorado .scb — scoreboard start-list export.
Hy-Tek .rec — record-board files (read, and byte-exact write).
Meet Manager native .mdb — read-only, on the server: sessions, prelim/final rounds, IM time standards, records, and DQ sync are imported by operator command-line tools (there is no in-app .mdb upload).
TeamUnify roster XLSX and the Acorn season CSV feed — read-only imports run as server-side tools.

Fidelity

Piranha stores the richest representation it can parse as the canonical value and flattens at each exporter, so importing then re-exporting preserves as much detail as the target format allows. Round-trip coverage is tracked per format.

For developers

The in-repo docs/file-formats.md carries the authoritative field-parity and round-trip coverage matrix and is the source of truth for parser/exporter details.