The old saying about the size of the fight in the dog rung true at Hanshin, Japan on Saturday.

The 2400m maiden saw the tiny Melody Lane absolutely trounce her rivals, the Orfevre filly coming from well-back in the field to land her first win at start No.10 by a lazy 9L (paying a handy $9.30 on the local tote).

But it's the fact that she tipped the scales on Saturday at a meagre 340kg that turned heads as much as her winning margin.

For reference, the runner-up on Saturday, Dandyism, had tipped the scales at 474kg at his most recent start. Two M Alonso (finished sixth behind Melody Lane) was 532kg when he debuted last month.

When she resumed from a spell in March this year, Melody Lane weighed in at 330kg, and she was at her heaviest of the prep six runs in on Saturday.

Melody Lane carried 51kg on Saturday, or 15 per cent of her own body weight, with Mirai Iwata the winning jockey along for the ride.