Fifteen rides into his career and still waiting for that first winner — Mr J Costello is a jockey at the very beginning of his journey. Racing since 2023, he has spent two years learning the craft, and the numbers so far are modest: no wins from 15 races across his career to date.Based on TrackLab's AI analysis
A snapshot of this jockey's performance over the last 12 months
15
Races
0
Wins
0%
Win rate
avg ~10%
20%
Place rate (top 3)
avg ~30%
🔍 Full Analysis
TrackLab's AI-generated assessment based on career data and recent form
TrackLab's Jockey Breakdown
Auto-Generated
The bulk of his experience has come through a steady partnership with trainer A J Martin, who has put him up 14 times. That kind of repeated trust from a yard matters more than it might seem — trainers don't keep booking a jockey out of charity, and 14 rides together suggests Martin sees something worth developing. The wins haven't arrived yet, but the opportunity to keep riding is how jockeys improve.
Every successful rider in the sport went through a stage exactly like this. The first winner, when it comes, tends to arrive without warning — and at that point, two years of groundwork suddenly starts to look like preparation rather than struggle.
📈 Form Trend
How this jockey's win rate has changed month by month
Monthly win rate
2024–2026
0%
Oct
0%
Dec
0%
Mar
0%
Apr
0%
Jun
0%
Jul
0%
Aug
0%
Sep
0%
Oct
0%
Nov
0%
Dec
0%
Jan
🎯 Where This Jockey Thrives
Performance broken down by ground, class, and track type
🌧 Ground Conditions
Yielding
—
Good (firm-ish)
—
Heavy (very wet)
—
Soft (muddy)
—
Good to yielding
—
Soft to heavy
—
🏟 Track Shape
Right-handed, wide and galloping
—
Left-handed, tight turning
—
Right-handed, undulating
—
Right-handed, tight turning
—
Left-handed, wide and galloping
—
Right-handed, tight
—
🏇 Trainer Partnerships
The trainers they work with most, sorted by rides together