England
John Costello
“Cozzy”
Age
35
Home town
Liverpool
Started playing
2003
Throws
Right
Season record
1
Events
0
Titles
1–1
W–L
0
Finals
50.0%
Win %
57.00
Average
Amounts are per-round prize money; winner prizes are not in the official data. Premier League and World Series use points.
Career by season
| Season | Matches | W–L | Win % | Average | Titles |
|---|---|---|---|---|---|
| 2025 | 2 | 1–1 | 50.0% | 57.00 | 0 |
Averages cover matches from 2019 at non-televised events (televised events have no public data). Sources: results PDC official, averages DartConnect