John Costello - Teams Played Against
| Team | Games | Tries | Goals | DropGoals | Points | First Game Against | Last Game Against |
|---|---|---|---|---|---|---|---|
| Assocation Sportive Saint Estève XIII | 1 | 0 | 0 | 0 | 0 | 30 Sep 1995 | 30 Sep 1995 |
| Barrow Raiders | 2 | 0 | 0 | 0 | 0 | 09 Oct 1994 | 14 Feb 1999 |
| Batley Bulldogs | 3 | 0 | 0 | 0 | 0 | 30 Oct 1994 | 16 May 1999 |
| Bramley | 5 | 0 | 0 | 0 | 0 | 02 Oct 1994 | 04 Jun 1997 |
| Carlisle | 4 | 0 | 0 | 0 | 0 | 15 Jan 1995 | 15 Jun 1997 |
| Chorley/Blackpool | 2 | 1 | 0 | 0 | 4 | 20 Aug 1995 | 09 May 1997 |
| Dewsbury Rams | 6 | 1 | 0 | 0 | 4 | 04 Sep 1994 | 21 Feb 1999 |
| Doncaster | 2 | 0 | 0 | 0 | 0 | 17 Dec 1995 | 06 Jul 1997 |
| Featherstone Rovers | 4 | 0 | 0 | 0 | 0 | 05 Apr 1998 | 21 Mar 1999 |
| Heworth | 1 | 0 | 0 | 0 | 0 | 22 Jan 1995 | 22 Jan 1995 |
| Highfield/Liverpool/Huyton | 5 | 3 | 0 | 0 | 12 | 11 Sep 1994 | 22 Jun 1997 |
| Huddersfield Giants | 1 | 0 | 0 | 0 | 0 | 18 Sep 1994 | 18 Sep 1994 |
| Hull Kingston Rovers | 5 | 0 | 0 | 0 | 0 | 22 Aug 1995 | 28 Jun 1998 |
| Hunslet | 9 | 0 | 0 | 0 | 0 | 21 Aug 1994 | 05 Jul 1998 |
| Hunslet Warriors | 1 | 0 | 0 | 0 | 0 | 01 Feb 1998 | 01 Feb 1998 |
| Keighley Cougars | 4 | 2 | 0 | 0 | 8 | 10 Aug 1997 | 12 Jul 1998 |
| Leigh Miners | 1 | 0 | 0 | 0 | 0 | 27 Nov 1994 | 27 Nov 1994 |
| London Broncos | 1 | 0 | 0 | 0 | 0 | 26 Dec 1994 | 26 Dec 1994 |
| Norland | 1 | 0 | 0 | 0 | 0 | 31 Jan 1999 | 31 Jan 1999 |
| Rochdale Hornets | 7 | 1 | 0 | 0 | 4 | 16 Oct 1994 | 19 Jul 1998 |
| Sheffield Eagles | 2 | 0 | 0 | 0 | 0 | 04 Dec 1994 | 15 Feb 1998 |
| Swinton Lions | 7 | 0 | 0 | 0 | 0 | 25 Jan 1995 | 16 Aug 1998 |
| Wakefield Trinity | 3 | 0 | 0 | 0 | 0 | 08 Mar 1998 | 09 Aug 1998 |
| Whitehaven | 5 | 3 | 0 | 0 | 12 | 28 Aug 1994 | 26 Jul 1998 |
| Widnes Vikings | 4 | 0 | 0 | 0 | 0 | 25 Aug 1997 | 23 Aug 1998 |
| Workington Town | 1 | 0 | 0 | 0 | 0 | 26 Feb 1995 | 26 Feb 1995 |
| York Knights | 2 | 0 | 0 | 0 | 0 | 25 Sep 1994 | 07 Feb 1999 |