| Super League IV | |
|---|---|
| League | Super League |
| Duration | 30 Rounds |
| Teams | 14 |
| Highest attendance | 24,020 Bradford Bulls vsLeeds Rhinos(3 Sept) |
| Lowest attendance | 1,580 Gateshead Thunder vsHull Sharks (19 May) |
| Broadcast partners | Sky Sports |
| 1999 Season | |
| Champions | St. Helens 2ndSuper League title 9thBritish title |
| League Leaders | Bradford Bulls |
| Man of Steel |  Adrian Vowles |
| Top point-scorer(s) |  Iestyn Harris (325) |
| Top try-scorer(s) |  Toa Kohe-Love (25) |
| Left League | |
| Merged withHull FC Merger withHuddersfield Giants | Gateshead Thunder; Sheffield Eagles |
JJB SportsSuper League IV was the official name for the year 1999's Super League championship season, the 105th season of top-level professionalrugby league football in Britain, and the fourth championship run by theSuper League. The start of Super League IV saw the emergence of aNorth East based Rugby League Club,Gateshead Thunder as well as newly promotedWakefield Trinity Wildcats to expand the league to fourteen teams.
| Legend | |
|---|---|
| Reigning Champions | |
| Promoted | |
| Team | Stadium | Capacity | City/Area | |
|---|---|---|---|---|
 Bradford Bulls | Odsal | 27,000 | Bradford, West Yorkshire | |
 Castleford Tigers | Wheldon Road | 11,750 | Castleford, West Yorkshire | |
 Gateshead Thunder | Gateshead International Stadium | 11,800 | Gateshead, Tyne and Wear | |
 Halifax Blue Sox | Thrum Hall | 9,832 | Halifax, West Yorkshire | |
 Huddersfield Giants | Galpharm Stadium | 24,500 | Huddersfield, West Yorkshire | |
 Hull Sharks | The Boulevard | 10,500 | Hull, East Riding of Yorkshire | |
 Leeds Rhinos | Headingley | 21,500 | Leeds, West Yorkshire | |
 London Broncos | The Valley | 27,000 | Charlton, Greater London | |
 Salford Reds | The Willows | 11,363 | Salford, Greater Manchester | |
 Sheffield Eagles | Don Valley Stadium | 25,000 | Sheffield, South Yorkshire | |
 St. Helens | Knowsley Road | 17,500 | St Helens, Merseyside | |
 Warrington Wolves | Wilderspool | 9,200 | Warrington, Cheshire | |
 Wigan Warriors | Central Park | 18,000 | Wigan, Greater Manchester |
| Pos | Team | Pld | W | D | L | PF | PA | PD | Pts | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Bradford Bulls(L) | 30 | 25 | 1 | 4 | 897 | 445 | +452 | 51 | Semi Final |
| 2 | St Helens(C) | 30 | 23 | 0 | 7 | 1034 | 561 | +473 | 46 | Qualifying Semi Final |
| 3 | Leeds Rhinos | 30 | 22 | 1 | 7 | 910 | 558 | +352 | 45 | |
| 4 | Wigan Warriors | 30 | 21 | 1 | 8 | 877 | 390 | +487 | 43 | Elimination Semi Final |
| 5 | Castleford Tigers | 30 | 19 | 3 | 8 | 712 | 451 | +261 | 41 | |
| 6 | Gateshead Thunder | 30 | 19 | 1 | 10 | 775 | 576 | +199 | 39 | |
| 7 | Warrington Wolves | 30 | 15 | 1 | 14 | 700 | 717 | −17 | 31 | |
| 8 | London Broncos | 30 | 13 | 2 | 15 | 644 | 708 | −64 | 28 | |
| 9 | Halifax Blue Sox | 30 | 11 | 0 | 19 | 573 | 792 | −219 | 22 | |
| 10 | Sheffield Eagles | 30 | 10 | 1 | 19 | 518 | 818 | −300 | 21 | |
| 11 |  Wakefield Trinity Wildcats | 30 | 10 | 0 | 20 | 608 | 795 | −187 | 20 | |
| 12 | Salford Reds | 30 | 6 | 1 | 23 | 526 | 916 | −390 | 13 | |
| 13 | Hull Sharks | 30 | 5 | 0 | 25 | 422 | 921 | −499 | 10 | |
| 14 | Huddersfield Giants | 30 | 5 | 0 | 25 | 463 | 1011 | −548 | 10 |
| Qualifying play-off | Qualifying semi-final | Preliminary final | Grand Final | |||||||||||||||
| 1 | Bradford Bulls | 40 | Bradford Bulls | 6 | ||||||||||||||
| St. Helens | 4 | St. Helens | 8 | |||||||||||||||
| 2 | St. Helens | 38 | St. Helens | 36 | ||||||||||||||
| 3 | Leeds Rhinos | 14 | Elimination semi-final | Castleford Tigers | 6 | |||||||||||||
| Leeds Rhinos | 16 | |||||||||||||||||
| 4 | Wigan Warriors | 10 | Castleford Tigers | 23 | ||||||||||||||
| 5 | Castleford Tigers | 14 | ||||||||||||||||
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