Referees till 21 May
Heineken Cup Final
Cardiff will be the focus of attention for millions this weekend as the Heineken Cup final is played. It is not the only big match.
There will be a lot of attention paid to matches in Christchurch and Wellington as well. And there are others, including an important one in Beijing.
World Cup qualifier
This one decides who gets to join Japan and Korea to decide the Asian qualifier and repéchage candidate.
China vs Hong Kong in Beijing,
Referee: Shinji Aida (Japan)
Touch judges: Taizo Hirabayashi, Fumitaka Kono (both Japan)
Match Commissioner: Jarrad Gallagher (Hong Kong)
European Nations Cup
Czech Republic vs Portugal in Ricany
Referee: Giulio De Santis (Italy)
FIRA-AER
Division 3 A
Latvia vs Austria in Riga
Referee: Arturas Jaselskis (Lithuania)
Triangular Series
This is the first-ever Test for the Philippines. The third country in the trianguilar is Pakistan.
Philippines vs Guam on Guam
Referee: Kim Do Suk (Korea)
Heineken Cup Final
Biarritz Olympique vs Munster at Millennium Stadium, Cardiff
Referee: Chris White (England)
Touch judges: Dave Pearson, Tony Spreadbury (both England)
Television match official: Geoff Warren (England)
European Challenge Cup final
London Irish vs Gloucester at The Stoop
Referee: Nigel Whitehouse (Wales)
Touch judges: Nigel Owens, tba (both Wales)
Super 14
Semi-finals
Hurricanes vs Waratahs in Wellington
Referee: Jonathan Kaplan (South Africa)
Touch judges: Craig Joubert (South Africa), Tappe Henning (South Africa)
Television match official: JC Fortuin (South Africa)
Assessor: Kim Eichmann (New Zealand)
Crusaders vs Bulls in Christchurch
Referee: Stuart Dickinson (Australia)
Touch judges: Matt Goddard (Australia), Brett Bowden (Australia)
Television match official: Paul Marks (Australia)
Assessor: Stuart Beissel (New Zealand)
Celtic League
Scarlets vs Ulster at Stradey Park
Referee: Graeme Hannah (Scotland)
Touch judges: Jon Mason, Ken Bowen (both Wales)
North America 4
This is a brand new competition.
US Falcons vs Canada East
Referee: Colin Campbell (Canada)
Touch judges: Alan Gray, Glen Macdonald (both Canada)
Assessor: Dave Pue (Canada)
Canada West vs US Hawks
Referee: Al Klemp (USA)
Touch judges: Bruce Kuklinski, Alan Gray (both Canada)
Assessor: Dave Pue (Canada)
Friendly
Saracens vs World XV at Vicarage Road
Referee: Wayne Barnes
Touch judges: Rob Debney, David Broadwell
Australia
New South Wales
Shute Shield semi-finals
Randwick vs Sydney University at Coogee Oval
Referee: James Scholtens
Touch judges: James Leckie, Bradley Wahl
Television match official: Andrew Lees
Assessor: Michael Tanzer
Eastwood vs Parramatta at TG Millner Field
Referee: Andrew Lindsay
Touch judges: Nathan Pearce, Daniel Cheever
Assessor: Brian Kinsey
England
Friendly
Matt Hampson Benefit Match
Leicester A vs England U21 at Welford Road
Referee: Tony Spreadbury
Touch judges: Wayne Barnes, Paul Emerson
County Championship Cup
Cornwall vs Devon
Referee: Gareth Copsey
Touch judges: Richard Parker-Sedgemore, Fred Spong
Hertfordshire vs Gloucestershire
Referee: Rowan Kitt
Touch judges: Glenn Ohara, Paul Dickens
Assessor: Bob Bullock
Northumberland vs North Midlands
Referee: Chris Sharp
Touch judges: Brendan Fitzmaurice, Alan Hughes
Yorkshire vs Lancashire County
Referee: Dale Newitt
Touch judges: Llyr Apgeraint Roberts, Steve Savage
County Championship Plate
East Midlands vs Oxfordshire
Referee: Terry Hall
Touch judges: Steve Bradford, Fred Farndon
Nottinghamshire, Lincolnshire & Derbyshire vs Kent
Referee: Chris Seeley
Touch judges: Dave Smith, Colin Macdonald
County Championship Shield
Cheshire vs Warwickshire
Referee: Richard Phillips
Touch judges: Steve Makinson, Dave Miller
Cumbria vs Durham County
Referee: Andrew Vertigan
Touch judges: Barry Dalby, John Large
Middlesex vs Sussex
Referee: Geraint Ashton Jones
Touch judges: Nick Clarke, Paul Burton
Somerset vs Surrey
Referee: Adrian Hartwell
Touch judges: Adrian Stephenson, Mark Summerhayes
Assessor: M Coleman
France
Pro D2 - 30ème journée
Béziers vs Aurillac
Referee: David Rosich
Touch judges: Jean-Claude Abejean, Michel Couzier
Assessor: Yves Bressy
Lyon vs Auch
Referee: Didier Mene
Touch judges: Jean Claude Bes, Daniel Jeanguiot
Assessor: Patrick Thomas
Aix vs Oyonnax
Referee: Bruno Bessot
Touch judges: Didier Martinaud, Thierry Chanut
Assessor: Daniel Pruvot
Albi vs Racing Metro 92
Referee: Jérôme Garces
Touch judges: Henri Claverie, Jacques Laplace
Assessor: Alain Fernandez
Bordeaux vs Tyrosse
Referee: Akim Hadj Bachir
Touch judges: Gérard Gacon, Jean-Yves Quintin
Assessor: Daniel Dartigeas
La Rochelle vs Montauban
Referee: Eric Briquet Campin
Touch judges: Didier Bonnet, Francis Labat
Assessor: Patrick Robin
Tarbes vs Colomiers
Referee: Eric Gauzins
Touch judges: Didier Dussaut, Fernand Pereira
Assessor: Marc Daroque
Dax vs Mont-de-Marsan
Referee: Jean-Pierre Matheu
Touch judges: Jean-Claude Dastugue, Didier Morin
Assessor: Francis Palmade
Italy
Super 10
Semi-finals - 2nd leg
Benetton Treviso vs SKG GRan Parma
Referee: Paulo Ventura (Roma)
Touch judges: Alessandro Cason (Rovigo), Angelo Sbordone (Roma)
Overmach Parma vs Ghial Calvisano
Referee: Stefano Mancini (Frascati)
Touch judges: Mauro Dordolo (Udine), Stefano Rosamilia (Frascati)
Serie A final
Futura Park Rugby Roma vs HDI UR Caputolina
Referee: Maurizio Vancini (Milano)
Touch judges: Claudio Castagnoli (Livorno), Pio Di Santo (Milano)
South Africa
Vodacom Cup Final
Valke vs Wildebeest at Bosman Stadium, Brakpan
Referee: Johann Meuwesen (Eastern Province)
Touch judges: Roderick Barry, Louis Mzomba (both Western Province)
Television match official: Phillip de Bruin (Golden Lions)
Timekeeper: Willie Vos (Golden Lions)
Spain
Copa de SM El Rey semifinales
Spyro Bera Bera vs Cetransa El Salvador
Referee: José Pardal (Sevilla)
Liceo Francés vs VRAC Quesos Entrepinares
Referee: Sabin Cortabarría (Vizcaya)
Copa de SM La Reina final
INEFC Barcelona vs Olímpico de Pozuelo
Referee: Felix Villegas (Valladolid)
Promoción División de Honor B/Primera Nacional
Oviedo vs Gaztedi
Referee: Fernando Raposo (Valladolid)
Inés Rosales vs Universidad de Granada
Referee: Paloma Loza (Madrid)