The Six Nations reaches its end this weekend with lots of eyes on Cardiff where Wales have a chance of achieving the coveted Grand Slam. And the man to referee this huge match if Craig Joubert.

It's not quite the final round of the European Nations Cup (Six Nations B) which is decided over two years. There are still matches dribbling on to May and June.

In Japan there is the Final of the All-Japan Championship.

International

Six Nations

Italy vs Scotland at Stadio Olimpico
Referee: Alain Rolland (Ireland)
Assistant referees: George Clancy (Ireland), Pascal Gauzere (France)
Television match official: Nigel Whitehouse (Wales)

Wales vs France at Millennium Stadium
Referee: Craig Joubert (South Africa)
Assistant referees: Wayne Barnes (England), Stuart Terheege (England)
Television match official: Iain Ramage (Scotland)

England vs Ireland at Twickenham
Referee: Nigel Owens (Wales)
Assistant referees: Jérôme Garces (France), Neil Paterson (Scotland)
Television match official: Jim Yuille (Scotland)

European Nations Cup

Division 1A

Georgia vs Russia at Tbilisi
Referee: Mathieu Raynal (France)
 
Spain vs Romania vs Madrid
Referee: Cammy Rudkin (Scotland)
Assistant referees: Andrew Macpherson (Scotland), Adrian Graves (Scotland)

Ukraine vs Portugal in Odessa
Referee: Laurent Cardona (France)

Division 1B

Germany vs Belgium at Heusenstamm
Referee: Matteo Liperini (Italy)
Assistant referees: Stefano Roscini, Felipe Bertelli

Division 2B

Switzerland vs Slovenia in Nyon
Referee: Luc Janssens (Belgium)

Amateur

England Counties vs Ireland Clubs
Referee: Johann van der Merwe (Scotland)

Legends

England vs Ireland
Referee: Sean Davey (England)      

Under-20

England vs Ireland
Referee: tba (Italy)

Wales vs France
Referee: James Matthew (Scotland)
Assistant referees: Rob Dickson (Scotland), Bob Nevins (Scotland) 
Television match official: Iain Heard (Scotland)

Italy vs Scotland
Referee: Ian Davies (Wales)
Assistant referees: Rhys Thomas (Wales), Sean Brickell (Wales)
Television match official: Gareth Simmonds (Wales)

Under-18

Scotland vs England
Referee: Neil Hennessy (Wales)
Assistant referees: David Crudge (Scotland), Alan Forrest (Scotland)

Women

England vs Ireland
Referee: tba

Italy vs Scotland 
Referee: tba (France)

Wales vs France
Referee: Mhairi Hay (Scotland)

Super 15, Week 4

Chiefs vs Brumbies in Tauranga
Referee: Ian Smith (Australia)
Assistant referees: Vinny Munro (New Zealand), Nick Briant (New Zealand)
Television match official: Shane McDermott (New Zealand)

Stormers vs Blues at Newlands
Referee: Glen Jackson (New Zealand)
Assistant referees: Jaco Peyper (South Africa), Stefan Breytenbach (South Africa)
Television match official: Johann Meuwesen (South Africa)

Hurricanes vs Highlanders in Wellington
Referee: Bryce Lawrence (New Zealand)
Assistant referees: Keith Brown, Mike Fraser (New Zealand)
Television match official: Richard Kelly (New Zealand)

Waratahs vs Force in Sydney
Referee: Jonathon White (New Zealand)
Assistant referees: Steve Walsh (Australia), Angus Gardner (Australia)
George Ayoub (Australia)

Sharks vs Reds in Durban
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Mark Lawrence (South Africa), Cobus Wessels (South Africa)
Television match official: Shaun Veldsman (South Africa)

Rebels vs Cheetahs in Melbourne
Referee: Garratt Williamson (New Zealand)
Assistant referees: Andrew Lees (Australia), James Leckie (Australia)
Television match official: Steve Lesczcynski (Australia)

Pacific Rugby Cup

Chiefs vs Fiji A at Te Kuiti
Referee: Shane McDermott (New Zealand)
 
Hurricanes vs Samoa A at Porirua
Referee: Kane McBride (New Zealand)
 
Highlanders vs Tonga A at Logan Park, Dunedin
Referee: Vinny Munro (New Zealand)
 
LV= Final

Leicester Tigers vs Northampton Saints at Sixways
Referee: tba

Pro 12

Dragons  vs Cardiff Blues at Rodney Parade
Referee: Leighton Hodges (Wales)
Assistant referees: Gwyn Morris (Wales), Wayne Davies (Wales)
Television match official: Gareth Simmonds (Wales)

Domestic

France
 
Pro D2, Round 24

Narbonne vs La Rochelle
Referee: Jérôme Lamirand
Assistant referees: William Beraud, Jacques De Lemos
Goal judges: Pascal Vitrac, Jean-Christophe Clot
 
Béziers vs Auch
Referee: Akim Hadj Bachir
Assistant referees: Franck Hand, Franck Rataj
Goal judges: Laurent Gennero, Denis Grenouillet
 
Bourgoin vs Aix-en-Provence
Referee: Vincent Blasco
Assistant referees: Frédéric Masse, Jean-Michel Huguet
Goal judges: Francis Giacimini, Bruno Gaudefrin

Oyonnax vs Carcassonne
Referee: Christophe Labaune
Assistant referees: Walter Prache, Christophe Destruhaut
Goal judges: Mathieu Soulier, Laurent Amic
 
Périgueux vs Aurillac
Referee: Flavien Hourquet
Assistant referees: Pascal Lafond, Laurent Fillol
Goal judges: Charles Bonfanti, Bernard Lagardère
 
Mont-de-Marsan vs Pau
Referee: Eric Soulan
Assistant referees: Mourad Zitouni, Michel Couzier
Goal judges: Rémy Chastrusse, Jean-Paul Benoît
 
Grenoble vs Tarbes
Referee: Stéphane Boyer
Assistant referees: Raphaël Guaragna, Jean Punzano
Goal judges: Laurent Perrin, Stéphane Duberger
 
Albi vs Dax
Referee: Sébastien Cloute
Assistant referees: Pierre Courbin, Alain Falaise
Goal judges: Richard Nocart, Pascal Moreau
 
Japan
 
All-Japan Championship Final
 
Suntory Sungoliath vs Panasonic Wild Knights in Tokyo
Referee: Taizo Hirabayashi 

Scotland
    
Premier A8     
     
Boroughmuir vs Dundee HSFP
Referee: David Changleng
Assistant referees: Martin Hose Graham Allen

Aberdeen vs Stirling
Referee: Kevin White
Assistant referees: Damian Timson, Archie McInally

Currie vs Ayr
Referee: Andrew McMenemy
Assistant referees: Malcolm Changleng, Iain Bruce

Gala vs Melrose
Referee: Peter Allan
Assistant referees: Ted Coutts, Graeme Marshall

South Africa

Varsity Cup

12 March

Maties vs UCT
Referee: Ben Crouse
Assistant referees: Marius Van der Westhuizen, Daniel Fortuin
Television match official: Deon Van Blommestein,  Shaun  Veldsman
Assessor: Lusanda Menze
   
Tukkies vs NMMU
Referee: Lesego Legoete
Assistant referees: Local
Assessor: O’Connell Allan
   
Pukke vs UJ
Referee: Tiaan Jonker
Assistant referees: Oregopotse Rametsi, Local
Assessor: Hendricks Keith
   
Shimlas vs Tut
Referee: Quinton Immelman
Assistant referees: Jaco Kotze, Marlize Jordaan
Television match official: JC Fortuin
Assessor: Gerrit Coetzer
   
Shield

Wits vs UKZN
Referee:  François Groenewald
Assistant referees: Izan Dippenaar, Wilco Esterhuizen
Assessor: Theuns Naudé
   
CUT vs UWC 
Referee: Lusanda Jam
Assistant referees:  Pieter Janse van Vuuren, Local
Assessor: Arrie Schoonwinkel

Young Guns

Shimlas vs  TUT
Referee: Jaco Kotze
Assistant referees: Local
Assessor: Arrie Schoonwinkel
   
Pukke vs UJ 
Referee: Ricus van der Hoven
Assistant referees: Local
Assessor: Gerrit Coetzer

Maties vs NMMU 
Referee: Andrew Slater 
Assistant referees: Local
Assessor: Dennis Immelman 

Wales

Premiership

Neath vs Cross Keys 
Referee: Tim Hayes
Assistant referees: Greg Morgan, Neil Howells

Swansea vs Pontypool 
Referee: Kelvin Shorte
Assistant referees: Chris Williams, Adrian Lewis

Llandovery vs Llanelli 
Referee: Gwyn Morris
Assistant referees: Steve Nash, Terry Thomas

Pontypridd vs Bridgend 
Referee: Jon Mason
Assistant referees: David Williams, Gareth John

Aberavon vs Tonmawr
Referee: Martyn Lewis
Assistant referees: Elwyn Marfell, Steve Harwood