As things get heated in Europe's club competitions, the Super 15 is well in its stride. Craig Joubert will tell you that refereeing can be a ticket to see the world.

The recent appointments for the man who refereed the World Cup Final in Auckland, New Zealand, have been Durban, Dublin, Bloemfontein, Cardiff, Mexico City and now Cape Town. That's intercontinental refereeing. And his match in Cape Town has been sold out for weeks.

In Pro 12, Giuseppe Vivarini of Italy will be refereeing his first match in that competition.

International

European Nations Cup

Romania vs Ukraine in  Bucharest
Referee: Stéphane Pomarède (France)

Under-18

The European champions ship starts this weekend.

Referees: tba

Sevens

The IRB Sevens Series moves to Tokyo this weekend after the fun and games in Hong Kong.

Referees: Federico Anselmi (Argentina), Akihisa Aso (Japan), Jason Jaftha (South Africa), James McPhail (New Zealand), Anthony Moyes (Australia), Matthew O'Brien (Australia), Luke Pearce (England), Alexandre Ruiz (France)

Super 15 Week 6

Highlanders vs Rebels in Invercargill
Referee: Marius Jonker (South Africa)
Assistant referees: Vinny Munro (New Zealand), Matthew Muir (New Zealand)
Television match official: Kane McBride (New Zealand)

Hurricanes vs Cheetahs in Wellington
Referee: Ian Smith (Australia)
Assistant referees: Chris Pollock (New Zealand), Richard Kelly (New Zealand)
Television match official: Mike Fraser (New Zealand)

Chiefs vs Waratahs in Hamilton
Referee: Lourens van der Merwe (South Africa)
Assistant referees: Jonathon White (New Zealand), Glen Jackson (New Zealand)
Television match official: Shane McDermott (New Zealand)

Brumbies vs Sharks in Canberra
Referee: Keith Brown (New Zealand)
Assistant referees: Angus Gardner (Australia), James Leckie (Australia)
Television match official: Matt Goddard (Australia)

Force vs Reds in Perth
Referee: Garratt Williamson (New Zealand)
Assistant referees: Steve Walsh (Australia), Andrew Lees (Australia)
Television match official: George Ayoub (Australia)

Lions vs Crusaders in Johannesburg
Referee: Jonathan Kaplan (South Africa)
Assistant referees: Jaco Peyper (South Africa), Reuben Rossouw (South Africa)
Television match official: Johann Meuwesen (South Africa)

Stormers vs Bulls at Newlands
Referee: Craig Joubert  (South Africa)
Assistant referees: Stuart Berry (South Africa), Cobus Wessels (South Africa)
Television match official: Shaun Veldsman (South Africa)
 
Pro 12
 
Edinburgh vs Scarlets
Referee: Peter Fitzgibbon (Ireland)
Assistant referees: Peter Allan (Scotland), Graeme Marshall (Scotland) 
Assessor: Fergus Neil (Scotland)

Glasgow vs Cardiff
Referee: George Clancy (Ireland)
Assistant referees: Rob Dickson (Scotland), Adrian Graves (Scotland)
Television match official: Jim Yuille (Scotland)
Assessor: Gordon McMurray (Scotland)

Ulster vs Aironi
Referee: Neil Paterson (Scotland)
Assistant referees: Dudley Phillips (Ireland), Johan Carvill (Ireland) (Ireland)
Television match official: Peter Ferguson (Ireland)
Assessor: Brian Stirling (Ireland)

Ospreys vs Benetton Treviso
Referee: Alain Rolland (Ireland)
Assistant referees: Tim Hayes (Wales), Ian Davies (Wales)
Television match official: Tony Rowlands (Wales)

Munster vs Leinster
Referee: Nigel Owens (Wales)
Assistant referees: David Wilkinson (Ireland), Michael Black (Ireland)
Television match official: Marshall Kilgore (Ireland)
Assessor: John Sheehan (Ireland)

Newport Gwent Dragons vs Connacht at Rodney Parade
Referee: Giuseppe Vivarini (Italy)
Assistant referees: James Jones (Wales), David Jones (Wales)
Television match official: Neil Ballard (Wales)

Domestic

England

Leicester Tigers vs Worcester Warriors
Referee: Wayne Barnes 
Assistant referees: Paul Dix  Nigel Carrick 
Television match official: David Matthews
Timekeeper: Anthony Turner
Coach: Anthony Spreadbury 

Newcastle Falcons vs Sale Sharks
Referee: David Rose 
Assistant referees: Don Helme  Alan Hughes
Television match official: David Hudson
Timekeeper: Nigel Yates 

Exeter Chiefs vs London Irish 
Referee: David Pearson 
Assistant referees: Paul Burton, Ashley Rowden 
Timekeeper: Laurie Bryant 
Coach: Ashley Reay

Saracens vs Harlequins 
Referee: Greg Garner 
Assistant referees: Stuart Terheege, Robin Goodliffe 
Television match official: David Grashoff
Timekeeper: Roy Marfleet
Assessor: Gary Welsh 

Bath vs Northampton Saints
Referee: Martin Fox 
Assistant referees: Peter Huckle, Andrew Pearce 
Television match official: Geoffrey Warren
Timekeeper: Brian Abrahams 
Assessor: Ed Morrison 

London Wasps vs Gloucester
Referee: Andrew Small 
Assistant referees: Alan Biggs, Gareth Copsey 
Television match official: John Burtenshaw 
Assessor: Brian Campsall 

France

Racing Métro vs Castres at Stade Yves Du Manoir (Colombes)
Referee: Cédric Lafon
Assistant referees: Pascal Gauzere, Jean-Michel Schutz
Television match official: Gilles Cogne

Biarritz vs Clermont at Parc Des Sports d'Aguilera
Referee: Mathieu Raynal
Assistant referees: Cédric Marchat, Thomas Dejean
Television match official: Hervé Dubes

Perpignan vs Bayonne at Stade Aimé Giral
Referee: Franck Maciello
Assistant referees: Akim Hadj Bachir, Régis Gabard
Television match official: Bruno Bessot
 
Lyon vs Bordeaux-Bègles  at Matmut Stadium
Referee: Jérôme Garces
Assistant referees: Christophe Dutreuilh, Patrick Beuriot
Television match official:  Eric Gauzins

Brive vs Toulon at Stade Amédée Domenech
Referee: Laurent Cardona
Assistant referees: Patrick Pechambert, Sébastien Hebert
Television match official: Jean-Pierre  Pellaprat
 
Montpellier vs Agen at Stade Yves Du Manoir (Montpellier)
Referee: Sébastien Cloute
Assistant referees: Jean-Luc Rebollal, Jérôme Lamarque
Television match official: Eric Gonthier
 
Stade Français vs Toulouse  at Stade de France (Saint-Denis)
Referee: Romain Poite
Assistant referees: Christophe Berdos, Pascal Ubeda
Television match official: Denis Gillet
 
 Pro D2, Round 25

Tarbes vs Bourgoin  at  Stade Maurice-Trélut
Referee: Laurent Millotte
Assistant referees: Nicolas Lezin/, Franck Bernos
Goal judges: Michael Richard, Christophe Destruhaut
 
Grenoble vs Narbonne  at  Stade Lesdiguières
 Referee: Flavien Hourquet
 Assistant referees: William Beraud, Laurent Breil
 Goal judges: Laurent Royer, Jean-Michel  Huguet
 
Aix-en-Provence vs Albi at  Parc Des Sports d'Avignon
Referee: David Rosich
Assistant referees: Luigi Gaborit, Alain Monteux
Goal judges: Christophe Gaillardon, Jean Punzano
 
Dax vs Oyonnax at  Stade Maurice Boyau
Referee: Alain Blondel
Assistant referees: Alexandre Vallon, Denis Grenouillet
Goal judges: Jean-Christophe Lacrampe Moine, Michel Couzier
 
Carcassonne vs Pau at  Stade Albert-Domec
Referee: Sébastien Boyer
Assistant referees: Fabien Cartault, Pierre Chastrusse
Goal judges: Maxime Chalon, Lionel Fillol
 
Aurillac  vs Mont-de-Marsan at  Stade Jean-Alric
Referee: Nicolas Datas
Assistant referees: Frédéric Chazal, Jean-Claude  Labarbe
Goal judges: Julien Castaignède, Emmanuel Rosich
 
La Rochelle vs Auch  at  Stade Marcel Deflandre
Referee: Eric Soulan
Assistant referees: Fabien Soucaret, Eric Sentucq
Goal judges: Philippe Lecomte, Frédéric Gourgues

Périgueux vs Béziers at  Francis-Rongiéras
Referee: Salem Attalah
Assistant referees: Mourad Zitouni, Thierry Cazalet
Goal judges: J Durand, Jean-Claude  Pairault
 
Ireland
 
Ulster Bank League
 
Division 1A
 
Blackrock vs Dolphin
Referee: Barrie O' Connell
 
Clontarf vs Garryowen
Referee: Dudley Phillips
 
Cork Constitution vs St Mary's
Referee: John Lacey
 
Lansdowne vs Young Munster
Referee: Leo Colgan
 
Old Belvedere vs Shannon
Referee: Mark Patton
 
Division 1B
 
 Ballymena vs Belfast Harlequins
 Referee: Peter Haycock
 
 Bruff vs Dungannon
 Referee: Ollie Hodges
 
 Buccaneers vs UCC
 Referee: Richard Kerr
 
 UL Bohemians vs Galwegians
 Referee: David Keane
 
 UCD vs Ballynahinch
 Referee: Dave O'Flynn

Scotland

Premier Cup 
 
Ayr vs Boroughmuir
Referee: Peter Allan
Assistant referees: Johann van der Merwe, Digby Thomas 

Dundee HSFP vs Gala
Referee: Cammy Rudkin
Assistant referees: Jean-Marie, Burel Iain Bruce

South Africa

Vodacom Cup

Sharks XV vs South Western Districts Eagles at Mr Price Kings Park, Durban
Referee: Jaco Peyper
 Assistant referees: Sindile Mayende, Archie Sehlako
 
Eastern Province Kings vs Free State XV at Nelson Mandela Bay Stadium, Port Elizabeth 
Referee: Joey Salmans
Assistant referees: Christie du Preez, Fumanekile Yamile
TMO Johann Meuwesen

Pampas XV vs Boland Cavaliers
Referee: Tiaan Jonker
Assistant referees: Quinton Immelman, Local
Assessor: Hendricks Keith
 
Border Bulldogs vs Western Province at BCM Stadium, East London 
Referee: Sindile Mayende
 Assistant referees: Lusanda Jam, Local  

Leopards vs Blue Bulls at Olën Park, Potchefstroom 
Referee: Rasta Rashivenga
 Assistant referees: Mlungiseli Mdashe, Local
Assessor: Yantolo Banks

Golden Lions vs The Griffons
Referee: Ben Crouse
Assistant referees: Gerrie de Bruin, Pieter de Villiers
Television match official: Johann Meuwesen
Assessor: Menze Lusanda

Pumas vs Griquas at Pumas Stadium, Witbank
Referee: Lesego Legoete
Assistant referees: Jaco van Heerden, Local
Assessor: Willie Roos

Varsity Cup

26 March

Varsity Cup Semifinals

Maties vs UJ at Danie Craven Stadium, Stellenbosch
Referee: Marius van der Westhuizen
Assistant referees: Ben Crouse, Marc van Zyl
Television match official: JC Fortuin, Deon van Blommestein

Tukkies vs Pukke at Tuks Rugby Stadium, Pretoria
Referee: Quinton Immelman
Assistant referees: Tiaan Jonker, Stefan Breytenbach
Television match official: Shaun Veldsman, Johan Greeff

Varsity Shield

Fort Hare vs CUT at Davidson Rugby Stadium, Alice
Referee: Archie Sehlako

UKZN vs UWC at Peter Booysen Sports Park, Pietermaritzburg
Referee: Gerrie de Bruin
Assessor: Allan O'Connell

Young Guns

Maties vs Shimlas at Danie Craven Stadium, Stellenbosch
Referee: Daniel Fortuin
Assistant referees: Hein Gericke, Marc van Zyl
Assessor: Dennis Immelman

Tukkies vs Pukke at Tuks Rugby Stadium, Pretoria
Referee: Jaco Kotze
Assistant referees: Stephan Geldenhuys, Eduan Nel
Assessor: Pierre Oelofse

 
Wales

Premiership

Pontypool vs Llanelli
Referee: Phil Fear
Assistant referees: Tim Davies, Robert Price

Carmarthen Quins vs Bedwas 
Referee: Gareth Butler
Assistant referees: Jason Griffiths, Stuart Vaudin

Cross Keys vs Aberavon 
Referee: Wayne Davies
Assistant referees: Kelvin Shorte, Robert Hale

Pontypridd vs Neath 
Referee: Neil Hennessy
Assistant referees: Matthew Thomas, Simon Harris

Newport vs Swansea 
Referee: Chris Williams
Assistant referees: Paul Richards, Owain Griffiths

Tonmawr vs Llandovery 
Referee: Greg Morgan
Assistant referees: Neil Perkins, Morgan Whitehead

Llanelli vs Cardiff 
Referee: Sean Brickell
Assistant referees: Jason Bessant, Peter Evans