Lars Anthonius Johannes Boom (born 30 December 1985) is a professional cyclo-cross and mountain bike racing cyclist from the Netherlands. He has also competed professionally in road racing, having raced between 2004 and 2019.

Born in Vlijmen, Netherlands, Boom has also previously competed for Rabobank and their junior and continental teams over two spells with the team, as well as Astana. Boom won the cyclo-cross world championships in 2008. He has also been the Dutch national cyclo-cross champion in his discipline from 2001 to 2012– junior cyclo-cross champion from 2002 to 2003, under-23 champion from 2004 to 2006, and the elite champion from 2007 to 2012.

Career

Rabobank Continental (2003–2008)

During the 2005–2006 cyclocross season, Boom who just turned 20 years of age, scored several wins including a win ahead of Sven Nys in the Grand Prix Sven Nys as well as the win in the Vlaamse Druivenveldrit Overijse after Bart Wellens was disqualified for having kicked a spectator. Boom was beaten by Zdeněk Štybar in a sprint for the Under 23 World Championships but returned a year later to dominate the race and to win the Under 23 World Champion jersey.

For the 2006–2007 season, Boom asked and received special dispensation to ride the Dutch Elite Cyclo Cross championships and became Champion of the Netherlands. In addition to Boom's successes in cyclo-cross, he has achieved success on the road and has won several stage races such as the Tour de Bretagne. In September 2007, Boom became Under 23 World Time Trial champion beating Russian Mikhail Ignatiev. In November 2007, Boom won the Gerrit Schulte Trophy as the Dutch cyclist of the year for his two World Championship wins. In the 2007–2008 Cyclo-cross season, Boom won a World Cup event in Pijnacker, a Gazet van Antwerpen event in Loenhout and then became Dutch Elite National cyclo-cross champion for the second time. After that, he also won the World Cup races in Liévin and Hoogerheide. He went into the world championships in Treviso 2008 as big favourite and did not fail, he won the race and became the second rider after Radomír Šimůnek to win the world title in all categories (Junior, Espoir and Elite).

During the 2008 road season, Boom continued his progression on the road despite a successful cyclocross season. On his third day of racing on the road, he won the third stage of the Tour de Bretagne in Fréhel. Boom also won the sixth stage time trial. Boom then dominated the oldest stage race in the Netherlands– the Olympia's Tour. After competing in two stage races in Spain in which he won the first and won three stages in the second, Boom returned to the Netherlands where he won the Dutch national road race championships for elite riders. He would win the national time trial title several weeks later after which he announced that he intended on switching focus from cyclo-cross to road racing after the 2008/09 cyclo-cross season.

Rabobank (2009–2014)

In 2009 Boom won the Tour of Belgium after a strong performance uphill, and in the final Time Trial. In his first Vuelta a España, he was part of a break of 12 riders in the 15th stage. He rode away on the final climb and took the stage, making him the first Dutchman to win a stage in a Grand Tour since 2005.

Boom started the 2010 season by winning the Dutch national cyclocross championships. This was only his second and last cross of the season he rode. In the prologue of Paris–Nice he bested time-trial giants Jens Voigt, Levi Leipheimer, Alberto Contador and David Millar. During the winter of 2010–2011 Boom made a short return to cyclocross, he won the World Cup race in Zolder and won for the fifth consecutive time the Dutch national cyclocross championships. In 2011 he was again the fastest in a prologue of a World Tour event: the Critérium du Dauphiné. Later that year he won two stages and the general classification in the Tour of Britain.

Boom won the Dutch Cyclocross Championship for the sixth consecutive time in January 2012, extending his consecutive streak record.

In 2014 Boom won the fifth stage of the Tour de France, a stage marked by difficulty due to wet conditions and significant sections of cobblestones. The stage was his first win of 2014 and came nine years to the day after the previous victory by a Dutch rider (Pieter Weening) in the Tour de France.

Astana (2015–2016)

Subsequently, Boom announced that he would be leaving Belkin and joining Astana for the 2015 and 2016 seasons.

Coming into the Tour de France, Boom's notable results of the 2015 campaign were fourth in Paris–Roubaix and sixth in the Tour of Flanders. There was some controversy at the beginning of the Tour, as Boom's cortisol levels were too low in his blood per MPCC rules to participate in a cycling event, but the Astana management decided to field him anyway. Boom blamed his asthma inhaler for his low cortisol levels.

LottoNL–Jumbo (2017–2018)

After two seasons with Astana, Boom announced in August 2016 he would be joining LottoNL–Jumbo.

In January 2018 Boom had a successful heart surgery to treat a cardiac arrhythmia. Boom returned to racing for the Paris–Nice in March.

In May 2018, Boom was expelled from the Tour of Norway for aggression against Belgian rider Preben Van Hecke. Video images showed some kind of incident where Van Hecke had to brake and Boom was upset about this. He overtook Van Hecke and punched him and attacked his helmet during the race. On 2 July, the UCI suspended him for a month, missing the Tour de France as a result.

Retirement from road racing

In December 2019, Boom announced that he was retiring from road racing after being unable to find a contract for 2020, due to his Roompot–Charles team folding at the end of the season.

He was a directeur sportif for UCI Women's World Tour team Liv Racing for the 2021 season and for SD Worx from 2022 to 2024. For the 2025 season he joined FDJ–Suez.

Major results

Cyclo-cross

2001–2002

1st National Junior Championships

2002–2003

1st UCI World Junior Championships

1st National Junior Championships

1st Overall Junior Superprestige 1st Sint-Michielsgestel 1st Gavere 1st Gieten 1st Diegem 1st Hoogstraten 1st Harnes 3rd Vorselaar

2003–2004

1st National Under-23 Championships

UCI Under-23 World Cup 1st Koksijde 3rd Nommay

2004–2005

1st UEC European Under-23 Championships

1st National Under-23 Championships

3rd Overall Under-23 Superprestige 1st Ruddervoorde 2nd Hamme 3rd Gieten

2005–2006

1st National Under-23 Championships

1st Overijse

Gazet van Antwerpen 1st Baal

UCI Under-23 World Cup 1st Hoogerheide

2nd UCI World Under-23 Championships

Superprestige 3rd Gieten

2006–2007

1st UCI World Under-23 Championships

1st National Championships

UCI Under-23 World Cup 1st Hoogerheide 2nd Nommay

1st Heerlen

Gazet van Antwerpen 2nd Baal

3rd Eeklo

2007–2008

1st UCI World Championships

1st National Championships

UCI World Cup 1st Pijnacker 1st Liévin 1st Hoogerheide 3rd Tábor 3rd Koksijde 3rd Hofstade

Gazet van Antwerpen 1st Loenhout 2nd Niel 2nd Essen 3rd Oostmalle

1st Mechelen

1st Zeddam

2nd Heerlen

Superprestige 3rd Gieten

2008–2009

1st National Championships

UCI World Cup 1st Pijnacker 1st Nommay 2nd Milan

Gazet van Antwerpen 1st Niel 2nd Koppenberg

1st Surhuisterveen

Superprestige 2nd Veghel-Eerde

2nd Overijse

2nd Woerden

2009–2010

1st National Championships

2010–2011

1st National Championships

UCI World Cup 1st Heusden-Zolder

1st Leudelange

2011–2012

1st National Championships

2012–2013

2nd National Championships

2016–2017

2nd Surhuisterveen

UCI World Cup results

Season123456789RankPoints
2007–2008KAL 18TAB 3PIJ 1KOK 3IGOMILHOF 3LIE 1HOO 1n/an/a
2008–2009KAL 10TAB 9PIJ 1KOKIGONOM 1ZOL 4ROU 6MIL 25426
2010–2011AIGPLZKOKIGOKALZOL 1PONHOO4180
2011–2012PLZTABKOKIGONAM 28ZOL 7LIEHOO4571
2015–2016LASVALKOKNAMZOL 43LIGHOO888
2016–2017LASIOWVALKOK NHZEVNAMZOL 11FIU DNFHOO5940

Road

2004

1st Stage 2 Triptyque Ardennais

3rd Overall Circuit de Lorraine

2005

1st Young rider classification, Triptyque des Barrages

1st Stage 2 Grand Prix de la Somme

2nd Overall Hessen-Rundfahrt

10th Grand Prix de la ville de Pérenchies

2006

1st Overall Volta ao Distrito de Santarém 1st Stage 3 (ITT)

1st Overall Le Triptyque des Monts et Châteaux 1st Stage 2 (ITT)

1st Stage 3a (ITT) Thüringen Rundfahrt der U23

2nd Time trial, National Under-23 Championships

2007

1st Time trial, UCI World Under-23 Championships

1st Time trial, National Under-23 Championships

1st Overall Tour de Bretagne 1st Young rider classification 1st Prologue & Stage 5 (ITT)

1st Omloop der Kempen

1st Prologue Tour de Normandie

3rd Overall Volta ao Distrito de Santarém

3rd Overall Tour du Poitou-Charentes

4th Overall Olympia's Tour 1st Prologue, Stages 4 & 6 (ITT)

6th Grand Prix de la Somme

2008

National Championships 1st Road race 1st Time trial

1st Overall Olympia's Tour 1st Stages 7 (ITT) & 8

1st Overall Volta a Lleida 1st Stage 8

Circuito Montañés 1st Stages 1, 5a (ITT) & 7

Tour de Bretagne 1st Stages 3 & 6 (ITT)

1st Stage 4 Vuelta Ciclista a León

2009

1st Overall Tour of Belgium

1st Stage 15 Vuelta a España

7th Overall Sachsen Tour

2010

1st Grote Prijs Jef Scherens

1st Prologue Paris–Nice

3rd Road race, National Championships

5th E3 Prijs Vlaanderen

6th Overall Eneco Tour

2011

1st Overall Tour of Britain 1st Stages 3 & 6

1st Prologue Critérium du Dauphiné

1st Prologue Tour of Qatar

1st Stage 1 (TTT) Tirreno–Adriatico

9th Gent–Wevelgem

10th Omloop Het Nieuwsblad

2012

1st Overall Eneco Tour

2nd Overall Ster ZLM Toer 1st Stage 3

National Championships 2nd Road race 2nd Time trial

2nd Ronde van Zeeland Seaports

5th Road race, UCI World Championships

6th Paris–Roubaix

2013

1st Overall Ster ZLM Toer 1st Stage 4

1st Profronde van Heerlen

1st Profronde van Zevenbergen

1st Points classification, Eneco Tour

1st Stage 2 (ITT) Tour Méditerranéen

2nd Overall Tour du Haut Var 1st Stage 2

3rd Profronde van Oostvoorne

4th Binche–Chimay–Binche

2014

1st Stage 5 Tour de France

2nd Overall Eneco Tour

2015

1st Stage 1 Danmark Rundt

4th Paris–Roubaix

6th Tour of Flanders

2016

6th E3 Harelbeke

2017

1st Overall Tour of Britain 1st Stage 5 (ITT)

4th Veenendaal–Veenendaal Classic

8th Overall BinckBank Tour 1st Stage 5

2019

4th Le Samyn

8th Clásica de Almería

Grand Tour general classification results timeline

Grand Tour2009201020112012201320142015201620172018
Giro d'ItaliaDid not contest during career
Tour de France130DNF10597DNF
Vuelta a España55107153

Monuments results timeline

Monument20092010201120122013201420152016201720182019
Milan–San Remo94112325125
Tour of Flanders7637DNF119361197DNF
Paris–RoubaixOTL12614374DNFDNF74
Liège–Bastogne–LiègeDNF
Giro di Lombardia100
Legend
Did not compete
DNFDid not finish

Mountain bike

2017

1st Marathon, National Championships

2018

1st Beach race, UEC European Championships

1st Marathon, National Championships

2019

2nd Marathon, National Championships

See also

External links

  • atCycling Archives()
  • atProCyclingStats
Sporting positions
PrecededbyKoos MoerenhoutDutch National Road Race Championships Winner 2008SucceededbyKoos Moerenhout
PrecededbyStef ClementDutch National Time Trial Championships Winner 2008SucceededbyStef Clement