Head of the River Race

E677369

annual sporting event rowing race

The Head of the River Race is a major annual rowing event on London’s River Thames, featuring large eights crews racing in a processional time-trial format and serving as a key fixture of the UK rowing calendar.

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All labels observed (6)

Label	Occurrences
Head of the River Race canonical	4
Women’s Eights Head of the River Race	4
Head of the River	1
Head of the River Race Committee	1
Schools’ Head of the River Race	1
Vesta Veterans’ Head of the River Race	1

How this entity was disambiguated

This entity first appeared as the object of triple T7596834 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Head of the River Race
Context triple: [Oxford University Boat Club, associatedCompetition, Head of the River Race]

A. The Boat Race
The Boat Race is an annual rowing competition on the River Thames between the University of Oxford and the University of Cambridge, and one of the oldest and most famous amateur sporting events in the world.
B. The Women’s Boat Race
The Women’s Boat Race is an annual rowing race between the women’s crews of Oxford and Cambridge Universities, held on the River Thames as a counterpart to the historic men’s Boat Race.
C. Cambridge May Bumps
The Cambridge May Bumps are an annual series of traditional bumps rowing races held on the River Cam between the colleges of the University of Cambridge.
D. Stotesbury Cup Regatta
The Stotesbury Cup Regatta is one of the oldest and largest high school rowing competitions in the world, held annually on Philadelphia’s Schuylkill River.
E. Henley Royal Regatta
Henley Royal Regatta is a historic and prestigious annual rowing event held on the River Thames in England, attracting elite crews from around the world.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Head of the River Race
Target entity description: The Head of the River Race is a major annual rowing event on London’s River Thames, featuring large eights crews racing in a processional time-trial format and serving as a key fixture of the UK rowing calendar.

A. The Boat Race
The Boat Race is an annual rowing competition on the River Thames between the University of Oxford and the University of Cambridge, and one of the oldest and most famous amateur sporting events in the world.
B. The Women’s Boat Race
The Women’s Boat Race is an annual rowing race between the women’s crews of Oxford and Cambridge Universities, held on the River Thames as a counterpart to the historic men’s Boat Race.
C. Cambridge May Bumps
The Cambridge May Bumps are an annual series of traditional bumps rowing races held on the River Cam between the colleges of the University of Cambridge.
D. Stotesbury Cup Regatta
The Stotesbury Cup Regatta is one of the oldest and largest high school rowing competitions in the world, held annually on Philadelphia’s Schuylkill River.
E. Henley Royal Regatta
Henley Royal Regatta is a historic and prestigious annual rowing event held on the River Thames in England, attracting elite crews from around the world.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	annual sporting event ⓘ rowing race ⓘ
alsoKnownAs	HoRR ⓘ
boatClass	eights ⓘ
city	London ⓘ linked to: London, England
country	United Kingdom ⓘ
courseDirection	rowed on the ebb tide ⓘ
courseFinish	Putney ⓘ
courseLength	approximately 4.25 miles ⓘ approximately 6.8 kilometres ⓘ
courseStart	Mortlake ⓘ
eligibility	men’s eights ⓘ open eights ⓘ
firstRaceHeld	1926 ⓘ
foundedBy	Steve Fairbairn ⓘ
frequency	annual ⓘ
governingBody	British Rowing ⓘ
hasSpectators	yes ⓘ
inception	1926 ⓘ
language	English ⓘ
location	River Thames ⓘ linked to: Thames
notableFeature	key fixture of the UK rowing calendar ⓘ one of the largest eights races in the world ⓘ
organiser	Head of the River Race Committee ⓘ linked to: Head of the River Race
participantType	club crews ⓘ international crews ⓘ school and junior crews ⓘ university crews ⓘ
raceFormat	head race ⓘ processional time trial ⓘ
region	England ⓘ
relatedEvent	Head of the River Fours ⓘ Schools’ Head of the River Race ⓘ linked to: Head of the River Race Vesta Veterans’ Head of the River Race ⓘ linked to: Head of the River Race Women’s Eights Head of the River Race ⓘ linked to: The Women’s Boat Race
riskFactor	can be cancelled due to adverse weather or river conditions ⓘ
riverReach	Championship Course ⓘ
spectatorArea	along the Thames between Mortlake and Putney ⓘ
sport	rowing ⓘ
startOrderDeterminedBy	previous year’s results ⓘ
timingMethod	elapsed time between start and finish ⓘ
trophy	Head Pennant ⓘ overseas entrants pennant ⓘ various category pennants ⓘ
typicalEntryLimit	over 400 crews ⓘ
typicalSeason	end of the winter rowing season ⓘ
usualMonthHeld	March ⓘ
website	https://www.horr.co.uk/ ⓘ

How these facts were elicited

Referenced by (12)

Full triples — surface form annotated when it differs from this entity's canonical label.

Oxford University Boat Club → associatedCompetition → Head of the River Race ⓘ

Head of the River Amstel → alsoKnownAs → Head of the River ⓘ

subject linked to: Head of the River Amstel (rowing race)