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Comparison

Winner: Source B is less manipulative

Source B appears less manipulative than Source A for this narrative.

Topics

London Marathon

Instant verdict

Less biased source: Source B
More emotional framing: Source A
More one-sided framing: Source A
Weaker evidence quality: Source A
More manipulative overall: Source A

Narrative conflict

Source A main narrative

Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday.

Source B main narrative

The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.

Conflict summary

Stance contrast: Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday. Alternative framing: The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.

Source A stance

Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday.

Stance confidence: 72%

Source B stance

The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.

Stance confidence: 56%

Central stance contrast

Stance contrast: Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday. Alternative framing: The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.

Why this pair fits comparison

  • Candidate type: Alternative framing
  • Comparison quality: 58%
  • Event overlap score: 44%
  • Contrast score: 68%
  • Contrast strength: Strong comparison
  • Stance contrast strength: High
  • Event overlap: Story-level overlap is substantial. Headlines describe a close episode.
  • Contrast signal: Stance contrast: Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday. Alternative framing: The 2027 London Marath…

Key claims and evidence

Key claims in source A

  • Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday.
  • Picture: Alamy By William Mata Ballot applicants for the 2027 TCS London Marathon will find out today if they have received a place in the first event to be held over two days, next April.
  • Runners will be informed by email on Tuesday, July 9, if they were among the lucky entrants to get a place - but all is not lost if this was not true for you.
  • The 2027 TCS London Marathon will be on Saturday, April 24, and Sunday, April 25.

Key claims in source B

  • The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.
  • The 2027 edition of the race will be run over two days for the first time.
  • It will take place on Saturday April 24 and Sunday April 25, allowing many more runners to participate.
  • The increased numbers will help tackle the demand for places, with 1.33 million people entering the ballot.

Text evidence

Evidence from source A

  • key claim
    Around 1.3 million entered the draw for next year's 26.2 mile (42km) challenge, which will be the first to have two separate runs, on the Saturday and Sunday.

    A key claim that anchors the narrative framing.

  • key claim
    Picture: Alamy By William Mata Ballot applicants for the 2027 TCS London Marathon will find out today if they have received a place in the first event to be held over two days, next April.

    A key claim that anchors the narrative framing.

  • causal claim
    In 2026, a record 59,000 entered the London Marathon and the demand for places led to organisers staging the race over two days for 2027.

    Cause-effect claim shaping how events are explained.

  • selective emphasis
    Tigst Assefa of Ethiopia ran a women's-only world record of 2 hours 15 minutes.

    Possible selective emphasis on specific aspects of the story.

Evidence from source B

  • key claim
    The 2027 London Marathon will see 100,000 people taking part in the capital’s first-ever double marathon.

    A key claim that anchors the narrative framing.

  • key claim
    The 2027 edition of the race will be run over two days for the first time.

    A key claim that anchors the narrative framing.

  • framing
    In the London Marathon MyWay, runners have the full day to complete the race - but the distance must be completed outdoors and cannot be completed on a treadmill.

    Wording that sets an interpretation frame for the reader.

Bias/manipulation evidence

How score signals are formed

Bias score signal Bias signal combines framing pressure, emotional wording, selective emphasis, and one-sided narrative markers.
Emotionality signal Emotionality rises when evidence contains emotionally loaded wording and evaluative labels.
One-sidedness signal One-sidedness rises when one frame dominates and alternative interpretations are weakly represented.
Evidence strength signal Evidence strength rises with concrete claims, attributed statements, and verifiable contextual support.

Source A

33%

emotionality: 29 · one-sidedness: 35

Detected in Source A
confirmation bias

Source B

26%

emotionality: 25 · one-sidedness: 30

Detected in Source B
framing effect

Metrics

Bias score Source A: 33 · Source B: 26
Emotionality Source A: 29 · Source B: 25
One-sidedness Source A: 35 · Source B: 30
Evidence strength Source A: 64 · Source B: 70

Framing differences

Possible omitted/downplayed context

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