Sports09/24/2026@SportDesk
130th Boston Marathon: Korir Breaks the Course Record in 2:01:52
Boston Athletic AssociationBoston Marathon Finish Line, 665, Boylston Street, Back Bay, Boston, Suffolk County, Massachusetts, 02116, United States
Starts 04/20/2026 1:06PMCONFIRMED 85% CONFIDENCE157 days agoStated as firm, per the B.A.A.'s race report: "The 130th Boston Marathon took place on Monday, April 20, 2026", with the first start from the B.A.A.'s daily advisory: "9:06 A.M. ET – Wheelchair Division – Men" (13:06 UTC, EDT).^[1]
John Korir of Kenya defended his title in 2:01:52, more than a minute under Geoffrey Mutai's 2011 course record, with the next two men also under the old mark. Sharon Lokedi repeated in 2:18:51 and Marcel Hug won the wheelchair race for a ninth time.
0.80
Sports09/24/2026@SportDesk
The 131st Boston Marathon Runs on Patriots' Day 2027
Boston Marathon Finish Line, 665, Boylston Street, Back Bay, Boston, Suffolk County, Massachusetts, 02116, United StatesBoston Athletic Association
Starts 04/19/2027SCHEDULED 85% CONFIDENCEin 207 daysGiven as scheduled on the B.A.A.'s Boston Marathon page: "Boston Marathon Apr 19th, 2027 ... 131st BOSTON MARATHON PRESENTED BY BANK OF AMERICA ... 30,000 participants will race on Patriots' Day"; no start times have been published yet.^[1]
About 30,000 runners are due to race from Hopkinton to Boylston Street on Monday 19 April 2027, after a record 33,656 qualifiers applied for places. It is the first Boston Marathon with a random draw for about 1,000 qualifiers who miss the cut-off time.
0.63
Sports09/24/2026@SportDesk
Head of the Charles Regatta 2026 Races on the Charles River
Eliot Bridge, Coolidge Hill, West Cambridge, Cambridge, Middlesex County, Massachusetts, 02163, United StatesHead of the Charles Regatta
10/16/2026 - 10/18/2026SCHEDULED 79% CONFIDENCEin 22 daysGiven as scheduled in the regatta's own site banner: "HEAD OF THE CHARLES REGATTA - OCT. 16-18, 2026", with a countdown to the 2026 regatta on the history page.^[1]
The world's largest three-day rowing event returns to the Charles River between Boston and Cambridge on 16-18 October 2026, with nearly 12,000 athletes and more than 370,000 spectators expected. Crews race a head course of about three miles against the clock, starting roughly fifteen seconds apart.
0.58
Weather09/24/2026@ClimateDesk
Boston Hits 102 Degrees, Its Hottest June Day on Record
National Weather ServiceLogan International Airport, 1, Harborside Drive, East Boston, Boston, Suffolk County, Massachusetts, 02128, United States
Starts 06/24/2025CONFIRMED 86% CONFIDENCE1.3 years agoStated as fact, per WBUR^[1] (24 Jun 2025): "Hottest June day ever: Boston reached 102 degrees Tuesday" - Tuesday being 24 June 2025.
Logan Airport reached 102 degrees on 24 June 2025, beating Boston's 100-degree June record from 2021, 1952 and 1925, with a heat index near 110. It fell just 2 degrees short of the city's all-time high of 104, set on 4 July 1911.
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Transport09/15/2026@BuildDesk
The Brooklyn Bridge Opens
Brooklyn Bridge, New York, NY, USA
Starts 05/24/1883CONFIRMED 82% CONFIDENCE143.3 years agoHappened as dated, per the source^[1]: "Brooklyn Bridge opens | May 24, 1883".
New York's Brooklyn Bridge opened to the public, completing a 13-year construction effort that Emily Warren Roebling steered to completion after her husband was incapacitated by decompression sickness.
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Gaming09/15/2026@BuildDesk
Olympia Looping Debuts as the World's Largest Transportable Roller Coaster at Oktoberfest
Theresienwiese, 80336 München, GermanyR. Barth und Sohn Schaustellerbetriebe
Starts 09/17/1989CONFIRMED 84% CONFIDENCE37.0 years agoCoasterpedia^[3] and Wikipedia^[4] both date the Olympia Looping's Oktoberfest^[2] debut to 17 September 1989.
The 34-meter, five-loop Olympia Looping premiered at Munich's Oktoberfest on 17 September 1989, becoming the largest portable roller coaster ever built and the only one with five inversions.
0.53
Sports09/24/2026@SportDesk
Bay to Breakers 2027 Runs From the Bay to Ocean Beach
Howard Street, South of Market, Financial District, San Francisco, California, 94105, United States
Starts 05/16/2027SCHEDULED 78% CONFIDENCEin 234 daysScheduled, per the race's 12K page: "Run the iconic Bay to Breakers^[1][2] 12K in San Francisco on May 16, 2027!".
San Francisco's costumed 12K, run since 1912, crosses the city from Howard and Fremont streets to the Great Highway on Sunday, May 16, 2027.
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Transport09/15/2026@BuildDesk
Hong Kong-Zhuhai-Macau Bridge Opens as the World's Longest Sea Crossing
港珠澳大橋香港口岸 Hong Kong-Zhuhai-Macao Bridge Hong Kong Port, 離島區 Islands District, 新界 New Territories, 香港, 中国
Starts 10/24/2018CONFIRMED 85% CONFIDENCE7.9 years agoHappened as dated, per the source^[1]: "On 24 October 2018 the HZMB was opened to the public after its inauguration a day earlier."
The 55km Hong Kong-Zhuhai-Macau Bridge opened to traffic on 24 October 2018, linking the three Pearl River Delta cities with cable-stayed bridges, artificial islands and an undersea tunnel.
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Mining09/15/2026@BuildDesk
Polymetal Installs Its Record 1,100-Tonne Gold Autoclave at Amursk
Amursk, Khabarovsk Krai, RussiaPolymetal International
Starts 08/17/2020CONFIRMED 87% CONFIDENCE6.1 years agoInternational Mining reported on 17 August 2020 that Polymetal's 1,100-tonne autoclave vessel had been installed on schedule at the Amursk POX-2 site.^[1]
Belgian engineering firm Coek Engineering built the world's largest gold-processing autoclave, a 1,100-tonne titanium-lined pressure vessel, and shipped it 25,000 km from Antwerp to Polymetal's Amursk POX-2 plant in Russia's Far East. The vessel was installed on schedule in August 2020.
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Music09/24/2026@MusicDesk
Boston Calling Returns After Its 2026 Gap Year
C3 PresentsHarvard Athletic Complex, South Campus Drive, Barry's Corner, Allston, Boston, Suffolk County, Massachusetts, 02163, United States
06/04/2027 - 06/06/2027SCHEDULED 76% CONFIDENCEin 253 daysGiven as scheduled on the festival's own site: "Boston Calling^[1] Music Festival | Boston, MA | June 4 - 6, 2027 ... SEE YOU IN 2027", matching the organisers' post quoted by Boston.com^[3]: "an exciting return on a new weekend: June 4-6, 2027."
New England's largest music festival comes back to the Harvard Athletic Complex on 4-6 June 2027, a new weekend after years on Memorial Day, having skipped 2026. Mayor Michelle Wu linked the gap year to the strain of Boston's 250th and World Cup events.
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Architecture09/15/2026@BuildDesk
One Za'abeel Opens With the World's Longest Cantilever
One Za'abeel, Dubai, UAEIthra Dubai
Starts 02/10/2024CONFIRMED 80% CONFIDENCE2.6 years agoHappened as dated, per the source^[1]: "The development was completed in December 2023 and officially opened on 10 February 2024."
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AED 3.7B
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Transport09/15/2026@BuildDesk
Great Indian Peninsula Railway Runs India's First Passenger Train
Bori Bunder (now Chhatrapati Shivaji Maharaj Terminus), Mumbai, IndiaGreat Indian Peninsula Railway
Starts 04/16/1853CONFIRMED 86% CONFIDENCE173.4 years agoConfirmed by IRFCA's^[3] Indian Railways history FAQ and multiple independent sources, which date India's first passenger train from Bori Bunder to Thane to April 16, 1853.
On April 16, 1853, the Great Indian Peninsula Railway ran the first passenger train in India and Asia, carrying about 400 guests roughly 34km from Bombay's Bori Bunder to Thane.
0.52

Stated as firm, per the B.A.A.'s race report datelined "BOSTON (21-April)" on the 129th Boston Marathon it describes as having played out, with the first start from the B.A.A.'s race-eve media notes: "9:06 a.m. ET – Wheelchair Division – Men" (13:06 UTC, EDT).^[1]

Start: Apr 21, 202590% CONFIDENCEfrom the source

129th Boston Marathon: Lokedi Sets a Course Record, Korir Wins

Sharon Lokedi of Kenya won the women's race in 2:17:22, breaking the 2014 course record of 2:19:59, and John Korir won the men's race in 2:04:45 after falling in the opening meters. Marcel Hug took his eighth wheelchair title on the 250th anniversary of Patriots' Day.

The 129th Boston Marathon ran on Patriots' Day, Monday 21 April 2025, from Hopkinton to the Boylston Street finish; the wheelchair men started at 9:06 a.m. ET, the professional men at 9:37 and the professional women at 9:47^[4]
Sharon Lokedi of Kenya held off two-time defending champion Hellen Obiri to win in 2:17:22, breaking the course record of 2:19:59 set in 2014; Obiri (2:17:41) and Yalemzerf Yehualaw (2:18:06) also finished under the old record^[1]
John Korir of Kenya fell after being clipped early in the race, then broke away at 20 miles to win in 2:04:45, the second-fastest winning time in race history; his brother Wesley won in 2012^[1]
American Conner Mantz finished fourth in 2:05:08, the second-fastest time by an American in race history, after a three-way sprint down Boylston Street^[1]
Marcel Hug won the men's wheelchair race in 1:21:34 for his eighth Boston title, and Susannah Scaroni won the women's in 1:35:20 for her second^[1]
2018 champion Des Linden announced on race morning that it was her last professional marathon and ran 2:26:19 to win the masters division^[1]
The official entry list held 32,080 runners from all 50 U.S. states and 118 countries^[2]
Runners and the 176 non-profits of the official charity program raised a record $50.4 million, beating the previous year's $45.7 million^[3]

@SportDesk

References 485% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]90%
baa.org/news/memorable-129th-boston-marathon-presented-bank-america-plays-out-start-finish
baa.org· Posted Sep 24, 2026· Starts Apr 21, 2025 ✓· 44% of score
Stated as firm, per the B.A.A.'s race report datelined "BOSTON (21-April)" on the 129th Boston Marathon it describes as having played out, with the first start from the B.A.A.'s race-eve media notes: "9:06 a.m. ET – Wheelchair Division – Men" (13:06 UTC, EDT).
[2]80%
2025 Boston Marathon
en.wikipedia.org· Added Sep 24, 2026· 44% of score
Encyclopedia article on the 129th edition, held Monday 21 April 2025; gives the 32,080-runner entry list and the results.^[1]
[3]85%
Record $50.4 Million Raised for Charitable Causes Through 2025 Boston Marathon presented by Bank of America
baa.org· Published Jun 4, 2025· 7% of score
The B.A.A.'s own tally of the 2025 race's charity fundraising: a record $50.4 million across 176 non-profits.^[1]
[4]90%
Media Notes, Statistics, and Helpful Information for Monday's 129th Boston Marathon presented by Bank of America
baa.org· Published Apr 20, 2025· 6% of score
The B.A.A.'s race-eve advisory gives the Monday schedule of starts (9:06 a.m. ET wheelchair men through the waves), the pin's start time.^[1]

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Sports09/24/2026@SportDesk
130th Boston Marathon: Korir Breaks the Course Record in 2:01:52
Boston Athletic AssociationBoston Marathon Finish Line, 665, Boylston Street, Back Bay, Boston, Suffolk County, Massachusetts, 02116, United States
Starts 04/20/2026 1:06PMCONFIRMED 85% CONFIDENCE157 days agoStated as firm, per the B.A.A.'s race report: "The 130th Boston Marathon took place on Monday, April 20, 2026", with the first start from the B.A.A.'s daily advisory: "9:06 A.M. ET – Wheelchair Division – Men" (13:06 UTC, EDT).^[1]
John Korir of Kenya defended his title in 2:01:52, more than a minute under Geoffrey Mutai's 2011 course record, with the next two men also under the old mark. Sharon Lokedi repeated in 2:18:51 and Marcel Hug won the wheelchair race for a ninth time.
0.80
Sports09/24/2026@SportDesk
The 131st Boston Marathon Runs on Patriots' Day 2027
Boston Marathon Finish Line, 665, Boylston Street, Back Bay, Boston, Suffolk County, Massachusetts, 02116, United StatesBoston Athletic Association
Starts 04/19/2027SCHEDULED 85% CONFIDENCEin 207 daysGiven as scheduled on the B.A.A.'s Boston Marathon page: "Boston Marathon Apr 19th, 2027 ... 131st BOSTON MARATHON PRESENTED BY BANK OF AMERICA ... 30,000 participants will race on Patriots' Day"; no start times have been published yet.^[1]
About 30,000 runners are due to race from Hopkinton to Boylston Street on Monday 19 April 2027, after a record 33,656 qualifiers applied for places. It is the first Boston Marathon with a random draw for about 1,000 qualifiers who miss the cut-off time.
0.63
Sports09/24/2026@SportDesk
Head of the Charles Regatta 2026 Races on the Charles River
Eliot Bridge, Coolidge Hill, West Cambridge, Cambridge, Middlesex County, Massachusetts, 02163, United StatesHead of the Charles Regatta
10/16/2026 - 10/18/2026SCHEDULED 79% CONFIDENCEin 22 daysGiven as scheduled in the regatta's own site banner: "HEAD OF THE CHARLES REGATTA - OCT. 16-18, 2026", with a countdown to the 2026 regatta on the history page.^[1]
The world's largest three-day rowing event returns to the Charles River between Boston and Cambridge on 16-18 October 2026, with nearly 12,000 athletes and more than 370,000 spectators expected. Crews race a head course of about three miles against the clock, starting roughly fifteen seconds apart.
0.58
Weather09/24/2026@ClimateDesk
Boston Hits 102 Degrees, Its Hottest June Day on Record
National Weather ServiceLogan International Airport, 1, Harborside Drive, East Boston, Boston, Suffolk County, Massachusetts, 02128, United States
Starts 06/24/2025CONFIRMED 86% CONFIDENCE1.3 years agoStated as fact, per WBUR^[1] (24 Jun 2025): "Hottest June day ever: Boston reached 102 degrees Tuesday" - Tuesday being 24 June 2025.
Logan Airport reached 102 degrees on 24 June 2025, beating Boston's 100-degree June record from 2021, 1952 and 1925, with a heat index near 110. It fell just 2 degrees short of the city's all-time high of 104, set on 4 July 1911.
0.55
Transport09/15/2026@BuildDesk
The Brooklyn Bridge Opens
Brooklyn Bridge, New York, NY, USA
Starts 05/24/1883CONFIRMED 82% CONFIDENCE143.3 years agoHappened as dated, per the source^[1]: "Brooklyn Bridge opens | May 24, 1883".
New York's Brooklyn Bridge opened to the public, completing a 13-year construction effort that Emily Warren Roebling steered to completion after her husband was incapacitated by decompression sickness.
0.53
Gaming09/15/2026@BuildDesk
Olympia Looping Debuts as the World's Largest Transportable Roller Coaster at Oktoberfest
Theresienwiese, 80336 München, GermanyR. Barth und Sohn Schaustellerbetriebe
Starts 09/17/1989CONFIRMED 84% CONFIDENCE37.0 years agoCoasterpedia^[3] and Wikipedia^[4] both date the Olympia Looping's Oktoberfest^[2] debut to 17 September 1989.
The 34-meter, five-loop Olympia Looping premiered at Munich's Oktoberfest on 17 September 1989, becoming the largest portable roller coaster ever built and the only one with five inversions.
0.53
Sports09/24/2026@SportDesk
Bay to Breakers 2027 Runs From the Bay to Ocean Beach
Howard Street, South of Market, Financial District, San Francisco, California, 94105, United States
Starts 05/16/2027SCHEDULED 78% CONFIDENCEin 234 daysScheduled, per the race's 12K page: "Run the iconic Bay to Breakers^[1][2] 12K in San Francisco on May 16, 2027!".
San Francisco's costumed 12K, run since 1912, crosses the city from Howard and Fremont streets to the Great Highway on Sunday, May 16, 2027.
0.52
Transport09/15/2026@BuildDesk
Hong Kong-Zhuhai-Macau Bridge Opens as the World's Longest Sea Crossing
港珠澳大橋香港口岸 Hong Kong-Zhuhai-Macao Bridge Hong Kong Port, 離島區 Islands District, 新界 New Territories, 香港, 中国
Starts 10/24/2018CONFIRMED 85% CONFIDENCE7.9 years agoHappened as dated, per the source^[1]: "On 24 October 2018 the HZMB was opened to the public after its inauguration a day earlier."
The 55km Hong Kong-Zhuhai-Macau Bridge opened to traffic on 24 October 2018, linking the three Pearl River Delta cities with cable-stayed bridges, artificial islands and an undersea tunnel.
0.52
Mining09/15/2026@BuildDesk
Polymetal Installs Its Record 1,100-Tonne Gold Autoclave at Amursk
Amursk, Khabarovsk Krai, RussiaPolymetal International
Starts 08/17/2020CONFIRMED 87% CONFIDENCE6.1 years agoInternational Mining reported on 17 August 2020 that Polymetal's 1,100-tonne autoclave vessel had been installed on schedule at the Amursk POX-2 site.^[1]
Belgian engineering firm Coek Engineering built the world's largest gold-processing autoclave, a 1,100-tonne titanium-lined pressure vessel, and shipped it 25,000 km from Antwerp to Polymetal's Amursk POX-2 plant in Russia's Far East. The vessel was installed on schedule in August 2020.
0.52
Music09/24/2026@MusicDesk
Boston Calling Returns After Its 2026 Gap Year
C3 PresentsHarvard Athletic Complex, South Campus Drive, Barry's Corner, Allston, Boston, Suffolk County, Massachusetts, 02163, United States
06/04/2027 - 06/06/2027SCHEDULED 76% CONFIDENCEin 253 daysGiven as scheduled on the festival's own site: "Boston Calling^[1] Music Festival | Boston, MA | June 4 - 6, 2027 ... SEE YOU IN 2027", matching the organisers' post quoted by Boston.com^[3]: "an exciting return on a new weekend: June 4-6, 2027."
New England's largest music festival comes back to the Harvard Athletic Complex on 4-6 June 2027, a new weekend after years on Memorial Day, having skipped 2026. Mayor Michelle Wu linked the gap year to the strain of Boston's 250th and World Cup events.
0.52
Architecture09/15/2026@BuildDesk
One Za'abeel Opens With the World's Longest Cantilever
One Za'abeel, Dubai, UAEIthra Dubai
Starts 02/10/2024CONFIRMED 80% CONFIDENCE2.6 years agoHappened as dated, per the source^[1]: "The development was completed in December 2023 and officially opened on 10 February 2024."
Dubai's One Za'abeel opened to the public, its twin towers joined by The Link, a 230-metre skybridge that went on to set the Guinness World Record for longest cantilevered building.
AED 3.7B
0.52
Transport09/15/2026@BuildDesk
Great Indian Peninsula Railway Runs India's First Passenger Train
Bori Bunder (now Chhatrapati Shivaji Maharaj Terminus), Mumbai, IndiaGreat Indian Peninsula Railway
Starts 04/16/1853CONFIRMED 86% CONFIDENCE173.4 years agoConfirmed by IRFCA's^[3] Indian Railways history FAQ and multiple independent sources, which date India's first passenger train from Bori Bunder to Thane to April 16, 1853.
On April 16, 1853, the Great Indian Peninsula Railway ran the first passenger train in India and Asia, carrying about 400 guests roughly 34km from Bombay's Bori Bunder to Thane.
0.52

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