Dennison added a centimetre to the seven-year-old pole vault record of Janine Whitlock with 4.45m.
The remaining decathlon events are the 110-meter hurdles, discus, javelin, pole vault and the 1, 500-meter run.
Her husband, who was born in the United States, is a former Italian pole vault record holder.
When he set a personal best in the pole vault, he started giving high-fives to fans in the stands.
We were diving off bleachers to deliver elbows onto a pole vault mat.
Simeon Williamson had to settle for eighth in the 100m, while Kate Dennison finished sixth in the pole vault.
Israel's Alex Averbukh won the pole vault title with a clearance of 5.85m.
World indoor pole vault champion Svetlana Feofanova is another big name who will also be at Gateshead for the meeting.
In other action, Olympic pole vault champion Yelena Isinbayeva suffered a shock defeat which ending a six-year winning streak at Crystal Palace.
They are James McIlroy (800m), Zoe Brown (pole vault), Eva Massey (shot), Ben Houghton (javelin), Michael Allen (javelin) and Brendan McConville (Decathlon).
Lewis was in good form throughout the weekend and narrowly missed out on a medal in the pole vault after clearing 5.71m.
"In 2005, it was guaranteed to us the track would stay - this is a matter of dignity, " added the pole vault great.
To capture the drama of the pole vault and long jump, she placed her cameras in holes beside the sandpit where the athletes landed.
Greg Rutherford qualified for the men's long jump final with a personal best leap of 7.99m, while Steve Lewis comfortably cleared 5.70m to make the pole vault final.
Other big names in Saturday's meet include Olympic gold medalists Brittney Reese (long jump) and Jenn Suhr (pole vault) and silver medalist Jason Richardson in the 60-meter hurdles.
The young inventor already has a degree from Yale Medical School, an Olympic gold medal in the pole vault, and his own company, Mysto Manufacturing, which makes magic tricks.
Isinbayeva, who failed to defend her world title in Berlin last month, won the pole vault with a first-time clearance of 4.70m to maintain her perfect Golden League record.
The young inventor already has a sheepskin from Yale Medical School, an Olympic gold medal in the pole vault, and his own company, Mysto Manufacturing , which makes magic tricks.
The women's hammer throw gold, meanwhile, went to Russia's Tatyana Lysenko, while France's Renaud Lavillenie narrowly bested a pair of competitors from Germany to win gold in the men's pole vault.
Earlier Steve Lewis had finished a respectable sixth in the pole vault which was won by Australia's Steve Hooker in 5.90 metres with France's Romain Mesnil taking silver and Renaud Lavillenie bronze.
There is further potential for confusion because the IAAF ruling applies only from 2000, meaning that the highest ever pole vault of 6.15m by Sergey Bubka indoors in 1993 counts just as a world indoor record.
"The United Kingdom has an unbelievable story of athletics (feats) and I can't believe we are talking about such a thing, " added the world pole vault record holder, who was speaking at an IAAF council meeting.
For Eaton, or any decathlete competing for a medal, the trick is getting through the pole vault, a dastardly maneuver that can spell doom if he can't manage to at least clear the bar at an opening height.
On a dramatic day for Britain's athletes, new national indoor record-holder Kate Dennison jumped an impressive 4.35m in the pole vault final but needed to break another GB record to progress and had to settle for sixth position.
Among the international stars on show on Sunday are Ethiopian Kenenisa Bekele, who goes in the 3, 000m and 5, 000m, and Russia's dethroned world champion Yelena Isinbayeva, who goes head-to-head with her Polish successor Anna Rogowska in the women's pole vault.
Other popular video clips viewed online included German diver Stephan Feck's 'zero point' dive, Cuban pole vaulter Lazaro Borges' pole snapping mid-vault and Usain Bolt's performance in the men's 100m final.
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