The 25-year-old from Tavistock in Devon sealed her victory with a strong cross-country run to win her first World Cup gold and her second World Cup medal.
 
It followed hot on the heels of Sam Weale’s bronze medal for Great Britain in the men’s final yesterday – his first World Cup medal.
 
“I’m ecstatic,” said a delighted Fell.

 

“I went into the competition hoping for a top-eight finish so to win it was great.
 
“I had a bit of a shocker in the run in the semi-final on Friday.

 

"I felt quite heavy and I only just made it into the final, which knocked my confidence a bit.

 

“I was excited just to be in the top 36, so to win it today is brilliant.”
 
Fell, who won the 2003 World Junior Championships, but then suffered a series of injuries, put together an outstanding sequence in the five disciplines, including shooting a personal best, swimming her best time of the year and completing one of only two clear rounds in the riding arena.
 
Jan Bartu, Pentathlon GB’s performance director, said: “Nobody could come close to Heather in the run today.

 

"It was a fantastic finish to the competition.
 
“She struggled a bit in the fencing, but she recovered in the second half and that was crucial for her confidence.

 

"Her swim was fantastic and she produced the best ride of the day.”
 
Fell produced a strong performance in the final discipline of the day – the 3k cross-country – to win gold.
 
She went into the run with the most points accumulated from the other four disciplines, which means she set off first on the run with a 10-second advantage over Egypt’s Aya Medany.
 
But Fell’s gold never looked in doubt – she led throughout the race, extending her lead it to cross the finishing line to win by 14 seconds.
 
Fell, who achieved the Olympic qualifying standard for Beijing 2008 by winning silver at last year’s European Championships, won her only other World Cup medal – a bronze – in Moscow in May last year.
 
Britain’s Georgina Harland produced another strong run at Millfield to finish climb from 15th after four disciplines to seventh overall.
 
Mhairi Spence finished 15th overall, with Lindsey Weedon 20th and Katy Livingston 33rd.
 
Fell had taken the initiative early on, shooting 188 from a maximum possible 200 to score 1,192 points. 

 

Her tally – a personal best - included five consecutive 10s from her first six shots to put her joint top of the leader board with Greece’s Donna Vakalis and Anna Arkhipenka of Belarus.
 
Harland, Britain’s Athens 2004 Olympic bronze medallist, scored 172 – a repeat of her strong semi-final performance – for 1000 points and joint 30th.
 
But Fell was still leading the British challenge in 14th on 1,952, netting 760 points from her 15 victories and 20 defeats in the fencing salle.
 
Lithuania’s Donata Rimsaite led the way after two disciplines on 2,072 points.
 
Fell continued her consistent series in the pool, clocking a time of 2min14.05sec  - almost three seconds faster than her semi-final time on Friday - to finish fourth in the fastest heat of the 200 metres freestyle.
 
That gave her 1,312 points, taking her total to 3,264 and pushing her up to sixth in the overall rankings with two disciplines remaining.
 
Egypt’s Aya Medany – the 2007 World Cup Final champion - led the field with 3,292 points after three disciplines.
 
The equestrian element of the Modern Pentathlon can be notoriously unpredictable with riders allocated their horses by drawing lots and only having 20 minutes with their horse before going into the show jumping arena.
 
But that did not stop Fell, who produced the perfect ride to top the leader board at the end of the fourth discipline.
 
Fell was paired with GV, a seven-year-old chestnut mare, and produced a clear round in 67 seconds – four seconds within the allotted time, to bag 1,200 points. 

 

It was one of just two clear rounds in the final.
 
That gave her a total of 4,464 points – putting her 40 points clear of Medany in second and giving her a 10-second head start over the Egyptian for the 3k run.
 
Fell’s time of 11:06.54 in the 3k run was enough to earn her 1,056 points to take her final total for the day to 5,520.