LONDON – Margaux Isaksen served notice Sunday that she should be ranked as a favorite to medal in modern pentathlon competition at the 2016 Olympics.

Isaksen, 20, finished fourth in the London 2012 modern pentathlon, despite struggling earlier this year with mononucleosis. She made a spirited rally in the final event, which combined running and shooting.

After the competition, Isaksen said her finish was “bittersweet.” She had recently suffered a broken wrist, which also hampered her training. Isaksen is a resident at the Olympic Training Center.

“I wasn’t able to train for the first four months of the year and running is my best event,” she said. “I was so close to a medal. You can also say, what if? But my swimming was a few seconds slower and my running was significantly slower than what I hoped for.

“I was really hoping I could bring back a medal for the U.S. I have to settle for fourth this time.”

Isaksen competed in the 2008 Beijing Games as a 16-year-old. She finished 21st.

“There are things that I wish I had done differently, but at the same time I was 16 and I was just happy to be there,” Isaksen told Sports Illustrated in June.

Lithuania’s Laura Asadauskaite won the gold medal with an Olympic record score of 5,408. Samantha Murray of Great Britain won silver, and Brazil’s Yane Marques claimed the bronze with 5,340 points, just eight points ahead of Isaksen’s 5,332.

The modern pentathlon consists of fencing, swimming, riding and a combined event of running and shooting.

Twitter: @davidramz

Facebook: davidramsey13