The 20-year-old competed on Thursday in the 200 meter backstroke finals and while most predictions saw him finishing in eighth and last place he exceeded expectations, claiming seventh place with a time of 1:57.62 seconds.
Toumarkin's time was not as fast as his semi-final finishing time (1:57:33 – an Israeli record) but thanks to an amazing finish over the last 50 meters of the race he moved forward from last to seventh place.
Toumarkin is the first Israeli swimmer to make the finals since Eitan Orbach finished in eighth place in the 2000 Olympic Games in Sydney.
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Earlier Thursday, Israeli tennis duo Andy Ram and Yoni Erlich's Olympic dream came to an end after losing in the quarter finals to American siblings Bob and Mike Bryan, who are ranked No 1. in tennis doubles. The final score was 7:6, 7:6.
The devastating loss came just one day after Ram and Erlich defeated former Olympic Swiss gold medalists Roger Federer and Stanislas Wawrinka.
Toumarkin after successful final (Photo: Oren Aharoni)
Speaking after the match Ram said: "After our victory against Federer, we have this loss, but it doesn't take anything away (from that victory).
"We reached the quarter finals, a stage where you already think of going all the way; we played against the best duo in the world, when you don't take chances you lose."
Ram and Erlich in London (Photo: Oren Aharoni)
Ram added: "It may have been the most painful defeat in our career, but they won't take our victory over Federer away from us. You see, there aren't many people who defeated the best player in the world.
"We are tennis players who need to look ahead. We received lots of messages of support, Ehud Olmert was cheering us on during the whole match."