Betschart was born in
Steinhausen, Switzerland. She began her career in indoor volleyball at VBC Steinhausen with her friend
Nicole Eiholzer. Later, Betschart and Eiholzer formed a beach volleyball duo under the supervision of the coach Kurt Brunner, the first and only coach of the pair. From 2008 to 2013 they won the Swiss Junior Championships in every category they competed: U15 (2008, 2009), U18 (2010) and U21 (2011, 2012, 2013).
2011 season: Youngest U21 World Champion In 2011, along with Eiholzer, Betschart became fifth in the
U19 World Championships in
Umag. They reached the final at the U18 European Championships in
Vilnius but lost to home favorite top-seeded
Dumbauskaitė /
Povilaityte in three sets (17–21, 22–20, 13–15) and settled for silver medal. For the
U21 World Championships in
Halifax, Betschart teamed up with
Joana Heidrich after replacing Heidrich's original teammate
Anouk Vergé-Dépré who was unable to play in the World Championships for health reasons, and they became the U21 World Champions after defeating Canada's top-seeded
Altomare /
Humana-Paredes in three sets. They were the first Swiss pair to claim the World Junior Championship title and at 15 years and 10 months, Betschart became the youngest player to win a gold medal in the history of
FIVB U21 World Championships. After their international success, Betschart and
Heidrich appeared on the cover of September 2011 issue of
Swiss Volley magazine.
2012 season: Back-to-back U21 World Championship gold The following year Betschart / Eiholzer were third at the U18 European Championships in
Brno. At the U19 World Championships in
Larnaca and the U20 European Championships in
Hartberg, they finished in fifth place. It was also a milestone in the career of Nina Betschart, she became the second woman after Brazil's
Carolina Salgado to win gold in back-to-back years with different partners. Alongside
Heidrich, Betschart made her
FIVB Beach Volleyball World Tour debut at the last stage of the
2012 World Tour in Bangsaen,
Thailand after receiving a wild card by the
FIVB. They finished the tournament in respectable ninth place.
2013 season: U20 and U22 European double In 2013 Betschart / Eiholzer won three Coop Beachtoor (Swiss National Beach Volleyball Tour) tournaments in
Locarno,
Geneva and
Rorschach, respectively and finished fifth in the Swiss National Championships in
Bern. The duo competed in both U21 and U19 World Championships and finished both competitions in fifth place. They have been clearly the dominant force of the championship and did not lose a single set throughout the tournament. This was the first international title that Betschart had won with her long-time partner, Eiholzer. With the gold medals at U20 and U22 European Championships she became the second woman to win two European Junior Championship gold medals in the same year after
Evgenia Ukolova who achieved the double at U20 and U23 European Championships back in 2008 (also with different partners).
2014 season: Second consecutive U20 European title In 2014, Betschart / Eiholzer successfully defended their U20 European Championship title in
Cesenatico, Italy and thereby they became the first pair to win the U20 European crown for two consecutive years. They continued to compete well in Coop Beachtour, by winning the tournaments in
Basel and
Olten and reaching the final at
Locarno. They moved up one place in the Swiss National Championships and finished fourth after losing the bronze medal game against the "Swiss Tanjas",
Tanja Goricanec and
Tanja Hüberli. Her first
World Tour appearance with Eiholzer, came in 2014
Gstaad Grand Slam but the duo failed to qualify for main draw after finishing the qualification in 22nd place (only top-14 qualified). In U21 World Championships in
Larnaca, they missed the podium after losing the bronze medal match against the American pair
Sara Hughes /
Kelly Claes in three sets and finished the championships in fourth place.
2015 season: European Games Champion In 2015 season the duo began to appear in
World Tour in more regular basis, their best result was the ninth-place finish in
Prague Open. Their biggest international success came in the
European Games in
Baku. They won the gold medal after beating Austria's
Schützenhofer /
Plesiutschnig in the final in three sets (21–16, 14–21, 15–13). They were 8–11 down in the third set tie-breaker and had trailed for most of the set, but in the end they scored three points in a row – including an ace by Betschart – and crowned the first ever
European Games champions in beach volleyball. After the match Betschart admitted that the victory was unlikely to come: "It is unbelievable. Didn't expect it. We were behind them all the time." They put the disappointment behind and made their first podium at continental level after finishing in third place at
CEV Satellite tournament in
Timișoara, Romania. Then, they went on to win gold medal at the U22 European Championships in
Macedo de Cavaleiros, Portugal. They continued to their success at Coop Beachtour, with claiming two tournament wins in
Geneva At the end of the season Betschart and Eiholzer decided to end their eight-year long partnership.
2016 season: First FIVB World Tour podium Following the split with Eiholzer, Betschart has teamed up with
Tanja Hüberli, who was left partnerless upon the retirement of
Tanja Goricanec. They backed up that performance with another fifth-place finish at
Poreč Major. They reached their first
World Tour podium at A1
Major Klagenfurt where they finished in third place after defeating Argentina's
Ana Gallay /
Georgina Klug in three sets (14–21, 21–14, 22–20). At the home
European Championships in
Biel/Bienne they lost to eventual champions top-seeded
Ludwig /
Walkenhorst in the round of 16 and finished the championship in ninth place. Alongside Hüberli, Betschart won her first continental level tournament at CEV Satellite
Baden in Austria. Since their success in the World Tour, they have started to compete in Coop Beachtour less frequently. Although they finished all tour events they competed in podium places; with her new partner, Betschart could not manage a tournament victory for the first time in four seasons. At the National Championships in
Bern, she repeated last year's performance by finishing in bronze medal position.
2017 season: Second FIVB World Tour podium and World Tour Finals debut Betschart and Hüberli started the season in
Swatch Major Series event in
Fort Lauderdale in early February where they failed to qualify to the knock-out phase after losing all three group matches. In their very next tournament, a Coop Beach Tour event in
Zürich, they reached first podium of the season with a third-place finish. They returned to the World Tour at a 4-Star tournament in
Rio de Janeiro with a ninth-place finish after losing to the eventual champions
Ágatha /
Duda of Brazil in the round of 16 (16–21, 21–18, 12–15). After similar ninth-place results in World Tour at 3-star tournaments in
Moscow and
The Hague, the duo made their first international level podium in CEV Masters tournament in
Baden. They edged out the Czech pair
Kolocová /
Kvapilová in very closely contested bronze medal match despite being forced to take a medical time-out when 10–12 down in the third set (21–18, 19–21, 16–14). In the 5-star Major Series tournament in
Poreč, they won all of their matches until the semi-final match against
Sluková /
Hermannová whom they lost in three sets. They wasted couple of set points in the first set before losing it and despite dominating the second, they ran out of gas in the deciding set (20–22, 21–12, 10–15) and missed the chance to qualify for their first World Tour final. In the bronze medal match, they beat
Barbara /
Fernanda of Brazil and clinched their second ever medal in World Tour. After that performance they start to struggle in World Tour. They eliminated from
Gstaad Major in second round and failed to meet the expectations of the home crowd. They skipped the lower-star World Tour events and participated only at the 4-star tournament in
Olsztyn, where they also eliminated in second round, until the World Championships. At the
World Championships in
Vienna, they topped their group after winning all three group matches and beat the Austrian pair
Schwaiger /
Schützenhofer in the round of 32 before losing to
Pavan /
Humana-Paredes of Canada in the next round. Two weeks later they entered to the
European Championships in
Jurmala as the 4th seeded team, but suffered an unexpected defeat against
Kolocová /
Kvapilová in the round of 16 despite winning the first set and having a commanding 13–8 lead in the second (21–13, 18–21, 8–15). After the disappointment at European Championships, Betschart and Hüberli competed in Swatch World Tour Finals in
Hamburg after receiving a wild card from
FIVB, as one of the highest ranked teams not qualified for the event. Although they lost both two pool matches, they beat
Kolocová /
Kvapilová in the round of 12 and reached the quarter-finals in their World Tour Finals debut. At the end of the season, they competed at the National Championships where they finished in second-place after losing to
Vergé-Dépré /
Heidrich in the final in three sets (21–10, 17–21, 17–19). ==Personal life==