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IRONMAN 70.3 Switzerland in Rapperswil-Jona ist ein Zwei-Runden-Rennen im Wortsinn: Der Radsplit dreht zweimal dieselbe hügelige Schleife am Obersee, und auch der Halbmarathon führt zweimal durch die Altstadt samt der berüchtigten Schlosstreppe. Wer hier stark ist, kennt seine Schlüsselanstiege und fährt beide Runden gleich.","IRONMAN 70.3 Switzerland in Rapperswil-Jona is a two-lap race in the literal sense: the bike split turns the same hilly loop along the Obersee twice, and the half marathon too passes through the old town, including the notorious castle steps, twice. Athletes who are strong here know their key climbs and ride both laps the same.",{"de":201,"en":202},"Die 90 Radkilometer bestehen aus zwei Runden einer rund 45 Kilometer langen Schleife durch das grüne, hügelige Hinterland des Obersees. Von den gut 1.100 Höhenmetern der Gesamtstrecke liegt der Löwenanteil auf dem Rad, verteilt auf wenige, dafür deutliche Anstiege statt auf ständiges Wellen: knapp die Hälfte der Strecke ist flach.\n\nDie prägende Stelle ist ein 3,25 Kilometer langer Anstieg mit knapp 6 Prozent und 182 Höhenmetern, der bei Kilometer 15 und erneut bei Kilometer 57 gefahren wird. Davor liegt jeweils ein kürzerer, steilerer Stich mit über 7 Prozent bei Kilometer 10 und 52. Weil beide Runden identisch sind, kennst du in der zweiten genau, was kommt, fährst die Schlüsselanstiege aber mit über 45 Kilometern mehr in den Beinen.\n\nDer anschließende Halbmarathon besteht aus zwei 10,5-Kilometer-Runden durch die Altstadt von Rapperswil und ist deutlich flacher, hat aber mit der als Stairway to Heaven bekannten Schlosstreppe eine markante kurze Steigung pro Runde. Als Schweizer Traditionsrennen der 70.3-Serie zieht Rapperswil ein starkes internationales Feld an; die Strecke belohnt saubere Aerodynamik auf den flachen Passagen und Disziplin an den wiederholten Anstiegen.","The 90 bike kilometres consist of two laps of a roughly 45-kilometre loop through the green, hilly hinterland of the Obersee. Of the full course's 1,100-plus metres of climbing, the lion's share sits on the bike, spread over a few pronounced climbs rather than constant undulation: just under half the distance is flat.\n\nThe defining feature is a 3.25-kilometre climb at close to 6 percent worth 182 metres, ridden at kilometre 15 and again at kilometre 57. Each is preceded by a shorter, steeper kicker above 7 percent at kilometres 10 and 52. Because both laps are identical, on the second you know exactly what is coming, yet you ride the key climbs with more than 45 kilometres extra in your legs.\n\nThe half marathon that follows is two 10.5-kilometre laps through Rapperswil's old town and is markedly flatter, but it carries one distinctive short rise per lap in the castle steps known as the Stairway to Heaven. As a Swiss classic of the 70.3 series, Rapperswil draws a strong international field; the course rewards clean aerodynamics on the flat sections and discipline on the repeated climbs.",{"de":204,"en":205},"Der Schlüssel liegt in der Symmetrie der Strecke: Fahre beide Radrunden mit derselben normierten Leistung. Weil fast die Hälfte flach ist, bringt eine konsequente Aeroposition auf diesen Abschnitten mehr Zeit als jede Attacke am Berg. Die beiden großen Anstiege bei Kilometer 15 und 57 kletterst du gleichmäßig unter der Schwelle statt aus dem Sattel zu pressen.\n\nRennentscheidend ist die zweite Radrunde, konkret der lange Anstieg bei Kilometer 57 mit den bereits gefahrenen Höhenmetern in den Beinen. Wer die erste Runde über die Berge überzieht, verliert hier Tempo und startet mit leeren Beinen in den Lauf. Die größte Falle ist genau dieser Übermut auf Runde eins, wenn die Beine noch frisch sind.\n\nAuf dem Halbmarathon dosierst du die kurze Schlosstreppe pro Runde bewusst und hältst sonst ein gleichmäßiges Tempo. Steigere lieber kontrolliert auf der zweiten Laufrunde, als die erste zu forcieren.","The key lies in the course's symmetry: ride both bike laps at the same normalized power. Because nearly half is flat, a committed aero position on those sections gains more time than any attack on a climb. Take the two big ascents at kilometres 15 and 57 evenly below threshold rather than stamping out of the saddle.\n\nThe race-deciding part is the second bike lap, specifically the long climb at kilometre 57 with all the earlier elevation already in your legs. Overcook the first lap over the hills and you lose pace here and start the run on empty. The biggest trap is exactly that bravado on lap one, while the legs still feel fresh.\n\nOn the half marathon, meter the short castle steps each lap deliberately and hold an even pace otherwise. Better to build under control on the second run lap than to force the first.",{"de":207,"en":208},"Für die Mitteldistanz in Rapperswil solltest du je nach Leistungsniveau rund viereinhalb bis sechs Stunden einplanen, davon etwa zweieinhalb bis dreieinhalb Stunden auf dem Rad. Der Belastungscharakter ist überwiegend aerob mit klaren, längeren Kletterphasen: Anders als auf einem ständig welligen Kurs sammelst du die Höhenmeter hier in wenigen, mehrere Minuten langen Anstiegen.\n\nRennentscheidend ist die Fähigkeit, denselben langen Anstieg zweimal gleichmäßig zu fahren, das zweite Mal deutlich ermüdet. Genau dort trennt sich das Feld, und genau darauf sollte das Training zielen.\n\nSetze deshalb auf längere Schwellen- und Tempointervalle von fünf bis fünfzehn Minuten an echten Anstiegen, gefahren im Renntempo und in kontrollierter Aeroposition. Lange Ausfahrten sollten die zweifache Schleife nachbilden: identische Abschnitte wiederholt fahren und die Leistung über den zweiten Durchgang stabil halten. Weil fast die Hälfte der Radstrecke flach ist, gehört auch Zeitfahrarbeit in aerodynamischer Position dazu.\n\nFür den Lauf sind Koppelläufe nach hügeligen Radeinheiten zentral, ergänzt um kurze, wiederholte Steigungssprints, die die Schlosstreppe pro Runde abbilden. Da das Rennen Anfang Juni stattfindet, gehören moderate Wärmeanpassung und eine erprobte Verpflegungsstrategie in die letzten Wochen der Vorbereitung.","For the Rapperswil middle distance, plan on roughly four and a half to six hours depending on your level, of which about two and a half to three and a half hours are on the bike. The effort is largely aerobic with clear, longer climbing phases: unlike a constantly rolling course, here you gather the elevation in a few multi-minute climbs.\n\nWhat decides the race is the ability to ride the same long climb twice at an even effort, the second time distinctly fatigued. That is where the field splits, and that is what training should target.\n\nSo build longer threshold and tempo intervals of five to fifteen minutes on real climbs, ridden at race intensity in a controlled aero position. Long rides should mirror the double loop: repeat identical sections and keep power stable across the second pass. Because nearly half the bike course is flat, time-trial work in an aerodynamic position belongs in the plan too.\n\nFor the run, brick sessions off hilly bike rides are central, complemented by short, repeated hill sprints that mimic the castle steps each lap. As the race is held in early June, moderate heat adaptation and a rehearsed fuelling strategy belong in the final weeks of preparation.",[210],{"eventName":6,"eventDate":9,"eventHomepageUrl":11},[212,220,228,237,245,253],{"slug":213,"eventName":214,"proseName":215,"city":216,"country":8,"eventType":13,"eventDate":217,"distanceInMeters":218,"elevationGainInMeters":219,"classification":24},"uster-triathlon","Uster Triathlon",{"de":214,"en":214},"Uster","2026-08-23T00:00:00.000Z",112900,1144,{"slug":221,"eventName":222,"proseName":223,"city":224,"country":8,"eventType":13,"eventDate":225,"distanceInMeters":226,"elevationGainInMeters":227,"classification":24},"3-seen-triathlon","3-Seen-Triathlon",{"de":222,"en":222},"Hüttwilen","2027-07-18T00:00:00.000Z",55500,501,{"slug":229,"eventName":230,"proseName":231,"city":233,"country":8,"eventType":13,"eventDate":234,"distanceInMeters":235,"elevationGainInMeters":236,"classification":24},"wyfelder-xathlon","Tempo-Sport Wyfelder Xathlon 2026",{"de":232,"en":232},"Tempo-Sport Wyfelder Xathlon","Weinfelden","2026-09-13T00:00:00.000Z",47100,379,{"slug":238,"eventName":239,"proseName":240,"city":242,"country":8,"eventType":13,"eventDate":243,"distanceInMeters":244,"elevationGainInMeters":171,"classification":24},"taegi-tri","33. Tägi Tri & Duathlon 2026",{"de":241,"en":241},"Tägi Tri & Duathlon","Wettingen","2026-08-16T00:00:00.000Z",44800,{"slug":246,"eventName":247,"proseName":248,"city":249,"country":8,"eventType":13,"eventDate":250,"distanceInMeters":251,"elevationGainInMeters":252,"classification":24},"ironman-switzerland-thun","IRONMAN Switzerland Thun",{"de":247,"en":247},"Thun","2026-07-05T00:00:00.000Z",226200,2104,{"slug":254,"eventName":255,"proseName":256,"city":257,"country":8,"eventType":13,"eventDate":258,"distanceInMeters":259,"elevationGainInMeters":260,"classification":261},"zurich-city-triathlon","Zurich City Triathlon",{"de":255,"en":255},"Zurich","2027-06-27T00:00:00.000Z",51500,297,"FLAT",1787239514695]