Triathlon’s top professional talent will convene in Kailua-Kona, Hawai'i on October 14 for the 41st edition of the Ironman World Championship, the most iconic one-day endurance event in the world.

Leading one of the most competitive and talented professional fields in race history, Jan Frodeno (DEU) and Daniela Ryf (CHE) will both be looking to win their third-straight Ironman World Championship title.

“As we approach four decades of racing at the Ironman World Championship in Hawai'i, the level of global competition is as strong as it has ever been,” said Andrew Messick, Chief Executive Officer for Ironman. “With a field of such fine professional athletes competing again this year, I am certain we will see another spectacular race.”

The women's professional field will have their sights set on two-time Ironman World Champion and now three-time Ironman 70.3 World Champion Daniela Ryf (CHE). Also vying for the title is last year’s third-place finisher Heather Jackson (USA), who will be looking to repeat as the top American finisher for a third straight year. Sarah Crowley (AUS), who broke through with a win at the 2017 Ironman Asia-Pacific Championship in Cairns in June, and again just a month later with a victory at the Ironman European Championship in Frankfurt, will also be looking to challenge for a podium spot. Kaisa Sali (FIN), who finished fifth in her Ironman World Championship debut last year, intends to use her blistering run speed to move up a few notches in her second go on the Island of Hawai'i.

Among other seasoned competitors headlining the female group are Michelle Vesterby (DNK), one of the most consistent performers at the Ironman World Championship and winner of the 2017 KMD Ironman Copenhagen; Susie Cheetham (GBR), who is coming off a strong win at the 2017 Ironman South American Championship, and exciting newcomer Lucy Charles (GBR), fresh off a dominating win at the 2017 Ironman Lanzarote and a runner-up finish at the Ironman European Championship in Frankfurt.

Below is the pro women’s start list for the 2017 Ironman World Championship:

101   Daniela Ryf   CHE (Switzerland)
102 Sarah Crowley AUS (Australia)
103 Kaisa Sali FIN (Finland)
104 Sarah Piampiano USA (United States of America)
105 Heather Jackson USA (United States of America)
106 Michelle Vesterby DNK (Denmark)
107 Susie Cheetham GBR (United Kingdom)
108 Anja Beranek DEU (Germany)
109 Michaela Herlbauer AUT (Austria)
110 Linsey Corbin USA (United States of America)
111 Leanda Cave GBR (United Kingdom)
112 Elizabeth Lyles USA (United States of America)
113 Rachel Joyce GBR (United Kingdom)
114 Annabel Luxford AUS (Australia)
115 Laura Siddall GBR (United Kingdom)
116 Jodie Robertson USA (United States of America)
117 Carrie Lester AUS (Australia)
118 Lucy Charles GBR (United Kingdom)
119 Astrid Stienen DEU (Germany)
120 Alexandra Tondeur BEL (Belgium)
121 Camilla Pedersen DNK (Denmark)
122 Asa Lundstrom SWE (Sweden)
123 Corinne Abraham GBR (United Kingdom)
124 Maja Stage Nielsen DNK (Denmark)
125 Kristin Moeller DEU (Germany)
126 Sonja Tajsich DEU (Germany)
127 Dimity-lee Duke AUS (Australia)
128 Mareen Hufe DEU (Germany)
129 Gurutze Frades ESP (Spain)
130 Lauren Brandon USA (United States of America)
131 Alicia Kaye USA (United States of America)
132 Diana Riesler DEU (Germany)
133 Melissa Hauschildt AUS (Australia)
134 Celine Schaerer CHE (Switzerland)
135 Katharina Grohmann DEU (Germany)
136 Jocelyn McCauley USA (United States of America)
138 Haley Chura USA (United States of America)
139 Nikki Bartlett GBR (United Kingdom)
140 Jeanne Collonge FRA (France)

The men’s group is equally crowded with titleholders and contenders, including two-time reigning Ironman World Champion and one of the most dominant triathletes of all time, Jan Frodeno (DEU). The 2008 Olympic gold medalist will seek a third title at Kona to further cement his legacy. Frodeno’s fellow German rival, 2014 Ironman World Champion Sebastian Kienle (DEU), finished second last year with the eighth-fastest time in the history of this race (8:10:02) and will be attempting to reclaim a spot atop the podium. Both will also be keenly aware of the third German in the bunch, Patrick Lange, who burst onto the scene in not-so-subtle fashion by posting a 2:39:45 time in the marathon portion, breaking a 27-year-old Ironman World Championship run-course record to earn third place in his Kona debut.

Outside of the Germans who look to keep hold of the podium, fans around the world are sure to keep their eyes on veteran triathlete Tim Don (GBR) who shattered the Ironman-branded world record with a flawless race at the 2017 Ironman South American Championship in Brazil, finishing in 7:40:23 in May. Adding pressure onto the field will be Lionel Sanders (CAN) who has been dominant in Ironman 70.3 competition, amassing 16 wins over the past four seasons, including an almost flawless record in 2017 with victories at Ironman 70.3 events in Pucon, Buenos Aires, Oceanside and Mont-Tremblant. Rising-star Josh Amberger (AUS) will make his debut in Kona after capturing the 2017 Ironman Asia-Pacific Championship in Cairns in May. Two-time Ironman African Champion and 2014 Ironman World Championship runner-up Ben Hoffman (USA) will look to improve upon his fourth-place finish from a year ago. Fellow Americans Tim O’Donnell and Andy Potts, who respectively earned third and fourth place finishes in the 2015 Ironman World Championship, will join Hoffman in competing to become the first Ironman World Champion from America since 2002 (Tim DeBoom).

Below is the pro men’s start list for the 2017 Ironman World Championship:

1   Jan Frodeno   DEU (Germany)
2 Sebastian Kienle DEU (Germany)
3 Benjamin Hoffman USA (United States of America)
5 Patrick Lange DEU (Germany)
6 Timothy O’Donnell USA (United States of America)
7 Frederik Van Lierde BEL (Belgium)
8 Kyle Buckingham ZAF (South Africa)
9 Tim Don GBR (United Kingdom)
10 Boris Stein DEU (Germany)
11 Pete Jacobs AUS (Australia)
12 Matthew Hanson USA (United States of America)
14 Andy Potts USA (United States of America)
15 Terenzo Bozzone NZL (New Zealand)
16 David McNamee GBR (United Kingdom)
17 Matthew Russell USA (United States of America)
18 Bart Aernouts BEL (Belgium)
19 James Cunnama ZAF (South Africa)
20 Nicholas Kastelein AUS (Australia)
21 Josh Amberger AUS (Australia)
22 Braden Currie NZL (New Zealand)
23 Ronnie Schildknecht CHE (Switzerland)
24 Tim Reed AUS (Australia)
25 Nils Frommhold DEU (Germany)
26 Patrik Nilsson SWE (Sweden)
27 Joe Gambles USA (United States of America)
28 Tyler Butterfield BMU (Bermuda)
29 Ruedi Wild CHE (Switzerland)
30 Lionel Sanders CAN (Canada)
31 Brent McMahon CAN (Canada)
32 Ivan Tutukin RUS (Russian Federation)
33 David Dellow AUS (Australia)
34 Cyril Viennot FRA (France)
35 Michael Weiss AUT (Austria)
36 Marko Albert EST (Estonia)
37 Alessandro Degasperi ITA (Italy)
38 Tim Van Berkel AUS (Australia)
39 Igor Amorelli BRA (Brazil)
40 Thiago Vinhal BRA (Brazil)
41 David Plese SVN (Slovenia)
42 Marc Duelsen DEU (Germany)
43 Harry Wiltshire GBR (United Kingdom)
44 Jan van Berkel CHE (Switzerland)
45 Ivan Rana ESP (Spain)
46 Kirill Kotsegarov EST (Estonia)
47 Reinaldo Colucci BRA (Brazil)
48 Patrick Evoe USA (United States of America)
49 Cameron Wurf AUS (Australia)
50 Daniel Fontana ITA (Italy)
51 Jesse Thomas USA (United States of America)
52 Markus Fachbach DEU (Germany)
53 Giulio Molinari ITA (Italy)
54 Denis Chevrot FRA (France)
55 Michael Fox AUS (Australia)
56 Kaito Tohara JPN (Japan)
58 Chris McDonald AUS (Australia)
59 Eneko Llanos ESP (Spain)

The 2017 Ironman World Championship will offer a $650,000 total professional prize purse which will be distributed to male and female first through tenth place finishers.

In addition to the competitive professional field, more than 2,400 registered age-group are registered to compete in this year’s Ironman World Championship. The largest international athlete field in this race’s history represents 66 countries, regions and territories on six continents. Athletes ranging in age from 18 to 84 have earned their championship opportunity by having finished among the best at one of more than 40 qualifying Ironman events worldwide.

Live race coverage of the 2017 Ironman World Championship can be viewed on Comprehensive coverage will capture every aspect of the race and feature a hosted show, athlete tracker and live blog. For live tracking, real-time results and instant notifications, fans can follow both the professional and age-group athletes on the Ironman Tracker app available for download from the Google Play and the iTunes App Store. In addition, NBC will air the Ironman World Championship special on Saturday, December 9 at 2:30 p.m. ET (check local listings for details).