A decade of disruption and reinvention—pandemic pauses, split world championships, and a renewed emphasis on parity, speed, and storytelling.

A polished short‑course era peaks with London and Rio dynasties, while long‑course sees new royalty—Carfrae, Kienle, Frodeno, Ryf—redefine benchmarks. Season‑long series, mixed relay momentum, and tech advances in aero, power, and footwear shape performance.

Olympic debuts in Sydney and Beijing propel short‑course into the mainstream as a global series model emerges. Long‑course diversifies with the Ironman 70.3 circuit and off‑road tri finds its home in Maui—broadening pathways for pros and age‑groupers alike.

Governance and global reach cement the sport: ITU World Cup expands, draft‑legal racing reshapes tactics, and the IOC approves triathlon for Sydney 2000. Kona dynasties—Allen, Newby‑Fraser, Bowden, Van Lierde—anchor long‑course prestige as Europe’s calendar deepens.

Triathlon scales fast: Valerie Silk steers Ironman to Kona, USTS and iconic city races bring TV‑ready short‑course, Europe’s Nice rises, and national federations take shape. The decade culminates with ITU’s birth, Worlds in Avignon, and the sport’s defining duel—Allen vs. Scott’s Iron War.

Grassroots club races coalesce into a new sport as Hawaiʻi’s audacious Ironman is born. The first two editions—Gordon Haller’s inaugural win and Lyn Lemaire’s barrier‑breaking finish—spark global curiosity, setting the stage for triathlon’s 1980s boom.