The Giant Killers: Rugby’s Most Jaw-Dropping Upsets

Going into the match, everyone outside of Japan’s camp had written them off. The bookmakers certainly had, with some putting their odds to win as long as £20-to-1—a figure that truly captures the consensus feeling of an impossible task. If you'd placed a bet on that massive underdog, a sportsbook like Lottoland would have offered you a huge potential payout on an outcome almost no one saw coming. But what the odds didn’t account for was Japan’s sheer belief, their relentless pace, and the tactical genius of coach Eddie Jones. Twice the Springboks threatened to pull away, but Japan’s stubborn defence and a last-gasp try by Karne Hesketh flipped the floodlights in their favour. That final whistle in Brighton wasn’t just an upset; it was the dawn of a new era in tier-one rugby.

Picture a packed Cardiff Arms Park buzzing for a Crusade: Wales vs an untested Western Samoa side making their World Cup debut. Few outside Samoa’s camp gave them half a chance. From the first thunderous tackle to the final whistle, the Samoans bullied and dazzled, with debutant Brian Lima setting the tone for a performance Wales simply couldn’t contain. When the underdog grabbed victory, it wasn’t just history; it was destiny announced.

Few have ever come back like this. Trailing 24-10 at one stage against the All Blacks—Jonah Lomu tearing holes through defences—France could have packed their bags. Instead, Christophe Lamaison orchestrated a second-half masterclass, landing two drop-goals and two penalties in quick succession. The Gallic flair burned brighter than any haka that day, leaving New Zealand stunned on Twickenham turf.

Wales expected to waltz through their pool. Instead, Fiji’s explosive running rugby and pinpoint back-line finishing turned a promising Welsh campaign into a scramble. Akapusi Qera and Graham Dewes dotted down under the posts, while Wales floundered trying to contain the onslaught. When the scoreboard hit 38-34, Wales found themselves heading home early—victimized by flair, pace and an unrelenting island spirit.

Fiji had triumphed over Uruguay 68-7 just ten months earlier. This time out, the Pacific Islanders scored four tries yet somehow relinquished control. Uruguay’s unshakable belief and Felipe Berchesi’s boot kept them within reach. In the dying minutes, they held on to secure their biggest test win ever—a statement that the game’s gap between the haves and have-nots is steadily shrinking.

Five occasions, five lessons: never count out the underdog, never assume the script is written, and always—always—respect the heart that beats within the so-called minnows. Which upset still gives you chills? Was it the Pacific roar in 1991 or Japan’s seismic breakthrough in 2015? Share your

memories below and join the debate—because in rugby, the next upset might just be around the corner.