|Representing United Kingdom|
|1993 West Point||Classic|
Already at the early age of 15, she won the Elite class of the Jan Kjellstrom Trophy in 1983. The same year she was member of the British relay team at the World Orienteering Championships, making her possibly the youngest WOC participant ever.
During the following years' WOC, she always had promising qualification results in the top 10, but could not match them in the finals. It was not until 1993, when she won Britain's first world championship medal coming third over the classic distance. In 1995, she stepped up by claiming both silver medals in the short and classic distances (again not matching her 1st place of the qualification). After another 1st in the qualification of 1997, finally in 1999 she took the crown by becoming World Orienteering Champion in the short distance event. In 2001, after a winning her fourth consecutive qualification (1995/97/99/01), she retired from the WOC with an 11th place in the long distance event. Between 1983 and 2001, she took part in all 11 WOC.
Baker also represented England at mountain running and was a successful fell runner, winning races including the Edale Skyline, Duddon Valley, the Three Shires, the Langdale Horseshoe and the Carnethy 5.
- "Profile: Yvette (Hague) Baker". Retrieved 2008-06-15.
- Sarah Rowell, Off-Road Running (Ramsbury, 2002), 123-25.
- Graham Breeze, "Equi ad Circos (Classic Fell Races Part 3)", The Fellrunner Magazine, Feb 2003, 24-26; Carnethy Hill Runners: Carnethy 5 Results Summary.