Giselle Isabella Guillen is a professional tennis player from Australia, born 21 May 2008. The Australian competes on the WTA Tour and plays right-handed.
This page tracks Giselle Isabella Guillen's upcoming schedule, latest results, recent form and surface record, with each match linking through to a detailed head-to-head and pre-match analysis. Scores update live as matches are played.
Rankings
Ranking Projection
Trajectory from our weekly snapshots. Defending— points dropping in the next ~12 weeks (last year's results at the same events). Win … — points gained by winning the round they're currently in. Expected — most likely landing rank from our draw model (Elo over the bracket). WTA points table.
Career highs
Ranking trajectory from our weekly snapshots (last ~12 months); peak rating and longest tour-level win streak from our match records. Umpiry rank is the player’s position by our rating — the arrow shows how many spots that is above (▲) or below (▼) their official ranking.
2026 season form
1–3W–L25%
Recent surface record
Career record
2–6W–L
Career surface record
Recent results
Exhibitions & team events
Shown for completeness — not counted in form, surface, or career stats. 12 matches (exhibitions, Davis / Laver / United Cup).
More Australia players
Explore the rankings
Frequently asked questions
When was Giselle Isabella Guillen born?
Giselle Isabella Guillen was born on 21 May 2008 (18 years old).
Where is Giselle Isabella Guillen from?
Giselle Isabella Guillen is from Australia.
Is Giselle Isabella Guillen right or left-handed?
Giselle Isabella Guillen plays right-handed.