A Guinness World Record Attempt · Miami Beach, 2027
Fifty consecutive singles matches. Fifty opponents from the community. One athlete who doesn’t stop until the final point.
The standing record
40 consecutive opponents — Stef Kerfs, Belgium, December 2023. Match 41 rewrites it. Mission 50 goes ten further.
Source: Guinness World Records — “Most consecutive opponents, tennis (singles)”.
Every match completed, back to back, against a new opponent.
One match past the standing mark — everything after is new territory.
Mock schedule, estimate only. Timing will change in real time and is subject to final official regulations.
Witnessed & filmed, start to finish. Independent witnesses, timekeepers and continuous video for every match.
What it takes
01
The athlete.
Sandra has spent months training directly with her health team — building not just the physical endurance the attempt demands, but the mental conditioning to stay present match after match, hour after hour.
The training mirrors the attempt itself: extended time on court, deliberate recovery work, and a pacing strategy built specifically around fifty matches, not just one.
02
The operation.
03
The evidence.
Projected running order
From first serve to match fifty, the attempt runs continuously. This projection shows how the hours are expected to unfold — the final schedule will be confirmed ahead of the event.
Independent witnesses, timekeepers and players in position. The first match starts the official clock.
The rotation is on schedule, and rest time is being stored up for when it’s needed most. Every detail documented.
Matches move under the night lights. Temperatures drop, visibility changes, and opponents show up in the middle of the night — no delays.
The sun is up on day two. A fresh opponent every time, and Sandra still on court, pushing every limit of the body.
Match 41 starts around hour 42. When its final point is played, around hour 43, the standing record of 40 is broken. Everything after this point is new territory.
The final match starts around hour 52, with the final point around hour 53. The evidence pack — footage, logs, witness statements — is sealed and submitted to Guinness World Records for ratification.
Things to know
Spectators
Our hope is to make the attempt free to the public in a limited capacity. Details on access and capacity will be shared once they’re confirmed — sign up for updates to be the first to know.
Get updatesLivestream
The attempt will be live streamed for most of its duration. Alongside it, continuous video is captured, monitored and documented for Guinness World Records adjudication. Follow us on social and sign up for updates to get the link.
Get updatesConditions
Yes, weather is a risk. Conditions are monitored continuously and rest times are planned around it. If rain comes, courts are covered with tarps and rollers stand by to get play back fast. The one hard rule: a match in progress must finish — an interrupted match doesn’t count.
Opponents
The fifty opponents will mostly come from the local community.
Sign up to playTeam
Guinness record support, court operations, ball crew, setup and more — the attempt runs on a full team willing to show up for the long haul.
Join the teamRun of Show
Preparation is under way and details will change in real time. Sign up to stay updated.
Get behind it
Fifty matches take more than one athlete. Here’s how to help.
Ball crew, court operations, record support and more. The attempt runs on people who show up.
VolunteerSign up and we’ll send the livestream link and event details as they’re confirmed.
Sign up for updates
