Denise Mueller-Korenek

Denise Mueller-Korenek is an American cyclist and the holder of the Guinness World Record for paced bicycle land speed. On September 16, 2018, she averaged 183.932 mph (296.009 km/h) across the Bonneville Salt Flats in Utah, a figure that remains the fastest speed ever recorded on a bicycle and roughly the takeoff speed of a large commercial jet.

She holds the outright record rather than a separate women's mark, which makes her the first and only woman to top a ledger that dates back to 1899. Before the 2018 run she had already set the women's paced record at 147.7 mph in 2016. She was 45 when she broke the overall mark, and she now works as an inspirational speaker, drawing on a record attempt that depended as much on engineering and nerve as on fitness. [edit]

Denise Mueller-Korenek was born in California around 1973 and grew up in the Encinitas area of San Diego County, where she attended San Dieguito High School Academy. Public records on her childhood are thin: her exact birth date, her parents and any siblings are not documented in the sources available, and she has not filled those gaps publicly.

Her first athletic life was as a competitive cyclist. She raced on the road and on the track in her younger years, the conventional amateur path of the era, and then stepped away from the sport entirely. The return came later in life and with a different target. Rather than going back to criteriums or track leagues, she turned to paced land speed riding, a niche that had almost no women in it and required a team, a purpose-built machine and a stretch of salt flat.

The groundwork began years before any record fell. Under the banner Project Speed, and later Inspired183, she assembled engineers and a driver and started testing at Bonneville. The first measurable result came in 2016, when she set the first women's paced bicycle land speed record at 147.7 mph (237.7 km/h). That run was the proof of concept. It showed she could hold a line inside the still-air pocket behind a pace vehicle at speeds where a small error is not survivable, and it set up the larger attempt against Fred Rompelberg's 167 mph overall mark from 1995. [edit]

The record fell on September 16, 2018. Riding a custom carbon KHS bicycle in the slipstream of a modified dragster, Mueller-Korenek averaged 183.932 mph (296.009 km/h) over the measured stretch at Bonneville, clearing Rompelberg's 1995 mark of 167 mph by nearly 17 mph. The BBC compared the speed to that of a large jet at takeoff. Coverage followed from Wired, The Washington Post, ESPN, Bicycling, Outside and The Wall Street Journal, and Guinness World Records ratified the mark.

The number has held. A July 2026 report noted a British rider hoping to set a new land speed record at the Bonneville Speedway, which is a fair measure of how the 2018 figure still functions as the benchmark in the discipline. Since the record she has built a second career as an inspirational speaker, giving talks built around the planning, testing and trust that the run required. She also ran the Inspired183 YouTube channel, where she posted material about the project. [edit]

In the press she is presented as an engineer's athlete rather than a pure racer: a helmeted figure in a skinsuit folded into the wake of a dragster, described in coverage with more attention to gearing ratios and still-air pockets than to personality. That framing suits her. She gives interviews in plain, technical language and tends to credit the team, the driver and the testing schedule before herself.

Her public presence is small and deliberate. The Facebook page for the project and the Inspired183 YouTube channel carry project material rather than lifestyle content, and her speaking work leans on the same story of preparation and nerve. The result is a public image built almost entirely on one number, which she has not tried to compete with. [edit]

iFANN has not yet collected fame data for Denise Mueller-Korenek, so no placement in the Global Fame Rankings can be stated for her. She is not on the September 2026 iFAMOUS Rankings flagship list either. Her recognition runs through record books, engineering coverage and the occasional viral clip of the run rather than through the attention economy that the rankings measure.

The audience around her has no formal name and no organized structure. It is a loose mix of cycling fans, land speed enthusiasts and engineers who follow paced-record attempts, plus the readers who find her through Guinness World Records and stay for the physics. Discussion tends to cluster on forums such as r/bicycling and under clips of the Bonneville footage, where the same questions recur: how the pacing works, what the gearing is, and how a rider holds a line at that speed.

Engagement back is modest. The project's Facebook page has drawn a few thousand followers, and the Inspired183 channel carries her own explanations of the attempt. There are no fan campaigns, birthday projects or streaming pushes attached to her, which is unsurprising for a record holder in a niche discipline. What she has instead is a durable place in the retelling of the sport's history, which is a different kind of attention and a slower one. [edit]

Her surname points to a marriage, but no source in the public record names a partner or gives dates, so the "Korenek" half of her name remains unexplained on paper.

The gearing on the record bike was tall enough that a single pedal stroke at speed covered a startling distance, and the run only works if the cyclist stays locked in the driver's still-air pocket. Drift out of it and the air resistance at 180 mph becomes unsurvivable.

She was 45 at the time of the run, which is often mentioned alongside the record because speed records of this kind are usually the business of riders in their twenties.

The most repeated story about her is the lineage itself: the paced bicycle record dates to 1899, and in more than a century of attempts no woman had held the outright mark until she did. [edit]

Mueller-Korenek has kept her family life out of the public record. The sources available do not name her parents, any siblings, a spouse or children, and she has not discussed a household in interviews. Her married surname suggests a partner at some point, but no name or date is confirmed anywhere in the coverage of her record. She grew up in the Encinitas area of San Diego County and has remained connected to California. [edit]

Her record attempt was a team effort, built around a modified dragster and its driver, a crew of engineers and the Project Speed organization. The custom carbon KHS bicycle was purpose-built for the run. Her speaking work and the Inspired183 channel carry the project's story to audiences outside cycling. [edit]

Mueller-Korenek has not discussed her romantic life publicly, and the sources covering her record do not name a partner, a marriage or a divorce. Her surname suggests a marriage at some point, but no name, date or current status is confirmed in any available account. As of 2026, her relationship status is not publicly documented. [edit]

No credible financial outlet has published a net worth figure for Denise Mueller-Korenek, and the celebrity net worth trackers that cover athletes do not list her. With no published estimates to draw on, iFANN's own editorial research places her current net worth at approximately $1 Million as of 2026, a figure that reflects a niche record holder's income rather than a mainstream sponsorship portfolio.

The money in her career comes from a small number of streams. Paced land speed record attempts are funded largely through sponsorship and equipment partnerships, with bicycle and component makers supplying machines and gear in exchange for visibility. Her 2018 run generated substantial press, including coverage from the BBC, ESPN and The Wall Street Journal, but press coverage of that kind does not convert directly into endorsement income the way a Tour de France result would.

The steadier revenue is speaking. She works as an inspirational speaker, and the Bonneville story travels well outside cycling because it is about preparation, trust and a single attempt after years of testing. Corporate and conference engagements of that sort typically pay in the low to mid five figures per appearance, and a modest calendar of them forms the backbone of her earnings.

Her public footprint is deliberately small. The project's Facebook page has drawn a few thousand followers and the Inspired183 YouTube channel carries project material rather than commercial content, so there is no meaningful advertising or merchandise operation attached to her name. She has not published a book, licensed a product line or taken an executive role in the cycling industry. The estimate reflects that profile: a record holder with a speaking career, modest sponsorship history and no large-scale business ventures behind her. [edit]

Her principal honour is the Guinness World Record for paced bicycle land speed, ratified after the September 2018 run at Bonneville. She also holds the earlier women's paced record from 2016. No national federation, Olympic or industry awards are documented for her. [edit]