The Last Sunday in May Summary: A Racer’s Comeback
TL;DR: One Seat, Four Weeks, No Sponsor
Four weeks before the Indianapolis 500, a thirty-year-old single mother is managing a struggling dirt track in Haubstadt, Indiana, when a retired racing pioneer walks into her life with an offer she never expected.
In The Last Sunday in May, Kate Clark Stone places Mackenzie “Mack” Williams between two lives: the stable, exhausting routine of raising her daughter and caring for her injured father, and the open-cockpit career she abandoned a decade ago.
The novel follows the countdown from that offer to race day, tracking the physical training, sponsorship battles, mechanical failures, and family fractures that shape Mack’s attempt to qualify for the sport’s most famous event.
- Who it follows: Mack Williams, a former dirt-track prodigy who retired at twenty after an unplanned pregnancy and her father’s career-ending crash.
- The setup: Janet Joyner offers Mack an unsponsored, last-minute seat to attempt to qualify for the Indy 500.
- The obstacles: Four weeks of preparation, hostile sponsors, online harassment, a custody threat from her ex, and a violent qualification crash.
- The core themes: Second chances, sisterhood and family reconciliation, motherhood versus personal ambition, and the barriers women face in motorsports.
- The format: A chronological countdown narrated through 39 chapters, plus text messages, emails, social media threads, and newspaper clippings.
The Last Sunday in May Summary: The Full Story
Spoilers ahead. This section recounts the novel’s main events, including its ending.
Ten years before the story begins, twenty-year-old Mack Williams was a rising dirt-track driver. She was the youngest driver, and the first woman, to win a major sprint midget race at Eldora Speedway.
Her career stopped abruptly. Mack became pregnant by motorcycle racer Kelley Caruthers, and her father, Wes Williams, suffered a near-fatal crash that left him with a traumatic brain injury and chronic seizures.
Mack gave up racing. She raised her daughter, Shaw, ran the family’s insolvent dirt track in Haubstadt, and cared for Wes.
When the novel opens, Mack is thirty and worn down by daily track operations. With four weeks left before the Indianapolis 500, retired driver Janet Joyner approaches her after an opening-night race.
Janet owns Janet Joyner Racing and offers Mack a last-minute, unsponsored seat to attempt qualification. Mack hesitates, but Wes pushes her to take it.
She leaves Shaw with Wes and his girlfriend, Billie Summit, and moves to Indianapolis to stay with her estranged older sister, Laurie. Laurie is a corporate M&A attorney in a downtown condo, and she agrees to help Mack chase sponsorships.
At the speedway, Mack meets her team: lead engineer Jimmy, engineer Lucie, and JJR’s star driver, Leo Raisman. Leo is steady, popular, and happens to be Shaw’s favorite racer.
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Mack completes a custom seat fitting and passes her rookie orientation test at speeds above 215 mph. She trains at a driver gym and on simulators, and grows closer to Leo.
After a night at a burger bar where Leo shields her from an unruly patron, they spend a night together. Mack insists they stay strictly teammates, fearing distraction, gossip, and a repeat of her past.
Meanwhile, Wes, Billie, and Shaw arrive in a large motorhome. The trip brings Wes and Laurie face to face for the first time in four years, surfacing old resentments.
Mack struggles in early practice with understeer and slow lap times. Jimmy and Leo tell her to stop acting like a lone wolf and to tell the crew exactly what the car needs.
She asks for a looser setup on the final practice day and posts midfield speeds above 228 mph.
On qualification weekend, Kelley Caruthers appears in the paddock with Shaw. He mocks Mack’s career and threatens to take Shaw to Spain, leaving her shaken.
During her official qualification run, a tire blows in turn two at over 220 mph. The car slams into the wall, fracturing Mack’s right hand and destroying JJR’s #11 car.
Without funds to rebuild, Janet tells Mack her Indy 500 attempt is finished. Mack retreats to her father’s RV, where Wes reveals he is selling the Haubstadt house and the dirt track to travel full-time with Billie.
Stripped of her home, her career, and her sense of identity, Mack borrows Leo’s 1969 Pontiac GTO Judge and drives through rural Indiana at night. She ends up at the empty speedway, lying on the yard of bricks.
There she recognizes that she has spent a decade letting life happen to her. She reconciles with Leo and resolves to stop running.
The next morning, Laurie reveals she spent the previous day assembling a consortium of female investors, including the Women’s Bar Association, to fund emergency repairs. Leo donates components from his own backup car.
The crew works overnight and builds a patchwork machine nicknamed the “Frankencar.” With her broken hand strapped into a carbon-fiber splint, Mack returns for Sunday’s final qualification session.
Her first run averages 230.040 mph and places her 32nd on the 33-car grid. When rival driver Roethlisberger threatens to bump her, Mack pulls into the priority fast lane, surrendering her time for one final attempt.
Following Janet’s advice to delay lifting off the throttle by a microsecond, Mack flat-foots all four turns. She posts a 230.811 mph four-lap average and locks in 31st place as the closing cannon fires.
On race day, Mack stands on the grid as the only woman in the thirty-three-car field, with 300,000 fans in the stands. Wes, Billie, Shaw, Laurie, and Leo are all present, and Laurie files counter-petitions to block Kelley’s custody threats.
Mack decides to move permanently to Indianapolis with Shaw, sell the dirt track, and race full-time. The green flag waves, and she throttles across the yard of bricks at full send.
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Characters In This Book
| Character | Role |
|---|---|
| Mackenzie “Mack” Williams | Thirty-year-old single mother, dirt-track manager, and driver of the #11 car for Janet Joyner Racing. |
| Wes Williams | Mack and Laurie’s father, a seven-time dirt-track champion living with a traumatic brain injury and chronic seizures. |
| Shaw Westly Williams | Mack’s ten-year-old daughter. |
| Laurie Williams | Mack’s thirty-four-year-old sister, a corporate M&A attorney in Indianapolis who secures investor backing. |
| Leo Raisman | Star driver of JJR’s #10 car, Mack’s teammate and romantic interest. |
| Janet Joyner | Owner of Janet Joyner Racing and a pioneering former female driver who gives Mack her opportunity. |
| Billie Summit | Wes’s girlfriend, a former nurse from East Tennessee. |
| Kelley Caruthers | Mack’s ex-partner and Shaw’s father, a MotoGP rider who reappears at Indy. |
| Jimmy | Lead engineer and pit strategist for Mack’s #11 car. |
| Lucie | Lead engineer for Leo’s #10 car. |
| Jericho Blair (“Jericho Jr.”) | Reigning Indy 500 champion and member of the “Track Pack” friend group. |
| Boomer Compton | Fellow IndyCar driver and member of the “Track Pack.” |
| Hollis Whitfield | VP of Marketing at Hartley Harvester Manufacturing. |
| Dante Sabourian | Head of the Indy Motor Speedway safety team. |
| Hana | Veteran motorsports television reporter. |
What Drives the Story
| Theme | How the Book Presents It |
|---|---|
| Second Chances and Reclaiming Passion | Mack returns to competitive driving ten years after retiring, taking a seat with four weeks of preparation. |
| Family Reconciliation and Sisterhood | Mack and Laurie move from four years of distance to a working partnership built around sponsorships and legal filings. |
| Barriers for Women in Motorsports | Only nine women had qualified for the Indy 500 before Mack; she faces dismissive sponsors, online harassment, and scrutiny over motherhood. |
| Motherhood and Personal Identity | Mack moves from an anxiety-driven approach to parenting toward pursuing her own career in front of her daughter. |
| Teamwork and Vulnerability | Mack abandons her lone-wolf approach, communicating car needs to her engineers and accepting help from her sister and teammate. |
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Book Details at a Glance
- Genre & Subgenre: Contemporary Fiction / Sports Fiction / Women’s Fiction / Romance
- Core Narrative Tropes: Underdog Comeback, Second-Chance Career, Prodigy Returned, Sister Reconciliation, Found Family, Single Motherhood
- Tone & Atmosphere: Energetic, gritty, realistic, fast-paced, and emotionally warm
- Primary Conflict: Mack’s internal guilt and fear of failure balanced against external obstacles — no sponsorship, a severe crash, a broken hand, and her ex-partner’s custody threats
- Pacing Style: Chronological countdown structure building toward qualification weekend and race day
- Book Structure: 39 chapters with an epilogue and epigraph, plus interspersed text messages, corporate emails, social media threads, and newspaper clippings
- ISBN: 978-1662533525 (ISBN-10: 1662533527)
- Pages: 301
Quotes from The Last Sunday in May
“If it’s got an engine, you can send it.”
“A bad day of racing is still better than not racing at all.”
“Indy is always worth it, Williams. Always.”
“You can’t choose everything that happens to you in a race, but you can choose to never, ever quit. That’s what racing really is.”
“Walk away from me, Mack. I’ll figure out how to live with that. But don’t walk away from yourself.”
“Do the work, pray for luck, and don’t ever, ever give up hope.”
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