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Verdict: A warm, well-written forbidden romance between a fading Australian tennis star and the umpire whose calls cost her a US Open. Many readers call it Cheyenne Blue’s best, with intense court scenes and a lovely ending — though non-fans may lose some of the tennis jargon.
Best for: Readers who want a sports romance with an unusual pairing and real career stakes.
Heat level: 🌶️🌶️ (readers praise the “sexy times”)
Rating: ★★★★☆ (3.9/5 — a 3.93 Goodreads average across 692 ratings, 3.72 on StoryGraph from 114 reviews, and 4.4 stars across 164 Amazon ratings)
Tropes: Forbidden love, enemies to lovers, athlete / official, stranded together, last shot at glory, slow burn.
Code of Conduct is Cheyenne Blue’s 2018 contemporary lesbian sports romance from Ylva Publishing. Viva Jones was once a top-ten player with a Grand Slam trophy, until an overzealous lineswoman’s foot-fault calls knocked her out of the US Open and a persistent wrist injury crushed her career. Fifteen months later, a chance meeting with that lineswoman, Gabriela Mendaro, forces her to rethink the past and the present.
It holds a 3.93 average across 692 Goodreads ratings, with 67% of them four or five stars, 3.72 on StoryGraph from 114 reviews, and 4.4 stars across 164 Amazon ratings.
What Is Code of Conduct About?
Away from the court, Gabriela is sexy, athletic and devoted to her career as an umpire, and she seems to be falling for Viva as fast as Viva falls for her. There is just one problem: players and officials can’t date.
With Viva unable to resist one last shot at glory in front of her home crowd, they have to weigh love against two careers.
What Works in This Book
- A fresh pairing: Readers enjoyed the insight into an official’s life, and the player-versus-umpire conflict.
- Court scenes: Tennis fans praise intense matches and the view inside a player’s head.
- Australian setting: Readers love Blue’s small-town Australia and sense of community.
- Chemistry and heat: Reviewers call the chemistry off the charts and the intimate scenes wonderfully written.
Book Synopsis
A tennis star on her last legs meets the umpire she blames for her downfall — and falls for her.
It’s a romance about breaking all the rules.
My Review
Blue builds a genuinely difficult obstacle: this isn’t a misunderstanding, it’s a rule that could cost Gabriela everything. Readers found themselves invested in every serve and torn between the two women’s ambitions.
The reservations are modest. Readers who don’t know tennis say some of the jargon was lost on them, and a few found it simply okay. One notes that Gabriela has almost no supporting cast of her own, which feels a little sad next to Viva’s.
My honest note: One of the stronger books on our tennis shelf.
| Element | In Code of Conduct |
|---|---|
| Central relationship | Viva Jones (tennis player) & Gabriela Mendaro (umpire) |
| Core tropes | Forbidden love, enemies to lovers, slow burn |
| Setting | Australia and the pro tennis tour |
| Heat level | 🌶️🌶️ |
| Length | 264 pages (about 91,000 words) |
| Ending | HEA |
| Content notes | Career-threatening injury |
How Spicy Is Code of Conduct?
Moderately. Readers praise the passion behind closed doors without describing it as a very explicit book.
The main heavy theme is Viva’s career-threatening wrist injury.
Who Should Read This Book?
You’ll likely love it if: you enjoy forbidden romance and sports with real stakes. It is on our sapphic sports romance list.
You may want to skip it if: sports jargon bores you.
In short: Game, set, forbidden match.
What Readers Are Actually Saying (September 2026)
On Goodreads the split is 28% five stars, 39% four, 28% three, 1% two and 1% one. On StoryGraph, 75% tagged it lighthearted and 62% emotional. Several longtime readers call it their favourite Cheyenne Blue book.
Why readers love it (according to the discourse): The forbidden conflict first. Second, the court scenes. Third, the Australian setting. Fourth, the chemistry.
What readers argue about and complain about: Tennis jargon, above everything. Second, a thin supporting cast for Gabriela.
The comparison worth making first: Slammed, another Ylva tennis romance, heavier on the sport.
Frequently Asked Questions
Why can’t Viva and Gabriela be together?
Under tennis rules, players and officials aren’t allowed to date — so a relationship could end Gabriela’s career as an umpire.
Does Code of Conduct have a happy ending?
Yes. Readers describe star-crossed lovers with a happy ending, and one calls the ending lovely.
Where is Code of Conduct set?
Largely in Australia, including a small town outside Brisbane, as well as on the pro tennis tour.
Do I need to know tennis?
No, though some readers who don’t follow tennis say parts of the match jargon went over their heads.
Is Code of Conduct on Kindle Unlimited?
Not when we checked; the Kindle edition was listed at $9.99. The audiobook, narrated by Claire Alain, is praised.
If You Loved Code of Conduct, Read These Next
Try Slammed. For more, browse our sapphic sports romance list or the full Book Reviews archive.
The Bottom Line
Code of Conduct sets out to make a player and an umpire fall for each other against the rules, and it does so warmly and convincingly. What holds it back is only some jargon. Recommended. Check Code of Conduct on Amazon →
The Eikna Overall Ranking
On the Eikna scale, Code of Conduct ranks as a very good sports romance — forbidden, heartfelt.
The Evidence Scorecard
Overall ★★★★☆ 3.9/5
- ✓ 3.93 average across 692 Goodreads ratings
- ✓ 67% of Goodreads ratings are four or five stars
- ✓ 3.72 on StoryGraph from 114 reviews
- ✓ 4.4 stars across 164 Amazon ratings
Romance ★★★★☆ 4/5
- ✓ Forbidden
- ✓ Enemies to lovers
- ✓ Off-the-charts chemistry
- ✓ Real obstacle
Characters ★★★★☆ 3.9/5
- ✓ Flawed, likeable leads
- ✓ Reserved Gabriela
- ✓ Warm community
- ✓ Thin cast for Gabriela
Writing ★★★★☆ 3.9/5
- ✓ Intense matches
- ✓ Descriptive
- ✓ Jargon for non-fans
- ✓ Well paced
Emotional Impact ★★★★☆ 3.8/5
- ✓ Tagged emotional by 62%
- ✓ Career versus love
- ✓ Angst and laughter
- ✓ Heart-melting
Heat Level ★★★☆☆ 3/5
- ✓ Sexy
- ✓ Behind closed doors
- ✓ Moderate
- ✓ Well written
Ending ★★★★☆ 4.2/5
- ✓ HEA
- ✓ Lovely
- ✓ Star-crossed resolved
- ✓ Standalone
Re-read Value ★★★★☆ 3.7/5
- ✓ $9.99 Kindle price
- ✓ 264 pages
- ✓ Praised audiobook
- ✓ Not on Kindle Unlimited
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