Sports v3.0.0
Does New York Road Runners work on iPhone Duo?
It works, but with black bars. New York Road Runners 3.0.0 is built with the iOS 26.4 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- iOS 26.4 SDK
- Version 3.0.0, read Nov 2, 2026
- iPad version
- No
- Phone-only layout today
- Latest version
- v3.0.0
- Sep 18, 2026
- Duo in release notes
- Not yet
About New York Road Runners
New York Road Runners is made by New York Road Runners, Inc. and first came out on the App Store in February 2025. It has 75 ratings on the US App Store, averaging 2.2 stars. Version 3.0.0 came out on Sep 18, 2026 and needs iOS 16.4 or later. It's free to download. Among the 27 health & fitness apps we track on the US App Store, 9 already fill the inner display, 4 are partly adapted and 14 still show black bars. By number of ratings, New York Road Runners is #25 of them.
From its App Store listing:
Whether you’re racing, spectating, or supporting the community, stay updated on all things NYRR. Track your favorite runners in real time, support community programs, and stay updated on races year-round – from weekly events to the TCS New York City Marathon. * Live Runner Tracking – Track your favorite runners with real-time race-day updates * Stay Informed – Get schedules, alerts, and key race d…
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including New York Road Runners. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
App build,
Version 3.0.0 is built with the iOS 26.4 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.4 SDK
Latest release notes
Version 3.0.0 · Sep 18, 2026
* Seamless Discovery – Find races, training, and community programs in seconds * Smart Race-Day Tools – Fresh navigation and updated tracking features for an effortless race day
Questions
Does New York Road Runners work on iPhone Duo?
It works, but with black bars. New York Road Runners 3.0.0 is built with the iOS 26.4 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does New York Road Runners work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use New York Road Runners in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Why does New York Road Runners have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will New York Road Runners fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of New York Road Runners within about a day of its release and update this page.
What can I do about the black bars until then?
Use New York Road Runners on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.