Index: net/Makefile
===================================================================
--- net/Makefile
+++ net/Makefile
@@ -1412,6 +1412,7 @@
     SUBDIR += tcpmssd
     SUBDIR += tcpproxy
     SUBDIR += tcpreen
+    SUBDIR += tcprtt
     SUBDIR += tcpsg
     SUBDIR += tcpshow
     SUBDIR += tcpslice
Index: net/tcprtt/Makefile
===================================================================
--- /dev/null
+++ net/tcprtt/Makefile
@@ -0,0 +1,28 @@
+# $FreeBSD$
+
+PORTNAME=	tcprtt
+DISTVERSION=	g20190704
+CATEGORIES=	net
+
+MAINTAINER=	rs@netflix.com
+COMMENT=	Measures the TCP handshake RTT using the stats(9) statistics framework
+
+LICENSE=	BSD2CLAUSE
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	KlaraSystems
+GH_TAGNAME=	a7b97c1f0701c3846e1fbe2cf18bbf5aadbb7c63
+
+PLIST_FILES=	bin/tcprtt man/man8/${PORTNAME}.8.gz
+
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ${OSVERSION} < 1300035
+IGNORE=		not supported on older CURRENT, no kernel support
+.endif
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/tcprtt ${STAGEDIR}${PREFIX}/bin
+	${INSTALL_MAN} ${WRKSRC}/tcprtt.8 ${STAGEDIR}${PREFIX}/man/man8
+
+.include <bsd.port.mk>
Index: net/tcprtt/distinfo
===================================================================
--- /dev/null
+++ net/tcprtt/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1562700472
+SHA256 (KlaraSystems-tcprtt-g20190704-a7b97c1f0701c3846e1fbe2cf18bbf5aadbb7c63_GH0.tar.gz) = 8accb85354df2c0245ee261fc78c04edb06b4378a3291c6cdbbae8a111efa33b
+SIZE (KlaraSystems-tcprtt-g20190704-a7b97c1f0701c3846e1fbe2cf18bbf5aadbb7c63_GH0.tar.gz) = 3495
Index: net/tcprtt/pkg-descr
===================================================================
--- /dev/null
+++ net/tcprtt/pkg-descr
@@ -0,0 +1,2 @@
+The tcprtt utility reliably measures the TCP handshake round trip time
+using the stats(9) statistics framework.