protected RequestStat createRequestStat() {
        BasicRequestStat basicRequestStat = new BasicRequestStat();
        requestStats.add(basicRequestStat);
        RequestStat.putInSessionContext(basicRequestStat, context);
        return basicRequestStat;
    }
Override to track your own request stats.
zuul-core/src/main/java/com/netflix/zuul/filters/endpoint/ProxyEndpoint.java