Right now, her best is the 3:57.15 she ran to finish runner-up in Paris last month, one of four top-three finishes she secured across the Diamond League season. But at the final in Zurich on Thursday, she would love to add a fifth and to edge closer to Ciara Mageean's Irish record of 3:55.87. Conditions are unlikely to comply, with cool weather and heavy rain forecast, but Healy comes into it after a lifetime best over 800m in London last weekend, clocking 2:00.19.