Help processing a photo set from an overcast day

I found this output example a little bit underexposed but if I change tone curve or levels it’s overexposed and spectators bright too much (orange and pink t-shirts ones). The grass was more bright (light yellow)

I tried different approaches for example tried to isolate the runner with a vignetting, saturate yellow(grass) and green(trees), desaturate “a la Ryan Millier”(example) …

I’m not sure what I can get from this photo that’s the problem.

Thanks