good idea

if FM objective is merely 重为参与 why torture oneself and run so much
SG Marathon 2025 cut off time is 7hr 30min, average pace to complete is 10:40/km...can walk all the way!
Last Pen starting around 5.30am. Go plus another 6hr plus , you'd hit WCH at a time when you really dont wanna be there, if they are not changing from 2024 route. Quite terror actually....then you hope for the best and not DNF due to heat/cramps etc.....coz cutting so close to a borderline pace that any slowdown = gg
One needs to try running at 11am on a cloudless day on hot unshaded asphalt to look see what it feels like (try TMCR or something). Last monday i tried liao, but cycling. Similar lah.....Nicoll and Guiilemard/Paya Lebar.
Either that or pray for cloudy but not rainy weather.
edit - to and fro both directions on WCH is a total of 7.6km distance, no cover.
But the good thing is that with a 7:30 pace prob for 5k distance (esp if that is zone 2), within 4 months still quite possible to guarantee a decent + confirmed finish. If couch potato standard+sedentary+BMI well over 25 for past 20 yrs, then that is another story.
Bonus...most probably not exposed to the sun (well before 10am, see the sun ray angle and he ran a 4:38)
Actually even for Keppel Rd towards CBD, still exposed to the sun for the left side, if really take so long to run the FM.
Early morning prior to 10am then is shaded by the viaduct.