FTP did not Update following race effort

(David Veeneman (ZR-8)) #1

My FTP is 248W. I just did a 30km (48 mins) race on Zwift and Zwiftpower had my average power at 256W but I did not get an updated FTP in Zwift.

Any ideas why not? TIA

(Steven Alcorn) #2

I’m pretty sure Zwift would take 95% of the best 20-minute period of your 256W average workout, so that’s not guaranteed to be better than your current FTP of 248W.

(Alexander Perdon (CTWT)) #3

According to Riegel your FTP would be 252 watt.

(David Veeneman (ZR-8)) #4

thank you Steven! I’m a bit of a newbie to cycling yet so I appreciate the response.

(David Veeneman (ZR-8)) #5

Thanks Alexander! I’m just figuring out this cycling thing, appreciate the response.