Hey folks - I was looking through a workout for today, and was surprised by the TSS values for the two and was hoping someone could help me understand. Here are the workout details:

- Clouds Rest + 1: 60 minutes, 81 TSS. Description: Clouds Rest +1 is 3x12-minute sets of 30-second VO2max repeats at 130% FTP with 20 seconds of active recovery between repeat and 5 minutes of recovery between each set of repeats.
- San Joaquin: 60 minutes, 90 TSS. Description: San Joaquin is 3x12-minute sets of 50 seconds at 130% FTP with 50 seconds of active recovery between each interval.

Intervals for both are at 130% FTP, and the active recovery in each wonâ€™t add much to the overall TSS.

For Clouds Rest, there are 42 30-second intervals at 130% FTP, for a total of 21 minutes at 130% FTP. For San Joaquin there are 24 50-second intervals at 130% FTP, for a total of 20 minutes at 130% FTP.

Given that - how does San Joaquin (less overall time at interval intensity) have 10% higher TSS than Clouds Rest +1? Thanks in advance for any thoughts.