The Padres transferred Kolek to the 60-day injured list Sunday.
Kolek (forearm) has been playing catch but hasn't yet thrown off a mound, per MLB.com.
Kolek (forearm) is rehabbing at San Diego's team complex in Arizona, but he has not yet resumed throwing, per MLB.com.
The Padres placed Kolek on the 15-day injured list Wednesday due to right forearm tendinitis.
Kolek (2-0) earned the win over Boston on Friday, allowing one hit and striking out two batters over two scoreless innings.
The Padres selected Kolek during the 2023 Rule 5 Draft on Wednesday.
Kolek was promoted to Triple-A Tacoma on Thursday.