MLB
Ryan Dempster
MLB pitcher, two-time All-Star, 2013 World Series with Boston
2 sourced records. Each exercise has a top recorded mark and its evidence. Check the date, age, effort and method before you compare.
Ryan Dempster marathon
Ryan Dempster's recorded marathon is 4:42:11. Performance date: 2023-04-17. Age at the time: 45. This was a competition result. The source at runnersworld.com gives this mark. Source type: news report. Confidence is medium.
Compare your marathon with Ryan Dempster
2023 Boston Marathon · Retired, age 45
Source quote and limits
“Dempster ran a time of 4:42:11.”
2023
- Marathon4:42:11
Quote and details
“Dempster ran a time of 4:42:11.”
Ryan Dempster half marathon
Ryan Dempster's recorded half marathon is 1:50:00. Source date: 2023-03-18. The effort is unknown. The source at bostonglobe.com gives this mark. Source type: news report. Confidence is medium.
Compare your half marathon with Ryan Dempster
Retired, training for the 2023 Boston Marathon
Source quote and limits
“Dempster has been training for six months and completed a half-marathon in 1 hour 50 minutes.”
Time given to the minute only (1 hour 50 minutes). The race and its date are unstated; it was during his six months of training before the 2023 Boston Marathon. Found through a Gemini Deep Research report (batch of 2026-10-30).
2023
- Half marathon1:50:00
Quote and details
“Dempster has been training for six months and completed a half-marathon in 1 hour 50 minutes.”
Photo: Keith Allison on Flickr (Original version) UCinternational (Crop), CC BY-SA 2.0, via Wikimedia Commons. Cropped.