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Jeff Conine

MLB

Jeff Conine

MLB first baseman and outfielder ("Mr. Marlin"), two-time World Series champion

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2 sourced records. Each exercise has a top recorded mark and its evidence. Check the date, age, effort and method before you compare.

Jeff Conine marathon

Jeff Conine's recorded marathon is 6:23:05. Performance date: 2018-02-05. Age at the time: 51. This was a competition result. The source at worldmarathonchallenge.com gives this mark. Source type: official result.

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2018 World Marathon Challenge, race 7 of 7: Miami (North America) · Retired MLB player; seventh marathon in seven days

Source quote and limits
“Jeff Conine United States 06:46:19 06:52:20 07:41:52 07:58:15 07:39:21 07:39:55 06:23:05”

2018 - Lists of competitors and race results (World Marathon Challenge)

Official results table, columns Antarctica, Africa, Australia, Asia, Europe, S America, N America; 06:23:05 is the N America (Miami) race, his fastest of the seven. The page says the final race finished in Miami on February 5, 2018. The other six races (06:46:19 to 07:58:15) are slower and not stored. Found through a Gemini Deep Research report (batch of 2026-10-30).

  1. 2018

    • Marathon6:23:05

      CompetitionRetired MLB player; seventh marathon in seven days

      Official result, worldmarathonchallenge.com2018-02-05 · age 51

      Quote and details
      “Jeff Conine United States 06:46:19 06:52:20 07:41:52 07:58:15 07:39:21 07:39:55 06:23:05”

      2018 - Lists of competitors and race results (World Marathon Challenge)2018 World Marathon Challenge, race 7 of 7: Miami (North America)

Jeff Conine Ironman triathlon

Jeff Conine's recorded Ironman triathlon is 14:43:45. Performance date: 2008-10-11. Age at the time: 42. This was a competition result. The source at nbcwashington.com gives this mark. Source type: news report. Confidence is medium.

2008 Ironman World Championship, Kona · Retired MLB player, age 42, sponsor's exemption entry

Source quote and limits
“completed his first Ironman late Saturday in 14 hours, 43 minutes and 45 seconds”

Jeff Conine Is an Ironman (NBC Washington)

2008 Ironman World Championship, Kona. The 2008 results list (tri226.de PDF, place 1499) also shows 14:43:45; Active.com gives 14:43:35.

  1. 2008

    • Ironman triathlon14:43:45

      CompetitionRetired MLB player, age 42, sponsor's exemption entry

      News report, nbcwashington.com2008-10-11 · age 42medium confidence

      Quote and details
      “completed his first Ironman late Saturday in 14 hours, 43 minutes and 45 seconds”

      Jeff Conine Is an Ironman (NBC Washington)2008 Ironman World Championship, Kona

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Photo: Rabbethan, CC BY-SA 4.0, via Wikimedia Commons. Cropped.