KI
Kate Irvin-Pfeffer
USAMenBirth dateJan 31, 1979
Height-
Weight-
Kate Irvin-Pfeffer is a United States middle-distance runner, born on January 31, 1979. He competes primarily in the 800m, 1500m and Mile.
His personal bests include 2:12.04 in the 800m, 4:24.60 in the 1500m, 4:51.41 in the Mile, 9:51.84 in the 3000m and 16:56.56 in the 5000m. He is currently active on the international athletics circuit, representing United States.
Key facts
1500 m
4:24.60
Mile Short Track
4:52.03
Age
47 years old
As of Sep 16, 2026: 1500 m 4:24.60, Mile Short Track 4:52.03, 2021 season best 31:15 (Nov 25, 2021, Southport, CT (USA)) · 47 years old
PB
Personal bests
2:12.04
4:24.60
4:51.41
9:51.84
16:56.56
1:21:20
2:49:31
4:32.06
9:51.84
56:53
35:53
1:00:56
2:14.54
4:52.03
4:47.8HT
29:23
28:55
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2021 | 5MilesRoad | 31:15 | - | Nov 25, 2021 | ↓ | Southport, CT (USA) |
| 2019 | 5MilesRoad | 30:14 | - | Nov 28, 2019 | ↓ | Southport, CT (USA) |
| 2019 | Semi | 1:21:34 | - | Nov 9, 2019 | ↑ | - |
| 2019 | Marathon | 2:49:31 | - | Dec 8, 2019 | ↑ | Sacramento, CA (USA) |
| 2018 | 10MilesRoa | 1:00:56 | - | May 6, 2018 | - | Philadelphia Blue Cross Broad Street Run 10 Mile |
| 2018 | Semi | 1:22:19 | - | Mar 18, 2018 | ↑ | New York Half Marathon, New York, NY |
| 2013 | Semi | 1:22:57 | - | May 18, 2013 | ↑ | Brooklyn, NY (USA) |
| 2013 | Marathon | 2:57:29 | - | Nov 3, 2013 | ↑ | New York City Marathon |
| 2010 | 5MilesRoad | 28:55 | - | Jan 9, 2010 | ↓ | New York, NY (USA) |
| 2010 | 10Kilometr | 36:56 | - | Jul 4, 2010 | ↓ | Atlanta, GA (USA) |
| 2010 | Semi | 1:21:20 | - | Oct 10, 2010 | ↑ | NY (USA) |
| 2010 | Marathon | 2:59:28 | - | Nov 7, 2010 | ↑ | New York City Marathon |
| 2009 | 1500m | 4:24.60 | - | May 11, 2009 | ↑ | Swarthmore, PA (USA) |
| 2009 | MileRoad | 4:47.8h | - | Sep 26, 2009 | ↑ | New York, NY (USA) |
| 2009 | 3000m-short-track | 9:51.84 | - | Feb 13, 2009 | ↑ | Boston, MA (USA) (i) |
| 2009 | 3000m | 9:51.84 | - | Feb 13, 2009 | ↑ | Boston, MA (USA) (i) |
| 2009 | 5000m | 16:56.56 | - | Apr 23, 2009 | ↑ | Philadelphia, PA (USA) |
| 2009 | 8Kilometre | 29:23 | - | Jan 10, 2009 | - | New York, NY (USA) |
| 2009 | 10Kilometr | 35:53 | - | Dec 6, 2009 | ↓ | New York, NY (USA) |
| 2009 | 15Kilometr | 56:53 | - | Dec 19, 2009 | - | New York, NY (USA) |
| 2009 | Semi | 1:22:42 | - | Oct 3, 2009 | ↑ | New York, NY (USA) |
| 2008 | 800m | 2:14.21 | - | Jul 5, 2008 | ↑ | Valatie, NY (USA) |
| 2008 | 1500m | 4:26.45 | - | Jun 14, 2008 | ↑ | Indianapolis, IN (USA) |
| 2008 | 1500m-short-track | 4:32.06 | - | Feb 9, 2008 | ↑ | New York, NY (USA) (i) |
| 2008 | 5000m | 17:13.19 | - | Apr 4, 2008 | ↑ | Princeton, NJ (USA) |
| 2007 | 800m | 2:12.43 | - | Jun 10, 2007 | ↑ | Uniondale, NY (USA) |
| 2007 | 800m-short-track | 2:14.54 | - | Feb 3, 2007 | ↑ | New York, NY (USA) (i) |
| 2007 | 1500m | 4:29.08 | - | Jul 14, 2007 | ↑ | New York, NY (USA) |
| 2007 | Mile | 4:51.41 | - | Jun 8, 2007 | ↑ | Holmdel, NJ (USA) |
| 2007 | mile-short-track | 4:53.36 | - | Feb 10, 2007 | ↑ | Boston, MA (USA) (i) |
| 2007 | 3000m-short-track | 10:02.92 | - | Feb 18, 2007 | ↑ | Boston, MA (USA) (i) |
| 2007 | 3000m | 10:02.92 | - | Feb 18, 2007 | ↑ | Boston, MA (USA) (i) |
| 2007 | 5000m | 17:11.41 | - | Apr 26, 2007 | ↑ | Philadelphia, PA (USA) |
| 2007 | 10Kilometr | 35:59 | - | Dec 9, 2007 | ↓ | New York, NY (USA) |
| 2006 | 800m | 2:15.01 | - | Feb 19, 2006 | ↑ | Boston, MA (USA) (i) |
| 2006 | 800m-short-track | 2:15.01 | - | Feb 19, 2006 | ↑ | Boston, MA (USA) (i) |
| 2006 | 1500m | 4:26.79 | - | Jul 15, 2006 | ↑ | Walnut, CA (USA) |
| 2006 | Mile | 4:52.03 | - | Jan 28, 2006 | ↑ | Boston, MA (USA) (i) |
| 2006 | mile-short-track | 4:52.03 | - | Jan 28, 2006 | ↑ | Boston, MA (USA) (i) |
| 2005 | 800m | 2:15.48 | - | Feb 19, 2005 | ↑ | Princeton, NJ (USA) (i) |
| 2005 | 800m-short-track | 2:15.48 | - | Feb 19, 2005 | ↑ | Princeton, NJ (USA) (i) |
| 2005 | 1500m | 4:30.29 | - | Jun 4, 2005 | ↑ | Waltham, MA (USA) |
| 2005 | MileRoad | 4:50.1h | - | Sep 24, 2005 | ↑ | New York, NY (USA) |
| 2005 | Mile | 4:54.66 | - | Apr 30, 2005 | ↑ | Philadelphia, PA (USA) |
| 2005 | mile-short-track | 4:58.8h | - | Feb 10, 2005 | ↑ | New York, NY (USA) (i) |
| 2004 | 1500m | 4:32.80 | - | May 29, 2004 | ↑ | Waltham, MA (USA) |
| 2001 | 800m | 2:12.04 | - | May 25, 2001 | ↑ | Decatur, IL (USA) |
| 2001 | 1500m | 4:35.94 | - | May 26, 2001 | ↑ | Decatur, IL (USA) |
| 2001 | 1500m-short-track | 4:38.42 | - | Mar 10, 2001 | ↑ | NCAA Div. I Indoor Championships |
| 2001 | Mile | 5:00.24 | - | Feb 24, 2001 | ↑ | Boston, MA (USA) (i) |
| 2001 | mile-short-track | 5:00.24 | - | Feb 24, 2001 | ↑ | Boston, MA (USA) (i) |
| 2000 | 800m | 2:14.14 | - | May 26, 2000 | ↑ | Naperville, IL (USA) |
| 2000 | 1500m | 4:34.49 | - | May 27, 2000 | ↑ | Naperville, IL (USA) |
| 2000 | 1500m-short-track | 4:40.23 | - | Mar 11, 2000 | ↑ | Bloomington, IN (USA) (i) |
| 1999 | 800m | 2:16.14 | - | Mar 6, 1999 | ↑ | Boston, MA (USA) (i) |
| 1999 | 800m-short-track | 2:16.14 | - | Mar 6, 1999 | ↑ | Boston, MA (USA) (i) |
| 1999 | 1500m | 4:38.94 | - | Mar 13, 1999 | ↑ | Ada, OH (USA) (i) |
| 1999 | 1500m-short-track | 4:38.94 | - | Mar 13, 1999 | ↑ | Ada, OH (USA) (i) |
| 1998 | 1500m | 4:42.07 | - | Mar 14, 1998 | ↑ | Waltham, MA (USA) (i) |
| 1998 | 1500m-short-track | 4:42.07 | - | Mar 14, 1998 | ↑ | NCAA Div. I Indoor Championships |
2021
1 performance| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
5MilesRoad | 31:15 | - | Nov 25 | Pequot Runners Thanksgiving Day Road Race, Southport, CT |
2019
5 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:49:31 | - | Dec 8 | California International Marathon, Sacramento, CA |
5MilesRoad | 30:14 | - | Nov 28 | Pequot Runners Thanksgiving Day Road Race, Southport, CT |
Semi | 1:21:34 | - | Nov 9 | CNO Financial Group Indianapolis Monumental Half Marathon & 5km, Indianapolis, IN |
Marathon | 2:54:44 | - | Jun 22 | Grandma's Marathon |
Semi | 1:23:15 | - | Jun 2 | Half Marathon, Fairfield, CT |
2018
2 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
10MilesRoa | 1:00:56 | - | May 6 | Philadelphia Blue Cross Broad Street Run 10 Mile |
Semi | 1:22:19 | - | Mar 18 | New York Half Marathon, New York, NY |
2013
3 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:57:29 | - | Nov 3 | New York City Marathon |
Semi | 1:22:57 | - | May 18 | Brooklyn Half Marathon, Brooklyn, NY |
Semi | 1:23:18 | - | Mar 17 | New York Half Marathon, New York, NY |
2010
5 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:59:28 | - | Nov 7 | New York City Marathon |
Semi | 1:21:20 | - | Oct 10 | Staten Island Half Marathon, NY |
10Kilometr | 36:56 | - | Jul 4 | Atlanta Peachtree Road Race, Atlanta, GA |
10Kilometr | 38:27 | - | Jun 12 | New York adidas Grand Prix, Icahn Stadium, New York, NY - Diamond Discipline |
5MilesRoad | 28:55 | - | Jan 9 | New York Fred Lebow Classic 5-M, New York, NY |
2009
17 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
15Kilometr | 56:53 | - | Dec 19 | New York NYRR Ted Corbitt 15 km, New York, NY |
10Kilometr | 35:53 | - | Dec 6 | New York Joe Kleinerman 10K, New York, NY |
Semi | 1:22:42 | - | Oct 3 | New York Grete's Great Gallop Half-Marathon, New York, NY |
MileRoad | 4:47.8HT | - | Sep 26 | New York NYRR Road Mile Ch., New York, NY |
5000m | 17:04.51 | - | Jul 11 | New York USATF Club Championships, New York, NY |
1500m | 4:26.66 | - | Jul 10 | New York USATF Club Championships, New York, NY |
10Kilometr | 36:10 | - | Jul 4 | Atlanta Peachtree Road Race, Atlanta, GA |
1500m | 4:28.62 | - | Jun 13 | Waltham NB Boston Twilight Series, Waltham, MA |
10Kilometr | 37:16 | - | Jun 7 | New York Mini 10K, New York, NY |
1500m | 4:28.89 | - | May 30 | Indianapolis American Milers Club HP Series, Indianapolis, IN |
1500m | 4:29.72 | - | May 15 | Atlanta Georgia Tech Invitational, Atlanta, GA |
1500m | 4:24.60 | - | May 11 | Swarthmore Last Chance, Swarthmore, PA |
5000m | 16:56.56 | - | Apr 23 | Philadelphia Penn Relays, Philadelphia, PA - Olympic Development |
1500m | 4:30.57 | - | Apr 17 | Princeton Larry Ellis Invitational, Princeton, NJ |
1500m | 4:35.54 | - | Apr 4 | Philadelphia Penn Invite, Philadelphia, PA |
3000m-short-track | 9:51.84 | - | Feb 13 | Boston Valentine Invitational, Boston, MA (i) |
8Kilometre | 29:23 | - | Jan 10 | New York NYRR Fred Lebow Classic, New York, NY |
2008
7 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 4:34.46 | - | Jul 18 | Olathe USATF Club Championships, Olathe, KS |
800m | 2:14.21 | - | Jul 5 | Valatie USATF East Region Ch., Valatie, NY |
1500m | 4:26.45 | - | Jun 14 | Indianapolis American Milers Series, Indianapolis, IN |
1500m | 4:27.44 | - | May 31 | Indianapolis American Milers Series, Indianapolis, IN |
1500m | 4:34.29 | - | Apr 18 | Princeton Larry Ellis Invitational, Princeton, NJ |
5000m | 17:13.19 | - | Apr 4 | Princeton Sam Howell Invitational, Princeton, NJ |
1500m-short-track | 4:32.06 | - | Feb 9 | New York Collegiate Invitational, New York, NY (i) |
2007
10 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
10Kilometr | 35:59 | - | Dec 9 | New York Joe Kleinerman 10K, New York, NY |
1500m | 4:29.08 | - | Jul 14 | New York USATF Club Championships, New York, NY |
800m | 2:14.01 | - | Jul 14 | New York USATF Club Championships, New York, NY |
1500m | 4:30.53 | - | Jul 6 | Halifax Aileen Meagher Meet, Halifax |
1500m | 4:30.22 | - | Jun 15 | Bloomington Big Red National Meet, Bloomington, IN |
800m | 2:12.43 | - | Jun 10 | Uniondale Island Games, Uniondale, NY |
Mile | 4:51.41 | - | Jun 8 | Holmdel New Jersey International, Holmdel, NJ |
1500m | 4:32.82 | - | May 26 | Waltham Boston High Performance Series, Waltham, MA |
5000m | 17:11.41 | - | Apr 26 | Philadelphia Penn Relays OD, Philadelphia, PA |
5000m | 17:11.91 | - | Apr 6 | Princeton Sam Howell Invitational, Princeton, NJ |
Showing 1 - 50 of 96
Honours
No medals
FAQ
Frequently asked questions
What is Kate Irvin-Pfeffer's 1500 m personal best?
Kate Irvin-Pfeffer's 1500 m personal best is 4:24.60, set on May 11, 2009 in Swarthmore, PA (USA).
Which events does Kate Irvin-Pfeffer compete in?
Kate Irvin-Pfeffer competes in the 1500 m and Mile Short Track.
How did Kate Irvin-Pfeffer perform in 2021?
2021 season best: 31:15, set on Nov 25, 2021 in Southport, CT (USA).