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MS
Mark Stelzner
MaleCalifornia2002–2026
10
Total Finishes
7
Different Races
5
States (10%)
1:23:54
PR (6:24/mi)
1:57:02
Average
-0:20:55
Faster (first to last)
Medal House
2025
Mystic Half Marathon
1:29:41
#26 overall#25 gender
2015
North Face Endurance Challenge - Championships
2:16:03
#338 overall#244 gender
2013
Rock 'n' Roll Las Vegas
2:04:08
#3954 overall#2490 gender
2013
Rock 'n' Roll San Diego
2:04:52
#5643 overall#3334 gender
2011
US Half Marathon 2 "The Other Half"
1:58:06
#583 overall#424 gender
2006
Rock 'n' Roll Arizona Marathon
1:57:11
#3243 overall#2062 gender
2006
OUC Orlando Half Marathon
2:06:17
#545 overall#545 gender
2005
Life Time Chicago Half Marathon + 5K
1:56:37
#1836 overall#1266 gender
2005
OUC Orlando Half Marathon
1:57:47
#729 overall#514 gender
2005
Rock 'n' Roll Chicago Half Marathon
2:05:00
#2249 overall#1490 gender
2003
Run SF "Golden Gate City" 5K/10K/13.1
2:32:04
#1636 overall#839 gender
2002
Run SF "Golden Gate City" 5K/10K/13.1
1:44:49
#795 overall#533 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Mystic Half MarathonMystic | CT | 1:23:54 | #8 |
| 2025 | Mystic Half MarathonMystic | CT | 1:29:41 | #26 |
| 2015 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:16:03 | #338 |
| 2013 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:04:08 | #3954 |
| 2013 | Rock 'n' Roll San DiegoSan Diego | CA | 2:04:52 | #5643 |
| 2011 | US Half Marathon 2 "The Other Half" | — | 1:58:06 | #583 |
| 2006 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 1:57:11 | #3243 |
| 2006 | OUC Orlando Half MarathonOrlando | FL | 2:06:17 | #545 |
| 2005 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:56:37 | #1836 |
| 2005 | OUC Orlando Half MarathonOrlando | FL | 1:57:47 | #729 |
| 2005 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:05:00 | #2249 |
| 2003 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 2:32:04 | #1636 |
| 2002 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 1:44:49 | #795 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
4 racesCTConnecticut
2 racesILIllinois
2 racesDCDistrict of Columbia
0 racesMAMassachusetts
0 races50-State Challenge
5/ 50 states
45 states to go