Dathan Ritzenhein (@djritzenhein) 's Twitter Profile
Dathan Ritzenhein

@djritzenhein

Dad, Husband, Coach of the On Athletics Club @on_running

ID: 17769153

linkhttps://www.on-running.com/en-us/athletes/the-on-athletics-club calendar_today01-12-2008 02:30:19

3,3K Tweet

44,44K Followers

878 Following

NBC Olympics & Paralympics (@nbcolympics) 's Twitter Profile Photo

Yared Nuguse ends the night with a WORLD RECORD in the Wanamaker Mile. ๐Ÿ™Œ The first Wanamaker Mile world record in seven years! ๐Ÿ“บ NBC & Peacock

On (@on_running) 's Twitter Profile Photo

๐Ÿ“ธ The secret to our athletesโ€™ success? Soft Wins. ๐ŸŒž Warm-weather training ๐ŸŒŠ Sea-level workouts ๐Ÿค Team bonding Our elite OAC athletes put the #Cloudsurfer2โ€™s CloudTec Phaseยฎ cushioning and Soft Helionโ„ข superfoam to the test during a recent trip to Arizona ๐Ÿ‡บ๐Ÿ‡ธ Find out

๐Ÿ“ธ The secret to our athletesโ€™ success? Soft Wins.

 ๐ŸŒž Warm-weather training
 ๐ŸŒŠ Sea-level workouts
๐Ÿค  Team bonding

Our elite OAC athletes put the #Cloudsurfer2โ€™s CloudTec Phaseยฎ cushioning and Soft Helionโ„ข superfoam to the test during a recent trip to Arizona ๐Ÿ‡บ๐Ÿ‡ธ

Find out
CITIUS MAG (@citiusmag) 's Twitter Profile Photo

THIS SPORT! To close out the 2025 indoor season, 1500m Olympic bronze medalist and U.S. mile record holder Yared Nuguse is heading to Boston University to try and re-take the WORLD RECORD in the mile from Jakob Ingebrigtsen. On Feb. 8th, Nuguse broke the world record in

THIS SPORT! 

To close out the 2025 indoor season, 1500m Olympic bronze medalist and U.S. mile record holder Yared Nuguse is heading to Boston University to try and re-take the WORLD RECORD in the mile from Jakob Ingebrigtsen.

On Feb. 8th, Nuguse broke the world record in
FloTrack (@flotrack) 's Twitter Profile Photo

Sage Hurta Klecker of OAC delivered a commanding solo performance at the Last Chance National Qualifier, clocking 2:36.13 in the womenโ€™s 1000m. Running alone, she maintained her pace and composure from start to finish. #BULastChance

Chris Chavez (@chrischavez) 's Twitter Profile Photo

Yared Nuguse now owns three of the top six fastest mile performances on the all-time list. 1. ๐Ÿ‡ณ๐Ÿ‡ด Jakob Ingebrigtsen - 3:45.14 (Liรฉvin, 2025) 2. ๐Ÿ‡บ๐Ÿ‡ธ Yared Nuguse - 3:46.63 (New York City, 2025) 3. ๐Ÿ‡บ๐Ÿ‡ธ Hobbs Kessler - 3:46.90 (New York City, 2025) 4. ๐Ÿ‡ช๐Ÿ‡น Yomif Kejelcha - 3:47.01

CITIUS MAG (@citiusmag) 's Twitter Profile Photo

Shoot for the moon and if you miss, youโ€™ll still run really fast ๐Ÿ˜… Yared Nuguseโ€™s attempt to reclaim his world indoor record in the mile comes up just short, but he nevertheless clocks a dominant 3:47.22 victory. Nuguse now has four of the ten fastest indoor miles ever run.

Shoot for the moon and if you miss, youโ€™ll still run really fast ๐Ÿ˜…

Yared Nuguseโ€™s attempt to reclaim his world indoor record in the mile comes up just short, but he nevertheless clocks a dominant 3:47.22 victory. Nuguse now has four of the ten fastest indoor miles ever run.
FloTrack (@flotrack) 's Twitter Profile Photo

WORLD LEAD ๐ŸŒŽ Josette Andrews runs her way to a 14:44.80 women's indoor 5k world lead at the Last Chance National Qualifier at BU. Emily Mackay in second clocks 14:45.81 for the second-fastest time in the world this year. #BULastChance

CITIUS MAG (@citiusmag) 's Twitter Profile Photo

Win from the front!! ๐Ÿ˜ค Josette Andrews gets the victory, a World standard, and a PB all while holding off a hard late charge from Emily MacKay, clocking a 14:44.80 5000m at the BU Last Chance Meet for a two second best. ๐Ÿ“ธ: Justin Britton

Win from the front!! ๐Ÿ˜ค

Josette Andrews gets the victory, a World standard, and a PB all while holding off a hard late charge from Emily MacKay, clocking a 14:44.80 5000m at the BU Last Chance Meet for a two second best.

๐Ÿ“ธ: <a href="/Justin_Britton/">Justin Britton</a>
FloTrack (@flotrack) 's Twitter Profile Photo

World Lead โœ… U.S. No. 2 All-Time Indoors โœ… Josette Andrews with the impressive 14:44.80 5k run at the Last Chance National Qualifier At BU. ๐Ÿ“ธ: Jan Figueroa ๐Ÿ‡ต๐Ÿ‡ท #BULastChance

World Lead โœ…
U.S. No. 2 All-Time Indoors โœ…

Josette Andrews with the impressive 14:44.80 5k run at the Last Chance National Qualifier At BU.

๐Ÿ“ธ: <a href="/janfigueroa07/">Jan Figueroa ๐Ÿ‡ต๐Ÿ‡ท</a> 

#BULastChance
DyeStat (@dyestat) 's Twitter Profile Photo

Chipping away ๐Ÿ“ˆ Josette Norris Andrews sustains her U.S. No. 2๏ธโƒฃ all-time spot for the indoor 5000m, but drops her personal best down a couple of seconds to post a world lead at the BU Last Chance Qualifier! ๐Ÿ“ธ: John Nepolitan

Chipping away ๐Ÿ“ˆ

<a href="/JosetteNorris/">Josette Norris Andrews</a> sustains her U.S. No. 2๏ธโƒฃ all-time spot for the indoor 5000m, but drops her personal best down a couple of seconds to post a world lead at the BU Last Chance Qualifier!

๐Ÿ“ธ: John Nepolitan
Kenya One Sports ๐Ÿ‡ฐ๐Ÿ‡ช (@tonnyke11) 's Twitter Profile Photo

Ethiopia's Tsigie Gebreselama ๐Ÿ‡ช๐Ÿ‡น defeats Ruth Chepngetich ๐Ÿ‡ฐ๐Ÿ‡ช in the Lisbon Half Marathon as course record falls ๐Ÿ‘‡๐Ÿพ Top 3 finishers ๐Ÿ‘‡๐Ÿพ 1. Tsigie Gebreselama ๐Ÿ‡ช๐Ÿ‡น 1:04:21 (CR, PB) 2. Ruth Chepngetich ๐Ÿ‡ฐ๐Ÿ‡ช 1:06:20 3. Abeba Aregawi ๐Ÿ‡ธ๐Ÿ‡ช 1:06:36 (NR)

Ethiopia's Tsigie Gebreselama ๐Ÿ‡ช๐Ÿ‡น defeats Ruth Chepngetich ๐Ÿ‡ฐ๐Ÿ‡ช in the Lisbon Half Marathon as course record falls ๐Ÿ‘‡๐Ÿพ

Top 3 finishers ๐Ÿ‘‡๐Ÿพ 

1. Tsigie Gebreselama ๐Ÿ‡ช๐Ÿ‡น 1:04:21 (CR, PB)
2. Ruth Chepngetich ๐Ÿ‡ฐ๐Ÿ‡ช 1:06:20
3. Abeba Aregawi ๐Ÿ‡ธ๐Ÿ‡ช 1:06:36 (NR)
Chris Chavez (@chrischavez) 's Twitter Profile Photo

.Grand Slam Track has announced the following changes to its fields for this weekend's meet in Kingston, Jamaica. ๐Ÿ‡ฏ๐Ÿ‡ฒ Athlete Scratched | Replacement Shamier Little โ†’ Cassandra Tate Quincy Hall โ†’ Zandrion Barnes Cameron Murray โ†’ Eric Edwards Trevor Bassitt โ†’ Assinie Wilson

.<a href="/GrandSlamTrack/">Grand Slam Track</a> has announced the following changes to its fields for this weekend's meet in Kingston, Jamaica. ๐Ÿ‡ฏ๐Ÿ‡ฒ

Athlete Scratched | Replacement
Shamier Little โ†’ Cassandra Tate

Quincy Hall โ†’ Zandrion Barnes

Cameron Murray โ†’ Eric Edwards

Trevor Bassitt โ†’ Assinie Wilson
On (@on_running) 's Twitter Profile Photo

Back on the podium ๐Ÿฅˆ With a time of 2:17:41, Hellen Obiri sets a new marathon PB and takes the podium for the third time in a row. This marks the second fastest finish in Boston history. Congrats, Hellen ๐Ÿ’ #DreamOn #HellenObiri

Back on the podium ๐Ÿฅˆ

With a time of 2:17:41, <a href="/hellen_obiri/">Hellen Obiri</a> sets a new marathon PB and takes the podium for the third time in a row.

This marks the second fastest finish in Boston history. Congrats, Hellen ๐Ÿ’

#DreamOn #HellenObiri
On (@on_running) 's Twitter Profile Photo

New logo. Same dream. ๐Ÿ’ญ OAC Global, Europe, and Oceania are rewriting whatโ€™s possible in running. Catch the OAC in action at Penn Relays. New logo drops in Philadelphia today. ๐Ÿ’ซ #DreamOn #OnAthleticsClub #OAC

Penn Relays (@pennrelays) 's Twitter Profile Photo

๐Ÿšจ PENN RELAYS RECORD ๐Ÿšจ Josette Andrews of the On Athletics Club wins the #PennRelays Olympic Development womenโ€™s 1500 meters in 4:01.76! On

๐Ÿšจ PENN RELAYS RECORD ๐Ÿšจ 

Josette Andrews of the On Athletics Club wins the #PennRelays Olympic Development womenโ€™s 1500 meters in 4:01.76! <a href="/on_running/">On</a>
Penn Relays (@pennrelays) 's Twitter Profile Photo

And itโ€™s another win for the On Athletics Club! Geordie Beamish wins the Benjamin Franklin Mile for the second time, unleashing a perfect kick and crossing the line first in 3:56.85. #PennRelays On

And itโ€™s another win for the On Athletics Club! Geordie Beamish wins the Benjamin Franklin Mile for the second time, unleashing a perfect kick and crossing the line first in 3:56.85. #PennRelays <a href="/on_running/">On</a>
David Monti ๐Ÿฅ‘ (@d9monti) 's Twitter Profile Photo

@josettenorris won her 1st USATF title today. The OnAthleticsClub athlete clocked a champs record 15:05.55 to win the #USATF5K in #Indianapolis (old record 15:10, @mollyhuddle, 2014). "She's really had a great winter and spring," said her coach Dathan Ritzenhein. ๐Ÿ“ท Robby Andrews

@josettenorris won her 1st <a href="/usatf/">USATF</a> title today.

The <a href="/OnAthleticsClub/">OnAthleticsClub</a> athlete clocked a champs record 15:05.55 to win the #USATF5K in #Indianapolis (old record 15:10, @mollyhuddle, 2014).

"She's really had a great winter and spring," said her coach <a href="/djritzenhein/">Dathan Ritzenhein</a>.

๐Ÿ“ท <a href="/RA_Andrews/">Robby Andrews</a>
The Olympic Games (@olympics) 's Twitter Profile Photo

"It feels like I'm in such a renaissance of 1500-metre track." Olympic bronze medallist Yared Nuguse ๐Ÿ‡บ๐Ÿ‡ธ on the global race on the track - and how his calm demeanor away from it helps him along the way. USATF | Team USA