23U
Jason Udelhofen
Potosi, Wisconsin 27
Races
0
Wins
2
Top 5
16
Top 10
Recent Activity
-
SUN JUL 6 2025DNSDubuque Fairgrounds Speedway Dubuque, Iowa | 3/10 mi
#23U IMCA Late Model
-
SUN JUN 22 202510thDubuque Fairgrounds Speedway Dubuque, Iowa | 3/10 mi
#23U IMCA Late Model
-
SUN JUN 8 202514thDubuque Fairgrounds Speedway Dubuque, Iowa | 3/10 mi
#23U IMCA Late Model
-
SUN JUN 1 20258thDubuque Fairgrounds Speedway Dubuque, Iowa | 3/10 mi
#23U IMCA Late Model
-
SUN MAY 18 202511thDubuque Fairgrounds Speedway Dubuque, Iowa | 3/10 mi
#23U IMCA Late Model
Recent Seasons
2025
4Starts
5Races
0Wins
14.5%Percentile
2024
11Starts
11Races
0Wins
29.6%Percentile
2023
10Starts
10Races
0Wins
44.9%Percentile
Frequent Rivals
Head-to-Head Records
71 opponents
#1
Peosta, Iowa
#2
Camanche, Iowa
#3
Dubuque, Iowa
#4
Dubuque, Iowa
#5
Dubuque, Iowa
#6
Galena, Illinois
#7
Dubuque, Iowa
#8
Monroe, Wisconsin
#9
Dubuque, Iowa
#10
Monroe, Wisconsin
#11
Blue Grass, Iowa
#12
Lanark, Illinois
#13
Mount Vernon, Iowa
#14
Davenport, Iowa
#15
Center Point, Iowa
#16
Hazel Green, Wisconsin
#17
Sherrill, Iowa
#18
DeWitt, Iowa
#19
Eagle, Nebraska
#20
Sherrill, Iowa
#21
Sterling, Illinois
#22
McCausland, Iowa
#23
Dyersville, Iowa
#24
Grand Mound, Iowa
#25
Davenport, Iowa
#26
Bloomington, Wisconsin
#27
Fairfax, Iowa
#28
Freeport, Illinois
#29
Davenport, Iowa
#30
Dubuque, Iowa
#31
Moscow, Iowa
#32
Pearl City, Illinois
#33
Browntown, Wisconsin
#34
Freeport, Illinois
#35
East Moline, Illinois
#36
Cassville, Wisconsin
#37
Stockton, Illinois
#38
Waterloo, Iowa
#39
Silvis, Illinois
#40
DeWitt, Iowa
#41
Robins, Iowa
#42
Maquoketa, Iowa
#43
Cedar Rapids, Iowa
#44
Cedar Rapids, Iowa
#45
Independence, Iowa
#46
Blue Grass, Iowa
#47
Rock Falls, Illinois
#48
Waterloo, Iowa
#49
Davenport, Iowa
#50
Davenport, Iowa
#51
Dixon, Illinois
#52
Freeport, Illinois
#53
Stanwood, Iowa
#54
Elkhorn, Nebraska
#55
Browntown, Wisconsin
#56
Sun River, Montana
#57
Dyersville, Iowa
#58
Moline, Illinois
#59
Chelsea, Iowa
#60
Farley, Iowa
#61
Thomson, Illinois
#62
Dubuque, Iowa
#63
Dubuque, Iowa
#64
Cedar Rapids, Iowa
#65
East Galesburg, Illinois
#66
Marshalltown, Iowa
#67
Carencro, Louisiana
#68
North Liberty, Iowa
#69
Manchester, Iowa
#70
McCausland, Iowa
#71
Green Island, Iowa
Eric Pollard
Peosta, Iowa
4.2%
Win Rate
1–23
24 Starts
Steve Johnson
Camanche, Iowa
36.4%
Win Rate
8–14
22 Starts
Ryan Hill
Dubuque, Iowa
42.9%
Win Rate
9–12
21 Starts
Luke Merfeld
Dubuque, Iowa
4.8%
Win Rate
1–20
21 Starts
Ron Klein
Dubuque, Iowa
40.0%
Win Rate
8–12
20 Starts
TJ Fortmann
Galena, Illinois
30.0%
Win Rate
6–14
20 Starts
Joel Callahan
Dubuque, Iowa
5.0%
Win Rate
1–19
20 Starts
David Webster
Monroe, Wisconsin
66.7%
Win Rate
8–4
12 Starts
Colton Leal
Dubuque, Iowa
63.6%
Win Rate
7–4
11 Starts
Ty Webster
Monroe, Wisconsin
36.4%
Win Rate
4–7
11 Starts
Gary Webb
Blue Grass, Iowa
18.2%
Win Rate
2–9
11 Starts
Bryce Garnhart
Lanark, Illinois
22.2%
Win Rate
2–7
9 Starts
Clay Simpson
Mount Vernon, Iowa
0.0%
Win Rate
0–9
9 Starts
Evan Miller
Davenport, Iowa
0.0%
Win Rate
0–7
7 Starts
Bobby Hansen
Center Point, Iowa
80.0%
Win Rate
4–1
5 Starts
Darren Mish
Hazel Green, Wisconsin
40.0%
Win Rate
2–3
5 Starts
Jeff Tharp
Sherrill, Iowa
0.0%
Win Rate
0–5
5 Starts
Dave Hammond
DeWitt, Iowa
100.0%
Win Rate
4–0
4 Starts
Michael Leal
Eagle, Nebraska
75.0%
Win Rate
3–1
4 Starts
Lyle Klein
Sherrill, Iowa
25.0%
Win Rate
1–3
4 Starts
Travis Denning
Sterling, Illinois
0.0%
Win Rate
0–4
4 Starts
Mitch Morris
McCausland, Iowa
0.0%
Win Rate
0–4
4 Starts
Chase Brunscheen
Dyersville, Iowa
66.7%
Win Rate
2–1
3 Starts
Ryan Claeys
Grand Mound, Iowa
66.7%
Win Rate
2–1
3 Starts
Brandon Loos
Davenport, Iowa
66.7%
Win Rate
2–1
3 Starts
Matt Mish
Bloomington, Wisconsin
66.7%
Win Rate
2–1
3 Starts
Dalton Simonsen
Fairfax, Iowa
66.7%
Win Rate
2–1
3 Starts
Jaden Fryer
Freeport, Illinois
33.3%
Win Rate
1–2
3 Starts
Matt Ryan
Davenport, Iowa
33.3%
Win Rate
1–2
3 Starts
Jeremiah Hurst
Dubuque, Iowa
0.0%
Win Rate
0–3
3 Starts
Nick Marolf
Moscow, Iowa
0.0%
Win Rate
0–3
3 Starts
Ethan Pickard
Pearl City, Illinois
0.0%
Win Rate
0–3
3 Starts
James Curran
Browntown, Wisconsin
100.0%
Win Rate
2–0
2 Starts
Mike Fryer
Freeport, Illinois
100.0%
Win Rate
2–0
2 Starts
Chance Huston
East Moline, Illinois
100.0%
Win Rate
2–0
2 Starts
Lance Mish
Cassville, Wisconsin
100.0%
Win Rate
2–0
2 Starts
Josh Weltzin
Stockton, Illinois
100.0%
Win Rate
2–0
2 Starts
JD Auringer
Waterloo, Iowa
50.0%
Win Rate
1–1
2 Starts
Jesse Bodin
Silvis, Illinois
50.0%
Win Rate
1–1
2 Starts
Kelly Pestka
DeWitt, Iowa
50.0%
Win Rate
1–1
2 Starts
Luke Pestka
Robins, Iowa
50.0%
Win Rate
1–1
2 Starts
Tom Pestka
Maquoketa, Iowa
50.0%
Win Rate
1–1
2 Starts
Dakota Simonsen
Cedar Rapids, Iowa
50.0%
Win Rate
1–1
2 Starts
CJ Horn
Cedar Rapids, Iowa
0.0%
Win Rate
0–2
2 Starts
Sean Johnson
Independence, Iowa
0.0%
Win Rate
0–2
2 Starts
Andy Nezworski
Blue Grass, Iowa
0.0%
Win Rate
0–2
2 Starts
Brandt Cole
Rock Falls, Illinois
100.0%
Win Rate
1–0
1 Starts
Brandon Davis
Waterloo, Iowa
100.0%
Win Rate
1–0
1 Starts
Spencer Diercks
Davenport, Iowa
100.0%
Win Rate
1–0
1 Starts
Keith Haislip
Davenport, Iowa
100.0%
Win Rate
1–0
1 Starts
Brandon Hamburg
Dixon, Illinois
100.0%
Win Rate
1–0
1 Starts
Joe Huenefeld
Freeport, Illinois
100.0%
Win Rate
1–0
1 Starts
Jerry Johnson
Stanwood, Iowa
100.0%
Win Rate
1–0
1 Starts
Robbie Jorgensen
Elkhorn, Nebraska
100.0%
Win Rate
1–0
1 Starts
Mike Kline
Browntown, Wisconsin
100.0%
Win Rate
1–0
1 Starts
Michael Leach
Sun River, Montana
100.0%
Win Rate
1–0
1 Starts
Mitch Manternach
Dyersville, Iowa
100.0%
Win Rate
1–0
1 Starts
Mack Mulvany
Moline, Illinois
100.0%
Win Rate
1–0
1 Starts
Dallon Murty
Chelsea, Iowa
100.0%
Win Rate
1–0
1 Starts
Jason Rauen
Farley, Iowa
100.0%
Win Rate
1–0
1 Starts
Joe Ross
Thomson, Illinois
100.0%
Win Rate
1–0
1 Starts
Steve Schueller
Dubuque, Iowa
100.0%
Win Rate
1–0
1 Starts
Mike Weidemann
Dubuque, Iowa
100.0%
Win Rate
1–0
1 Starts
Scott Welsh
Cedar Rapids, Iowa
100.0%
Win Rate
1–0
1 Starts
Josh Woodruff
East Galesburg, Illinois
100.0%
Win Rate
1–0
1 Starts
Tom Berry Jr.
Marshalltown, Iowa
0.0%
Win Rate
0–1
1 Starts
Kevin Dupont
Carencro, Louisiana
0.0%
Win Rate
0–1
1 Starts
Carter Johnson
North Liberty, Iowa
0.0%
Win Rate
0–1
1 Starts
Zach Less
Manchester, Iowa
0.0%
Win Rate
0–1
1 Starts
Jake Morris
McCausland, Iowa
0.0%
Win Rate
0–1
1 Starts
Don Pataska
Green Island, Iowa
0.0%
Win Rate
0–1
1 Starts
Dud Tracks
Min. 10 startsAll Tracks
Dubuque Fairgrounds Speedway
Dubuque, Iowa 3/10 mi (0.3023 mi)
24
Starts
25
Races
0
Wins
33.7%
Percentile
Maquoketa Speedway
Maquoketa, Iowa 1/4 mi (0.2677 mi)
1
Starts
1
Races
0
Wins
25.0%
Percentile
West Liberty Raceway
West Liberty, Iowa 1/2 mi (0.5038 mi)
0
Starts
1
Races
0
Wins
0.0%
Percentile
Closest Tracks to Hometown
Point-to-point from Potosi, Wisconsin Active = at least one Dirt Late Model race in the past year.Grant County Fair Speedway
Lancaster, Wisconsin 1/3 mi (0.3490 mi)
11.4
miles
Active
Dubuque Fairgrounds Speedway
Dubuque, Iowa 3/10 mi (0.3023 mi)
14.5
miles
Active
300 Raceway
Farley, Iowa 3/8 mi (0.3724 mi)
23.2
miles
Active
Lafayette County Speedway
Darlington, Wisconsin 3/8 mi (0.3582 mi)
30.7
miles
Active
Maquoketa Speedway
Maquoketa, Iowa 1/4 mi (0.2677 mi)
42.7
miles
Active
Fayette County Speedway
West Union, Iowa 3/10 mi (0.3143 mi)
58.8
miles
Active
Independence Motor Speedway
Independence, Iowa 3/10 mi (0.3000 mi)
61.9
miles
Active
Cedar County Raceway
Tipton, Iowa 1/4 mi (0.2639 mi)
66.9
miles
Inactive
Winneshiek Raceway
Decorah, Iowa 3/10 mi (0.3109 mi)
68.5
miles
Active
Hawkeye Downs Speedway
Cedar Rapids, Iowa 1/4 mi (0.2703 mi)
71.9
miles
Active
Benton County Speedway
Vinton, Iowa 1/4 mi (0.2743 mi)
76.3
miles
Active
Rockford Speedway
Loves Park, Illinois 1/4 mi (0.2647 mi)
89.1
miles
Inactive
Highway 3 Raceway
Allison, Iowa 1/2 mi (0.4717 mi)
105.8
miles
Inactive
Beaver Dam Raceway
Beaver Dam, Wisconsin 3/10 mi (0.3036 mi)
109.3
miles
Inactive
Dodge County Fair Speedway
Beaver Dam, Wisconsin 1/2 mi (0.5265 mi)
111.5
miles
Inactive
Knox County Fairgrounds
Galesburg, Illinois 1/2 mi (0.5183 mi)
124.2
miles
Inactive
Chateau Speedway
Lansing, Minnesota 3/10 mi (0.2926 mi)
134.9
miles
Inactive
Eldon Raceway
Eldon, Iowa 1/2 mi (0.5272 mi)
145.3
miles
Inactive
Oshkosh SpeedZone
Oshkosh, Wisconsin 3/8 mi (0.3594 mi)
145.9
miles
Inactive
SK Speedway
Unity, Wisconsin 1/3 mi (0.3237 mi)
152.0
miles
Inactive
No tracks match this filter.
Basic Statistics
| Year | Points | Races | Starts | Wins | Top 5 | Top 10 |
|---|---|---|---|---|---|---|
| 2025 | 327 | 5 | 4 | — | — | 2 |
| 2024 | 785 | 11 | 11 | — | — | 6 |
| 2023 | 753 | 10 | 10 | — | 2 | 8 |
| 2019 | 45 | 1 | 0 | — | — | — |
| CAREER | — | 27 | 25 | 0 | 2 | 16 |
Advanced Statistics
| Year | Races | Starts | Percentile | Avg Fin | Best | Win % | Top 5 % | Top 10 % | Feat % |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 5 | 4 | 14.5% | 10.75 | 8 | 0.0% | 0.0% | 50.0% | 80.0% |
| 2024 | 11 | 11 | 29.6% | 10.36 | 6 | 0.0% | 0.0% | 54.5% | 100.0% |
| 2023 | 10 | 10 | 44.9% | 8.60 | 4 | 0.0% | 20.0% | 80.0% | 100.0% |
| 2019 | 1 | 0 | — | — | — | 0.0% | 0.0% | 0.0% | 0.0% |
| CAREER | 27 | 25 | 33.3% | 9.72 | — | 0.0% | 8.0% | 64.0% | 92.6% |
By Tier
| Tier | Races | Wins | Top 5 | Top 10 | Avg Fin |
|---|---|---|---|---|---|
| Sportsman Late Models | 25 | 0 | 2 | 15 | 9.52 |
| Limited Late Models | 2 | 0 | 0 | 1 | 12.00 |
Ranking History
Year-end rankings by tier and state2024
#850
#94
2023
#1305
#137
#87
#48
Race Log
Showing 1–27 of 27 races-
SUN JUL 6 2025DNSDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUN 22 202510thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN JUN 8 202514thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN JUN 1 20258thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN MAY 18 202511thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 25 20248thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 18 202412thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 11 202414thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 4 20246thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SAT AUG 3 202410thMaquoketa Speedway Maquoketa, Iowa |1/4 mi #23U IMCA Late Model
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SUN JUL 28 202410thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
WED JUL 24 202415thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U Late ModelPro Late Model Tour
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SUN JUL 14 202412thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN JUL 7 20247thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUN 30 20249thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U Late ModelPro Late Model Tour
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SUN JUN 23 202411thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 27 202311thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 20 202310thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN AUG 13 20237thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUL 30 20234thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUL 16 202312thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUL 9 20235thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUL 2 202310thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN JUN 11 202310thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
-
SUN JUN 4 20237thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SUN MAY 21 202310thDubuque Fairgrounds Speedway Dubuque, Iowa |3/10 mi #23U IMCA Late Model
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SAT AUG 24 2019DNSWest Liberty Raceway West Liberty, Iowa |1/2 mi #23U IMCA Late ModelIMCA Deery Brothers Summer Series