Teams

Childers: Clinton

2025 IA 18 & Over Adult League · 4.0 Men

15 players · average NTRP 3.75 / IOWA

No matches recorded for this roster in this league — it may be a placeholder registration, or the season may not have started.

View scouting list →
Schedule6 played
2025-04-12vs Sichterman: NDACLost 23
W#1 DoublesWilliam Hughes / Pranav Puri vs Sean Donovan / Brent Foss6-4, 3-6, 1-0
L#1 SinglesRyan Cahalan vs Ryan Murphy4-6, 4-6
W#2 DoublesSteffen Timmer / John Stierman vs Kunj Saxena / Brian Rohr7-6, 7-6
L#2 SinglesJoseph Millam vs Seth Boysen3-6, 3-6
L#3 DoublesKevin Halligan / Joe Slavens vs Fred Radunzel / Terry Shie1-6, 3-6
2025-03-29vs Gustas & Brown: BlackhawkWon 31
L#1 DoublesJohn Stierman / Michael Addabbo vs John Bothwell / Quinn Robinson4-6, 4-6
W#1 SinglesSteffen Timmer vs Nathan Williams7-5, 6-3
W#2 DoublesJoe Slavens / Kevin Halligan vs Jeff Mullenix / Adam Ernsting6-4, 6-3
W#3 DoublesWilliam Hughes / Randy Childers vs Rick Brown / Zachary Manders6-2, 6-0
2025-03-08vs Garner: SmithfieldLost 23
L#1 DoublesJoe Slavens / William Hughes vs Tyler Karrels / Trevor McCann4-6, 4-6
W#1 SinglesSteffen Timmer vs Tim Carstensen6-0, 6-1
L#2 DoublesJohn Stierman / Kevin Halligan vs Charles Errington / Patrick Cosgrove2-6, 6-3, 1-0
W#2 SinglesRyan Cahalan vs Rob Taylor6-2, 6-0
L#3 DoublesJoseph Millam / Randy Childers vs Robert Bowers / Jeffrey Garner6-7, 6-2, 0-1
2025-02-22vs Sichterman: NDACLost 23
W#1 DoublesDaniel Martens / William Hughes vs Fred Dery / Brian Rohr7-6, 6-7, 1-0
L#1 SinglesSteffen Timmer vs David Hash3-6, 2-6
W#2 DoublesMichael Addabbo / Jim Luebke vs Jim Sichterman / Fred Radunzel6-3, 4-6, 1-0
L#2 SinglesRyan Cahalan vs Ryan Murphy1-6, 5-7
L#3 DoublesHans Schnekloth / John Stierman vs Terry Shie / Benjamin Curley1-6, 1-6
2025-02-01vs Garner: SmithfieldWon 50
W#1 DoublesJohn Stierman / Jim Luebke vs Robert Bowers / Tom Randall7-5, 6-3
W#1 SinglesSteffen Timmer vs Charles Errington6-1, 6-1
W#2 DoublesJoe Slavens / William Hughes vs Kyle Suther / Patrick Cosgrove6-4, 4-6, 1-0
W#2 SinglesRyan Cahalan vs Tim Carstensen7-5, 6-3
W#3 DoublesDaniel Ellard / Garrett Ellard vs Steven Odegaard / Christopher Schirm6-1, 6-1
2025-01-18vs Gustas & Brown: BlackhawkLost 14
L#1 DoublesJohn Stierman / Jim Luebke vs Brenton Kuchera / Nicholas Petaros1-6, 6-3, 0-1
L#1 SinglesJoe Slavens vs Quinn Robinson2-6, 2-6
L#2 DoublesWilliam Hughes / Randy Childers vs John Bothwell / Chris Gustas4-6, 4-6
L#2 SinglesJoseph Millam vs Nathan Williams4-6, 3-6
W#3 DoublesDaniel Ellard / Guenter Kierblewski vs Adam Ernsting / Jeff Mullenix3-6, 7-5, 1-0
A tie can be incomplete. Tell us if someone is missing.
i
Grouped by tie — one fixture, several lines. A line shows only when a player on it is someone we have indexed, so an early-season tie for a newly-added team can look short. This also means the line count here will not match the header, which counts individual player appearances.

Flight standings for 4.0 Men have not been collected yet. Where we have them we show every team in the flight ranked, with this team highlighted. The crawler is still filling in older seasons and flights.

ScoutingWhere each opponent usually plays

Signed-in extra: whether this captain plays strict strength order or mixes it up, from every doubles line they have put out. Create a free account to see it.

Roster averages 3.60 estimated across 12 rated players. No lineup is published in advance, so the column below is where each player has actually been used — a captain's habits are the best available forecast. Sign in and claim your record to see who you have played.

3.86
Steffen Timmer
usually #1 Singles 50%, also #1 Doubles 25% · published
3.82
William Hughes
usually #1 Doubles 50%, also #2 Doubles 33% · published
3.77
Jim Luebke
usually #1 Doubles 67%, also #2 Doubles 33% · published
Daniel Martens
usually #1 Doubles 100% · published 4
3.71
Garrett Ellard
usually #3 Doubles 100% · published
3.61
Ryan Cahalan
usually #2 Singles 75%, also #1 Singles 25% · published
3.59
Randy Childers
usually #3 Doubles 67%, also #2 Doubles 33% · published
3.57
John Stierman
usually #1 Doubles 50%, also #2 Doubles 33% · published
3.55
Guenter Kierblewski
usually #3 Doubles 100% · published
3.51
Kevin Halligan
usually #2 Doubles 67%, also #3 Doubles 33% · published
3.51
Joe Slavens
usually #2 Doubles 40%, also #1 Singles 20% · published
3.37
Daniel Ellard
usually #3 Doubles 100% · published 3.5
3.37
Joseph Millam
usually #2 Singles 67%, also #3 Doubles 33% · published
Michael Addabbo
usually #2 Doubles 50%, also #1 Doubles 50% · published
Pranav Puri
usually #1 Doubles 67%, also #3 Doubles 33% · published
Established pairs

Doubles pairs from this roster with three or more matches together anywhere — ordered by performance against what the rating gap predicted, not by record.

Joe Slavens + Guenter Kierblewski3252% games+4.5% vs expected
Kevin Halligan + Jim Luebke1447% games+3.4% vs expected
Daniel Ellard + Guenter Kierblewski3643% games−2.0% vs expected
Kevin Halligan + John Stierman0545% games−3.2% vs expected
William Hughes + John Stierman5852% games−6.7% vs expected
Michael Addabbo + Kevin Halligan2444% gamesnot enough data
Michael Addabbo + Jim Luebke6064% gamesnot enough data
Kevin Halligan + Guenter Kierblewski2441% gamesnot enough data
Roster

Ordered by our estimated dynamic rating, which is why two players at the same published level are not tied — a published 4.0 says nothing about where inside the band someone sits. Lines played in this team’s season are shown beside each name.

Steffen Timmer
10W–8L career · 8 lines in 2025
<1%83%17%
3.86
William Hughes
22W–22L career · 6 lines in 2025
1%89%10%
3.82
Jim Luebke
14W–14L career · 3 lines in 2025
3%92%5%
3.77
4
Daniel Martens
1W–1L career · type S · 1 line in 2025
not enough data
Garrett Ellard
4W–4L career · 1 line in 2025
7%91%2%
3.71
Ryan Cahalan
7W–5L career · 4 lines in 2025
21%79%<1%
3.61
Randy Childers
17W–27L career · 3 lines in 2025
26%74%<1%
3.59
John Stierman
23W–37L career · 6 lines in 2025
31%69%<1%
3.57
Guenter Kierblewski
23W–40L career · 1 line in 2025
37%63%<1%
3.55
Kevin Halligan
19W–35L career · 3 lines in 2025
47%53%<1%
3.51
Joe Slavens
21W–23L career · 5 lines in 2025
48%52%<1%
3.51
3.5
Daniel Ellard
12W–19L career · type A · 2 lines in 2025
<1%81%18%
3.37
Joseph Millam
3W–7L career · 3 lines in 2025
<1%82%18%
3.37
Michael Addabbo
28W–22L career · 2 lines in 2025
not enough data
Pranav Puri
8W–2L career · 3 lines in 2025
not enough data

Three percentages are where each player stands right now: the chance they are below their band, inside it, or above it, on the way they are playing this season. The number on the right is our estimated dynamic rating, which USTA never publishes. This is today rather than a forecast of December, because a forecast has to assume future matches and cannot know whether someone will even be offered them. Percentages are blank where a player has too few matches this season, or at a level where the model does not yet beat a base-rate guess; the estimate is a weaker claim than a probability and survives where those do not.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.