Teams

Carlson/Rietgraf - Summer 25

2025 ADULT 18 & OVER SUMMER · 4.5 Men

10 players · average NTRP 4.50 / NORTHERN

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 →
Schedule8 played
2025-07-16vs Seltz/Moran SummerLost 04
L#1 DoublesMax Sampson / Brady Lau vs Christopher Gustilo / Mathan Krishnappan6-4, 2-6, 0-1
L#1 SinglesPeter Rietgraf vs Bryce Johnson6-4, 5-7, 0-1
L#2 DoublesLukas Carlson / Luke Jordan vs James Kinnear / Christian Rovn0-6, 2-6
L#3 DoublesJohn Bartholet / Mark Magistad vs Jake Seltz / Jack Elvestrom6-3, 3-6, 0-1
2025-07-02vs Vyvyan/Tanis 2025Won 40
W#1 DoublesLuke Jordan / Brady Lau vs Mark Vyvyan / Jonathan Riermann6-3, 6-4
W#1 SinglesMax Sampson vs Ryan Kadelbach6-3, 6-2
W#2 DoublesJulian Bannach / Lukas Carlson vs Peter Tanis / Patrick Napurski6-3, 6-0
W#3 DoublesMark Magistad / Jonathan Onigkeit vs Bill Henney / Steve Gramins3-6, 6-1, 1-0
2025-06-25vs Northern/Hilpert/18&Over4.5MLost 04
L#1 DoublesMax Sampson / Jonathan Onigkeit vs Anshul Bharath / Tucker Combs2-6, 5-7
L#1 SinglesCharlie Sternberg vs Jack Nazy4-6, 5-7
L#2 DoublesLukas Carlson / Luke Jordan vs Burke Anderson / Michael Coleman1-6, 4-6
L#3 DoublesBrady Lau / John Bartholet vs Cullen Combs / Tyler Bates7-5, 4-6, 0-1
2025-06-18vs Choiniere - PIT Summer 4.5Won 32
W#1 DoublesLukas Carlson / Peter Rietgraf vs Andrew Schlichting / Aidan Schlichting6-3, 6-2
W#1 SinglesCharlie Sternberg vs Andrew Tang6-3, 6-4
W#2 DoublesMax Sampson / Jonathan Onigkeit vs Scott Potucek / Andrew Kumpel6-3, 6-1
L#2 SinglesLuke Jordan vs Peter Kaufhold2-6, 6-3, 0-1
L#3 DoublesBrady Lau / John Bartholet vs Anthony Helmer / Jeff Fedor6-4, 3-6, 1-0
2025-06-04vs Gullikson: redeemersLost 05
L#1 DoublesMax Sampson / Peter Rietgraf vs Oliver Summers / Adam Gustad5-7, 3-6
L#1 SinglesCharlie Sternberg vs Sam Skanse3-6, 2-6
L#2 DoublesLuke Jordan / John Bartholet vs Anh Doan / Aaron Johnson3-6, 6-7
L#2 SinglesBrady Lau vs Derek Kieckhafer3-6, 2-6
L#3 DoublesMark Magistad / Lukas Carlson vs William Kron / Neal Gambaiani3-6, 4-6
2025-05-21vs Northern/Hilpert/18&Over4.5MLost 05
L#1 DoublesPeter Rietgraf / Max Sampson vs Ben Wilson / Burke Anderson4-6, 7-6, 1-0
L#1 SinglesCharlie Sternberg vs Alex King4-6, 4-6
L#2 DoublesLuke Jordan / Jonathan Onigkeit vs Cullen Combs / David Stewart4-6, 0-6
L#2 SinglesLukas Carlson vs Scott Wall6-7, 0-6
L#3 DoublesMark Magistad / Julian Bannach vs Brendan Anderson / Michael Coleman6-7, 2-6
2025-05-14vs Saab - The Racketeers S25Split 22
W#1 DoublesLukas Carlson / Peter Rietgraf vs Lucas Martin / Sabastion Seeger3-6, 6-4, 1-0
W#1 SinglesCharlie Sternberg vs Daniel Saab6-0, 6-1
L#2 DoublesJohn Bartholet / Luke Jordan vs Christopher Michaelson / Reese Michaelson2-6, 3-6
L#3 DoublesMark Magistad / Brady Lau vs Ajeya Shekar / Sawyer Michaelson2-6, 3-6
2025-05-07vs Seltz/Moran SummerLost 23
L#1 DoublesLukas Carlson / Peter Rietgraf vs James Kinnear / Robert Crockarell2-6, 1-6
W#1 SinglesCharlie Sternberg vs Dave van der Sman6-3, 1-6, 1-0
L#2 DoublesJohn Bartholet / Brady Lau vs Christian Rovn / Jake Seltz3-6, 3-6
L#2 SinglesLuke Jordan vs Ryan Moran6-1, 4-6, 0-1
W#3 DoublesMax Sampson / Mark Magistad vs Justin Long / Michael Jung7-6, 2-6, 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 4.5 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 4.04 estimated across 9 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.

4.29
Charlie Sternberg
usually #1 Singles 100% · published 4.5
4.26
Max Sampson
usually #1 Doubles 57%, also #1 Singles 14% · published
4.19
Peter Rietgraf
usually #1 Doubles 83%, also #1 Singles 17% · published
4.08
Lukas Carlson
usually #2 Doubles 38%, also #1 Doubles 38% · published
4.07
Brady Lau
usually #3 Doubles 43%, also #1 Doubles 29% · published 4.5
4.03
Luke Jordan
usually #1 Singles 44%, also #2 Doubles 28% · published
3.94
John Bartholet
usually #2 Doubles 50%, also #3 Doubles 50% · published
3.85
Julian Bannach
usually #2 Doubles 33%, also #1 Doubles 33% · published
3.64
Mark Magistad
usually #3 Doubles 50%, also #1 Doubles 42% · published
Jonathan Onigkeit
usually #2 Doubles 50%, also #3 Doubles 25% · 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.

Peter Rietgraf + Brady Lau3253% games+8.2% vs expected
Peter Rietgraf + Lukas Carlson91847% games+4.3% vs expected
Brady Lau + Max Sampson3446% games−2.4% vs expected
Peter Rietgraf + Julian Bannach314 matchesnot enough data
Charlie Sternberg + Max Sampson404 matchesnot enough data
John Bartholet + Brady Lau044 matchesnot enough data
Peter Rietgraf + John Bartholet213 matchesnot enough data
Peter Rietgraf + Max Sampson123 matchesnot 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.

4.5
Charlie Sternberg
14W–4L career · 6 lines in 2025
1%93%5%
4.29
Max Sampson
11W–9L career · 7 lines in 2025
2%94%3%
4.26
Peter Rietgraf
23W–29L career · 6 lines in 2025
7%92%1%
4.19
Lukas Carlson
17W–37L career · 8 lines in 2025
28%72%<1%
4.08
4.5
Brady Lau
13W–14L career · 7 lines in 2025
30%70%<1%
4.07
Luke Jordan
35W–17L career · 18 lines in 2025
<1%41%59%
4.03
John Bartholet
4W–9L career · 6 lines in 2025
68%32%<1%
3.94
Julian Bannach
33W–18L career · 3 lines in 2025
<1%88%12%
3.85
Mark Magistad
13W–17L career · 12 lines in 2025
14%86%<1%
3.64
Jonathan Onigkeit
2W–2L career · 4 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.