Teams

SGV Silver Servers-Schiffman-Scholl Cyn/SA12

2025 Adult Division - 55 & Over - San Gabriel Valley · SGV - Men 6.0

7 players · average NTRP 3.00 / SO.CALIFORNIA

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 →
Schedule7 played
2025-07-19vs SoCal/Flores/55&Over6.0MLost 02
L#2 DoublesMarc Guggenheim / Tony Ruys de Perez vs Carlos Macdonald / Fredrick Hoang1-6, 1-6
L#3 DoublesDan Schiffman / Juan Mireles vs Ross Allen / Lionel Ochoa1-6, 0-6
W#1 DoublesByron Lee / Kasra Soufi vs Glen Waldow / Gabriel Cardoza6-4, 6-4
W#2 DoublesDavid Adelstein / Tony Ruys de Perez vs Simon Chow / Edward Wong7-6, 6-3
W#1 DoublesByron Lee / Kasra Soufi vs David Stein / Oai Nguy6-4, 2-6, 1-0
L#2 DoublesJohn Wong / Juan Mireles vs Paul Honda / Shih-Ching Wang6-1, 3-6, 0-1
W#3 DoublesDan Schiffman / Tony Ruys de Perez vs Rudy Bituin / Jaime Bejarano6-4, 6-3
L#2 DoublesTony Ruys de Perez / Juan Mireles vs Dan Alvarez / Warren Biederstadt2-6, 1-6
L#3 DoublesMarc Guggenheim / Dan Schiffman vs Glen Waldow / Gary Price4-6, 2-6
L#1 DoublesMarc Guggenheim / Juan Mireles vs Jorge Encinas / Adam Li Lin3-6, 7-5, 0-1
L#2 DoublesDavid Adelstein / Kasra Soufi vs Mark Mendoza / Oai Nguy4-6, 5-7
W#3 DoublesByron Lee / Tony Ruys de Perez vs Rudy Bituin / Sudheer Maharana7-5, 6-0
L#2 DoublesDan Schiffman / Marc Guggenheim vs Warren Biederstadt / Gary Price6-1, 3-6, 0-1
L#3 DoublesJuan Mireles / Michael Chu vs Dan Alvarez / Edward Wong2-6, 1-6
W#1 DoublesDavid Adelstein / Byron Lee vs Rudy Bituin / Paul Hubler6-1, 6-3
L#2 DoublesJuan Mireles / Tony Ruys de Perez vs David Stein / Oai Nguy3-6, 1-6
W#3 DoublesKasra Soufi / Dan Schiffman vs Adam Li Lin / Shih-Ching Wang3-6, 6-4, 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 SGV - Men 6.0 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 2.67 estimated across 6 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.

2.87
Kasra Soufi
usually #1 Doubles 50%, also #2 Doubles 25% · published
2.85
David Adelstein
usually #2 Doubles 67%, also #1 Doubles 33% · published 3
2.72
Tony Ruys de Perez
usually #2 Doubles 67%, also #3 Doubles 33% · published
2.58
Marc Guggenheim
usually #2 Doubles 50%, also #1 Doubles 25% · published
2.56
Dan Schiffman
usually #3 Doubles 80%, also #2 Doubles 20% · published 3
2.40
Michael Chu
usually #3 Doubles 100% · published
Juan Mireles
usually #2 Doubles 50%, 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.

Dan Schiffman + Kasra Soufi3447% games−9.2% vs expected
Dan Schiffman + Tony Ruys de Perez2440% gamesnot enough data
Tony Ruys de Perez + Juan Mireles134 matchesnot enough data
Dan Schiffman + Marc Guggenheim033 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.

Kasra Soufi
13W–17L career · 4 lines in 2025
<1%83%17%
2.87
3
David Adelstein
14W–8L career · 3 lines in 2025
<1%87%12%
2.85
Tony Ruys de Perez
10W–15L career · 6 lines in 2025
4%94%2%
2.72
Marc Guggenheim
4W–15L career · 4 lines in 2025
26%74%<1%
2.58
3
Dan Schiffman
10W–26L career · 5 lines in 2025
32%67%<1%
2.56
Michael Chu
2W–14L career · 1 line in 2025
77%23%<1%
2.40
Juan Mireles
4W–11L career · 6 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.