Perfect Brackets

Competition
#1

I’ve always wondered how many perfect brackets there have been: 1 beats 8, 2 beats 7, 3 beats 6, 4 beats 5, etc with them all going 2-0. Thus no blue alliance wins. I honestly don’t know how to do this with thebluealliance api, and the only one I know of is 2017 Michigan Howell.

1 Like
#3

There have been exactly 0 in the history of NE First (since it became a district I mean)

#4

Never mind I didn’t read the question all the way, I don’t know of any where the higher alliance won 2-0 each time.

#5

Take a look at the /event/{event_key}/alliances endpoint.

#6

Cough, cough, many 2015 events, cough, cough

2 Likes
#7

I was bored and so whipped up some code, and here’s the list from years 2017-2019. It’s intriguing to me that 2018 had so many:

List of events

2017mihow
2017onto1
2018bc
2018crc
2018inmis
2018mesh
2018nysu
2018onosh
2018vabla
2018wvrox
2019gacol
2019onham

Here’s my code (not sure how to attach it properly formatted, but I’m having a go at it), it’s hopefully documented enough so even non-python folks can kinda follow along, though to execute it yourself, you gotta get an API key

Code 
import tbapy

#Sets up the API, get your own auth key from TBA
tba = tbapy.TBA("seeeeeecret")

def check_chalk(event):
    #First we want to collect the list of matches from the API
    matches = tba.event_matches(event, keys=True)

    #Then find just the elims matches
    try:
        f_and_qf = matches[:matches.index(event + "_qm1")]
        sf = matches[matches.index(event + "_sf1m1"):]
    # For events that haven't been played, we don't want to break it with an empty match list
    except ValueError:
        #print(event + " has not been played")
        return False

    elims = f_and_qf + sf

    #A perfect elims round has only 14 matches, 8 qf, 4 sf, 2 f
    #If it has more, we know it wasn't chalk
    if len(elims) != 14:
        return False

    all_red_wins = True
    for match in elims:
        #Pretty self-explanatory, checks if all matches won by red alliance
        if tba.match(match)['winning_alliance'] != "red":
            all_red_wins = False

    return all_red_wins


year_list = ['2017', '2018', '2019']

for year in year_list:
    #Pulls all events from the year from TBA, including weird ones but whatever
    event_list = tba.events(year, keys=True)

    for event in event_list:
        #Every Event's Result
        #print(event, check_chalk(event))

        #Just the chalk ones
        if check_chalk(event):
            print(event)
#8

2018 probably because of scale autos in high seeds just bulldozing opponents.

2 Likes
#9

Thank you very much, I’ve always had trouble with the API

#10

I dont know if you count semi finals and finals as well, but in Israel 2014 the QF ended just like you described: https://www.thebluealliance.com/event/2014ista

#11

I like to see the entire competition, but thanks for that

#12

What I’d consider in terms of 2015, would be moving onto the semis is 1,2,3,4 moving onto the finals 1,2 and 1 winning the finals all of those in order

#13

I would put 2016 Curie in there, but it’s 3 matches short.

However, the caveat: That’s the one and only perfect reverse bracket (lower seed beats higher seed) to take place in FRC. The higher seed won exactly 3 matches–2 QFX-1, 1 SFX-1–as the #8 seed took the division.

1 Like
#14

Wow, that was the last Howell event ever held.
Don’t let events have perfect brackets or they might die.

1 Like
#15

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