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2024 Summer Series

Table of contents

This page is "under construction", so things could be changed.

Hi Folks! It has been great to see everyone at BAOC events over the last several months. A big thanks to all the volunteers and participants that have made these events successful.

As usual, over the late spring and summer, BAOC will be switching to predominantly shorter format events on typically more urban maps. This is the 2024 BAOC Summer Series!

Each Summer Series event will typically have a beginner (White) course, a "Short" intermediate course, and a "Long" intermediate course. (The "Short" and "Long" courses will have a difficulty of about a regular Orange course, or whatever technical level the map can support.) There will be six Summer Series events, as listed below. And the whole Series will run as an overall competition. In actual fact, there will be two separate competitions at each event​—​a "Short" and a "Long"​—​just like last year. (Athletes can score points on only the first of either the "Short" or the "Long" course they run at each event.)

The exact scoring will be explained in detail later, but basically participants' results are weighted by age and gender (see the explanation from last year below, which is subject to change for this year). And the best four scores from the six events for each participant will be considered for the final standings. In this fashion, all participants have a chance at the top spot​—​and missing an event or two will not spoil your chances. Points are also awarded for the Course Setter and Event Director of each event (since they cannot participate).

Note that, like last year, a special "Series Discount Package" is offered, providing a discount for registering in advance for the entire Series​—​see the details below. (Registering for the Discount Package does not require that you attend every event in the Series.)

As ever, these events are run entirely thanks to the efforts of volunteers. So please reach out to the individual Event Directors, or your Regional Event Coordinators, for volunteer opportunities at these events. And a huge thank-you to everyone who has already volunteered!

Looking forward to seeing you out there! Your BAOC Regional Event Coordinators:

The Schedule

The Summer Series schedule is below. Click on an "Event" link to go to the event webpage. After each event, you can click on results links to see the event results.

Please note that the permits are pending for some of these events. That means, some of the dates and locations are subject to change. Keep an eye on this page for the latest news, but we will do our very best to stick to this schedule.

Note to Beginners

BAOC welcomes beginners at events, with (free) "clinics" that introduce orienteering, and with "beginner" courses. We hope you will come to one or more of the Summer Series events (there is no requirement to attend all the events), and/or to our "regular" events listed in the Schedule.

Summer Series Discount Package

Like last year, there is a Summer Series Discount Package again this year. The package deal — which is available only for BAOC members — will cover the six events in the Summer Series.

Note: If you are not a BAOC member, you can join the club and purchase the Discount Package for less than the adult non-member cost of four individual events. (See below for details.)

The package price is $60 for adults, $20 for juniors (ages 8–20), for all six (or fewer) events​—​thus presenting a great discount, even if you don't attend all of the events.

Here is the "fine print" for the Summer Series Discount Package:

You can sign up for the Summer Series Discount Package here (

You can see who has already signed up here (

Note: If you are not a BAOC member (and thus not eligible for the package), or you do not want to register for the Discount Package, each event will also have its own entry form. To sign up for a single event, register online before the event or register at the event. (If registering at the event, to save some time at the event, you can download and print the entry form linked on the event's webpage, and bring the form to Registration at the event.)

Important Note to All Participants

Everyone must observe out-of-bounds areas indicated on the maps. Please note, in particular, that olive-green areas are out of bounds.

Failure to stay out of out-of-bounds areas could jeopardize our ability to get permission to hold future events at the venue, as well as being unfair to those participants who go around the areas.

Some of the events will use maps with ISSprOM (International Standard for Sprint Orienteering Maps) symbols, which indicate impassible features like buildings, fences, vegetation, and walls. Note that the rules forbid crossing (including reaching over or through) any feature shown on the map as "impassible", even if it's physically possible to cross (or reach over or through).

A sheet showing all the symbols used on Sprint Orienteering maps is available as this file (1MB PDF).
The latest edition of the International Specification for Sprint Orienteering Maps (ISSprOM 2019-2) is in this document (930KB PDF). (The identical file on the IOF website is much larger.)
These related IOF documents are available: ISSprOM - Guidelines For Complex Urban Structures (2.6MB PDF) and What Has Changed In ISSprOM 2019 (764KB PDF).
Some of the event venues include multilevel situations, which can be hard to interpret from a two-dimensional map. ISSprOM includes special symbols for that purpose, which can be seen in this explanation.

The Series Competition

The BAOC Summer Series will be split into two competitions, a series of Short courses and a series Long courses, both of which will be "handicapped" by age and gender​—​that is, using the same system we used in 2017–2019, 2022, and 2023.

The six planned Summer Series events (see above) will be set on some of our best "urban" maps​—​campuses, parks, etc.​—​which make for better events during the summer. There will, in fact, be effectively two Summer Series​—​a Short-distance version, and a Long-distance version. We have made this decision acknowledging the diversity of the athletes we have at BAOC events, and hopefully everyone will find a distance they are comfortable with. Both Short and Long will be basically "the most technically challenging courses the map will support". The Short courses will not be "easier", they are simply shorter.

Important Note: Points earned in one Summer Series (e.g., Short) are not valid in the other series (e.g., Long). And each competitor will ultimately be ranked based on the points from their best four of the six events. Thus the intention is that each athlete will choose to compete in either the Short or the Long competition, and (mostly) stick to that length throughout the summer. Of course, everyone is welcome to run any course they wish at each event, but to maximize your chance of a higher overall position, you should try to stick to one length or the other throughout the summer. Furthermore, while you are always welcome to run two (or three!) courses at any event, you will be eligible to earn points only on the first course you run at an event (which means no points if you run a ranking course after the Beginner [White] course).

Note that, in addition to the Ranking-Short course and the Ranking-Long course, each event will have a non-ranking White course, and perhaps a second non-ranking course. Further details for each event will be released closer to the date (i.e., on the webpage for the event).

As in previous years, the Summer Series results are weighted ("handicapped") by age and gender, to create something closer to a level playing field for all athletes. The participants' age and gender information will be obtained from past BAOC events where this information was used. Failing that, the OSUA rankings website ( will be referenced. (If we do not have access to the information, you will need to tell us your birth year [just the year, not the date] and gender, so we can give each athlete a fair representation in the points.)

If you are a relative newcomer to BAOC events, and you know you are not listed on that OUSA website, you can help us out by sending your gender and year of birth (please do not send your complete date of birth​—​we have no interest in that). You can send the information to Graham Brew (), or give it to Registration at your first event. If we don't have your information, we will try to reach you to get the information. If we ultimately fail to determine an athlete's age and gender, they will be assumed to be a 21-year-old male. Hence, it is in each athlete's best interest to give us accurate information.

The Series rankings will be released (to the BayONet ( and on the BAOC website) as quickly as possible after each event, although please allow a few days for the various processing to take place.

As in previous years, credit will be given for Course Setting and Event Directing (so contact us now if you would like to earn some "free" points this way!).

If there are any questions or comments on any of the above, you can contact Graham Brew (). However, questions about specific events, locations, etc. are best addressed to the Event Director for each event.

Very best of luck to all competitors, and we look forward to seeing you out there!

Graham Brew, BAOC Event Coordinator, and the entire BAOC Summer Series Team

Scoring and Awards

Note: It's not likely to happen, but these details are subject to change.

To make things a little more interesting, participants can accumulate points throughout the Series based on their results. Some of the best minds in the world's greatest database companies, and in the nation's finest research labs have deliberated carefully, and arrived at a scoring system for the Summer Series. (It's the same system that was used in 2017–2019, 2022, and 2023, crafted by Fran├žois and Dennis.)

The scoring system for the Summer Series will combine all participants into two categories by making adjustments, based on age and gender, to each person's performance. The person with the best adjusted performance in a given race will be awarded 1000 points. Everyone else will be awarded points in proportion to how their own adjusted performance compares to that of the person given 1000 points.

At each event in the Series there will be two identified ranking courses, which will be used for scoring. The other course(s) offered at the event will have no affect on the Series scoring.

Here are the details.

This means it is possible for someone who finishes with the slowest legal time in a race to still have the highest point score for the day. So, don't give up!

Now that you've studied the methodology for scoring in minute detail, perhaps an example is in order.

Suppose there is an event with just three people: a 45-year-old male who we'll call "F"; a 70-year-old male called "D", and a 25-year-old female called "T". (Amazingly, their ages haven't changed since the first Summer Series in 2017! 😉) Suppose their times on the course are as follows:
F   45:51
T   49:30
D   57:20
Given their ages and genders, their reference times are as follows.
(The USATF tables that we are using for reference times [and related documentation] can be found here ( We're using the files MaleRoadStd2020.xlsx ( and FemaleRoadStd2020.xlsx ( in the "2020 Files (" folder. In those files, we're using the "10 km" column on the "AgeStdHMS" tab.)
F   28:30
T   29:43
D   35:45
Dividing the actual course times by the reference times gives these adjusted performance ratios for the course:
F   1.60877
T   1.66573
D   1.60373
So, with the lowest adjusted performance ratio, D is the leader (despite having the slowest time) and gets 1000 points. To get the points for the others, divide their ratios into D's and multiply by 1000, and you get F with 997 points and T with 963.

Conclusion: If you want to win in the Summer Series, either (a) get fast, or (b) get old fast.

By popular demand, final standings will be based on each person's four best scores in the six-event Series.

For the record, note that Graham Brew is the Official Scorer, so all queries and compliments should go to him. Complaints should be sent to (Good luck with that!).

We need to know everyone's age in order to make these calculations. As usual, your orienteering age is your age at the end of the calendar year. So what we really want is your year of birth, not your actual birth date. There will be sign-up sheets at either Registration or the E-punch download table at each event. Please write down your name and year of birth if we don't already have them.

Some "fine print":

  1. Everyone who has a valid finish for that day's full ranking course will be awarded points (except group entries will not earn points). However, to be eligible for the cumulative awards, you must be a BAOC member in good standing as of the date of the final event of the Series.
  2. If you don't tell us your year of birth, we will assume you are a 21-year-old male. If you like that idea better than you like getting more points, well, that's up to you.
  3. If we find out your age after some of the point calculations have been made, we will try to go back and recalculate your point scores for the earlier events. In no case, though, will such retroactive point adjustments exceed 1000 points for a given race. (In other words, if you don't tell us your year of birth in time, and you should have been the leader that day, you won't quite get all the credit you might have gotten.)
  4. Course Setters for events in the Series will be given points for their own event equal to their best other point score in the Series. Event Directors (some of whom may be able to run in their own event) will be given the higher of (a) their actual score in the event or (b) their best other point score in the Series.

Series Results

The final Series results will be posted here after the last event. The results for each event, and the Series standings through each event, will be available on the results page for each event (links will be added to the Schedule above).