Product engineer, Radio nerd, Sailor. Build cool things and put them on the internet!
Table Mountain, Cape Town
Joined September 2008
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Fire fighting helicopters filling up next to Glencairn Expressway #SimonsTownFire
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Congratulations @KirstenGGR! I finally get to publish something I've been working on for a few weeks. Race posters for each finisher, published as they come in.
You can find high-resolution printable PDFs on the GGR Underground site
ggr.underground.co.za/#poste…
@ggr2022 #GGR2022
GGR Underground update: I've split the DTF Deltas for the main race and Chichester class so that it's easier to track the Kirsten vs Abhilash showdown!
See more at ggr.underground.co.za
#GGR2022 @ggr2022
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Some big GGR updates:
1. Leader Deltas is now "Leader DTF Deltas".
2. Added a DMG (Distance Made Good) table.
3. Chichester sailors now shown everywhere.
4. Speed and VMG graphs are ordered by DTF.
5. Four Hour Reporting.
See more: ggr.underground.co.za
@ggr2022 #GGR2022
The delta table shows the Geodesic distance between the two sailors. Obviously not ideal when sailors are far off the Rhumb line. I'm working on a little something to address this as we race to the finish. Hopefully it'll be live by the end of today.
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🇿🇦 @KirstenGGR just set a new record! Furthest 7 day distance of 1169.14nm, and she'll beat it again tonight.
An insane level of consistency, an average of 6.96kts every hour of every day, for a week!
Can she crack an average of 7? #GGR2022 @ggr2022
ggr.underground.co.za
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New #GGR2022 statistics / analysis feature! I've added a network-linked KML file so that you can view the race in Google Earth! (desktop or web).
This will automatically update in the background so no need to re-download.
ggr.underground.co.za/#kml
@ggr2022 Feedback welcome!
🇿🇦 @KirstenGGR has taken 125nm out of Simon's lead in the last 24 hours. It'll probably be more by the time Simon gets back up to speed. @ggr2022 #GGR2022 See more at ggr.underground.co.za
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Incredible! @KirstenGGR Just set another two records:
🇿🇦 9.71kts AVG speed over 4 hours! Perfect timing because I've just modified my graphing to max out at 10kts. #GGR2022 @ggr2022
🇿🇦 She also set a new 24 hour distance record of 202nm!
See more at ggr.underground.co.za
It is indeed a record. I need to recalibrate my graphs as they currently max out at 9kts, but if you hover over you'll see the actual speed. Check the records on ggr.underground.co.za
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Kirsten roughly an hour away. Tapio unhelpfully drifting North at roughly 1kt. He'll have spent a little over 24 hours in his raft but his spirits are high. #GGR2022
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ETA Calculations Update:
* Some updates to increase accuracy.
* Now showing the ETA in your local timezone so that you know when to start watching YouTube without doing maths 🤓
🇿🇦 Go Kirsten!
🇫🇮 Go Tapio!
🇮🇪 Go Pat!
@ggr2022 #GGR2022
See more at ggr.underground.co.za/#etas
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ETAs are very tricksy to calculate but enough people asked so here you go. #GGR2022 @ggr2022
This calculates an appropriate average VMG based on history & distance to waypoint, and then calculates the ETA. No weather data is considered!
See more ggr.underground.co.za/#etas
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Correction to my earlier post: Kirsten's VMG is a full kt more than Tapio & conditions favour her route although dropping overnight. My guess would be her getting to the gate at around midday local with Tapio about 20 miles behind. #GGR2022 @ggr2022 ggr.underground.co.za
Kirsten is only 4 miles behind Tapio and is seeing better VMGs, so my money is only Kirsten into Cape Town second with Tapio a few hours later. #GGR2022 @ggr2022
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I'm finally tracking VMG on my #GGR2022 stats site. Shown below is the Speed vs VMG for the last 7 days.
New Records:
🇮🇳 Abhilash set a new 4 hour speed average of 7.79 kts yesterday.
🇮🇳 Abhilash set a new 7 day record with 1117.42nm (15 Oct)
ggr.underground.co.za @ggr2022
We're officially past the 20% mark of the #GGR2022!
I had to rewrite some code to properly handle the ever-changing "leader" so now the "Leader Deltas" make sense again.
Thinking about how to better visualise deltas in VMG over time...
ggr.underground.co.za @ggr2022
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