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SF MARATHON 2023

Brian Byun

Bib: 7410•M•Age: 57

Los Altos, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 4888
Gender (Male)
#0 / 3570
Masters (Masters Men)
#0 / 1128
Division (M55-59)
#0 / 134
Race Day Weather
69°/59°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2.2 Miles
17:44
Rank: #2086
Start → 2.2 Miles
17:44 | 8:04/mi
5.7 Miles
52:56
Rank: #2263 (-177)
2.2 Miles → 5.7 Miles
35:12 | 10:04/mi
6.43 Miles
1:02:49
Rank: #2297 (-34)
5.7 Miles → 6.43 Miles
9:53 | 13:32/mi
10.92 Miles
1:44:37
Rank: #2358 (-61)
6.43 Miles → 10.92 Miles
41:48 | 9:19/mi
Garmin Hill Challenge· 11.42 mi
1:51:52
Rank: #2453 (-95)
10.92 Miles → Garmin Hill Challenge
7:15 | 14:30/mi
14.95 Miles
2:25:01
Rank: #2585 (-132)
Garmin Hill Challenge → 14.95 Miles
33:09 | 9:23/mi
18 Miles
3:03:08
Rank: #2728 (-143)
14.95 Miles → 18 Miles
38:07 | 12:30/mi
24 Miles
4:18:51
Rank: #3046 (-318)
18 Miles → 24 Miles
1:15:43 | 12:37/mi
Finish· 26.22 mi
4:44:09
Rank: #3048 (-2)
24 Miles → Finish
25:18 | 11:24/mi

Course Map & Elevation

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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.2 Miles
2.20 mi05:48:0817:448:0417:44
8:04
-
5.7 Miles
5.70 mi06:23:2052:569:1735:12
10:04
+2:00
6.43 Miles
6.43 mi06:33:131:02:499:469:53
13:32
+3:28
10.92 Miles
10.92 mi07:15:011:44:379:3541:48
9:19
-4:13
Garmin Hill Challenge
11.42 mi07:22:161:51:529:487:15
14:30
+5:11
14.95 Miles
14.95 mi07:55:252:25:019:4233:09
9:23
-5:07
18 Miles
18.00 mi08:33:323:03:0810:1038:07
12:30
+3:07
24 Miles
24.00 mi09:49:154:18:5110:471:15:43
12:37
+0:07
Finish
26.22 mi10:14:334:44:0910:5125:18
11:24
-1:13

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:04 /mi

Average Pace

10:51 /mi

Slowest Pace

14:30 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:07:53

45% of race

Time at Steady Pace

25:18

9% of race

Time at Slower Pace

2:10:58

46% of race

Average Pace: 10:50 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2.2 Miles
2.20 mi05:48:0817:448:0417:44
8:04
#2086
5.7 Miles
5.70 mi06:23:2052:569:1735:12
10:04
#2263
6.43 Miles
6.43 mi06:33:131:02:499:469:53
13:32
#2297
10.92 Miles
10.92 mi07:15:011:44:379:3541:48
9:19
#2358
Garmin Hill Challenge
11.42 mi07:22:161:51:529:487:15
14:30
#2453
14.95 Miles
14.95 mi07:55:252:25:019:4233:09
9:23
#2585
18 Miles
18.00 mi08:33:323:03:0810:1038:07
12:30
#2728
24 Miles
24.00 mi09:49:154:18:5110:471:15:43
12:37
#3046
Finish
26.22 mi10:14:334:44:0910:5125:18
11:24
#3048
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
2.2 Miles2.20 mi2.20 mi20861739512086(Top 43%)1739(Top 49%)51(Top 38%)
5.7 Miles5.70 mi3.50 mi2263-1771882-14357-62338(Top 48%)1942(Top 54%)60(Top 45%)
6.43 Miles6.43 mi0.73 mi2297-341909-2756+12613(Top 53%)2139(Top 60%)60(Top 45%)
10.92 Miles10.92 mi4.49 mi2358-611965-5657-12534(Top 52%)2082(Top 58%)58(Top 43%)
Garmin Hill Challenge11.42 mi0.50 mi2453-952026-6159-23620(Top 74%)2823(Top 79%)82(Top 61%)
14.95 Miles14.95 mi3.53 mi2585-1322115-8961-22989(Top 61%)2374(Top 66%)71(Top 53%)
18 Miles18.00 mi3.05 mi2728-1432211-9663-23216(Top 66%)2493(Top 70%)78(Top 58%)
24 Miles24.00 mi6.00 mi3046-3182394-18375-123636(Top 74%)2716(Top 76%)93(Top 69%)
Finish26.22 mi2.22 mi3048-22385+974+13056(Top 63%)2305(Top 65%)74(Top 55%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 43%
×1human
+8ft-12ft

Overall

2086

Males

1739

M55-59

51

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 48%
×6stories
+92ft-87ft

Overall

2338

Males

1942

M55-59

60

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 53%
×11stories
+137ft-3ft

Overall

2613

Males

2139

M55-59

60

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 52%
×21stories
+225ft-318ft

Overall

2534

Males

2082

M55-59

58

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 74%
×11stories
+134ft-123ft

Overall

3620

Males

2823

M55-59

82

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 61%
×16stories
+234ft-225ft

Overall

2989

Males

2374

M55-59

71

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 66%
×12stories
+165ft-60ft

Overall

3216

Males

2493

M55-59

78

18 Miles→24 Miles

18.0 - 24.0 mi

Top 74%
×21stories
+142ft-377ft

Overall

3636

Males

2716

M55-59

93

24 Miles→Finish

24.0 - 26.2 mi

Top 63%
~flat
+2ft-2ft

Overall

3056

Males

2305

M55-59

74

Passing Analysis

Category:
Athletes Passed
295*
Passed By
1257
Net Change
-962
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#2086
2.2 Miles → 5.7 Miles68*245-177#2086#2263
5.7 Miles → 6.43 Miles2559-34#2263#2297
6.43 Miles → 10.92 Miles53*114-61#2297#2358
10.92 Miles → Garmin Hill Challenge5100-95#2358#2453
Garmin Hill Challenge → 14.95 Miles19151-132#2453#2585
14.95 Miles → 18 Miles44*187-143#2585#2728
18 Miles → 24 Miles46*364-318#2728#3046
24 Miles → Finish35*37-2#3046#3048
TOTALS295*1257-962

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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