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SF MARATHON 2025

Brian Byun

Bib: 4167โ€ขMโ€ขAge: 59

Loa Altos, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6545
Gender (Male)
#0 / 4641
Masters (Masters Men)
#0 / 1347
Division (M55-59)
#0 / 180
Race Day Weather
56ยฐ/46ยฐF
overcast clouds

โฑ๏ธ Race Timeline

Start
0:00:00
Race begins
1.81 Miles
19:04
Rank: #5114
Start โ†’ 1.81 Miles
19:04 | 10:32/mi
5.55 Miles
57:41
Rank: #4609 (+505)
1.81 Miles โ†’ 5.55 Miles
38:37 | 10:20/mi
6.52 Miles
1:08:07
Rank: #4528 (+81)
5.55 Miles โ†’ 6.52 Miles
10:26 | 10:45/mi
10.87 Miles
1:54:45
Rank: #4507 (+21)
6.52 Miles โ†’ 10.87 Miles
46:38 | 10:43/mi
Garmin Hill Challengeยท 11.38 mi
2:02:05
Rank: #4523 (-16)
10.87 Miles โ†’ Garmin Hill Challenge
7:20 | 14:24/mi
14.95 Miles
2:37:41
Rank: #4587 (-64)
Garmin Hill Challenge โ†’ 14.95 Miles
35:36 | 9:58/mi
18 Miles
3:17:15
Rank: #4589 (-2)
14.95 Miles โ†’ 18 Miles
39:34 | 12:58/mi
25 Miles
4:49:33
Rank: #4879 (-290)
18 Miles โ†’ 25 Miles
1:32:18 | 13:11/mi
Finishยท 26.22 mi
5:06:13
Rank: #4944 (-65)
25 Miles โ†’ Finish
16:40 | 13:41/mi

The Course

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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81 Miles
1.81 mi05:54:4319:0410:3219:04
10:32
-
5.55 Miles
5.55 mi06:33:2057:4110:2438:37
10:20
-0:12
6.52 Miles
6.52 mi06:43:461:08:0710:2710:26
10:45
+0:25
10.87 Miles
10.87 mi07:30:241:54:4510:3346:38
10:43
-0:02
Garmin Hill Challenge
11.38 mi07:37:442:02:0510:447:20
14:24
+3:41
14.95 Miles
14.95 mi08:13:202:37:4110:3335:36
9:58
-4:26
18 Miles
18.00 mi08:52:543:17:1510:5839:34
12:58
+3:00
25 Miles
25.00 mi10:25:124:49:3311:351:32:18
13:11
+0:13
Finish
26.22 mi10:41:525:06:1311:4116:40
13:41
+0:30

Checkpoints & Pacing

๐Ÿ“ˆPace 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

9:58 /mi

Average Pace

11:41 /mi

Slowest Pace

14:24 /mi

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Fastest
Middle
Slowest
Average

๐Ÿ“ŠSegments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:30:21

49% of race

Time at Slower Pace

2:35:52

51% of race

Average Pace: 11:41 /mi

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Faster pace (< avg)
Steady pace (โ‰ˆ avg)
Slower pace (> avg)

๐ŸŽจHeatmap

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.

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

Click or hover over segments to see details

โœจSparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
1.81 Miles
1.81 mi05:54:4319:0410:3219:04
10:32
#5114
5.55 Miles
5.55 mi06:33:2057:4110:2438:37
10:20
#4609
6.52 Miles
6.52 mi06:43:461:08:0710:2710:26
10:45
#4528
10.87 Miles
10.87 mi07:30:241:54:4510:3346:38
10:43
#4507
Garmin Hill Challenge
11.38 mi07:37:442:02:0510:447:20
14:24
#4523
14.95 Miles
14.95 mi08:13:202:37:4110:3335:36
9:58
#4587
18 Miles
18.00 mi08:52:543:17:1510:5839:34
12:58
#4589
25 Miles
25.00 mi10:25:124:49:3311:351:32:18
13:11
#4879
Finish
26.22 mi10:41:525:06:1311:4116:40
13:41
#4944
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
1.81 Miles1.81 mi1.81 mi511438311425114(Top 78%)3831(Top 83%)142(Top 79%)
5.55 Miles5.55 mi3.74 mi4609+5053527+304124+184444(Top 68%)3419(Top 74%)117(Top 65%)
6.52 Miles6.52 mi0.97 mi4528+813477+50119+54190(Top 64%)3261(Top 70%)94(Top 52%)
10.87 Miles10.87 mi4.35 mi4507+213472+5114+54566(Top 70%)3500(Top 75%)113(Top 63%)
Garmin Hill Challenge11.38 mi0.51 mi4523-163480-8115-14814(Top 74%)3644(Top 79%)117(Top 65%)
14.95 Miles14.95 mi3.57 mi4587-643520-40117-24758(Top 73%)3596(Top 77%)116(Top 64%)
18 Miles18.00 mi3.05 mi4589-23505+15116+14978(Top 76%)3641(Top 78%)119(Top 66%)
25 Miles25.00 mi7.00 mi4879-2903638-133120-45224(Top 80%)3757(Top 81%)128(Top 71%)
Finish26.22 mi1.22 mi4944-653680-42122-25645(Top 86%)4022(Top 87%)134(Top 74%)

Segment Performance Analysis

Start โ†’ 1.81 Miles

0.0 - 1.8 mi

Top 78%
ร—1human
+6ft-10ft

Overall

5114

Males

3831

M55-59

143

1.81 Milesโ†’5.55 Miles

1.8 - 5.5 mi

Top 68%
ร—6stories
+97ft-86ft

Overall

4444

Males

3419

M55-59

118

5.55 Milesโ†’6.52 Miles

5.5 - 6.5 mi

Top 64%
ร—15stories
+178ft-5ft

Overall

4190

Males

3261

M55-59

95

6.52 Milesโ†’10.87 Miles

6.5 - 10.9 mi

Top 70%
ร—20stories
+201ft-318ft

Overall

4566

Males

3500

M55-59

114

10.87 Milesโ†’Garmin Hill Challenge

10.9 - 11.4 mi

Top 74%
ร—11stories
+134ft-79ft

Overall

4814

Males

3644

M55-59

118

Garmin Hill Challengeโ†’14.95 Miles

11.4 - 14.9 mi

Top 73%
ร—17stories
+251ft-225ft

Overall

4758

Males

3596

M55-59

116

14.95 Milesโ†’18 Miles

14.9 - 18.0 mi

Top 76%
ร—12stories
+165ft-60ft

Overall

4978

Males

3641

M55-59

120

18 Milesโ†’25 Miles

18.0 - 25.0 mi

Top 80%
ร—22stories
+142ft-378ft

Overall

5224

Males

3757

M55-59

128

25 Milesโ†’Finish

25.0 - 26.2 mi

Top 86%
~flat
+2ft-0ft

Overall

5645

Males

4022

M55-59

134

Passing Analysis

Category:
Athletes Passed
1085*
Passed By
915
Net Change
+170
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start โ†’ 1.81 Miles----#5114
1.81 Miles โ†’ 5.55 Miles54035+505#5114#4609
5.55 Miles โ†’ 6.52 Miles9514+81#4609#4528
6.52 Miles โ†’ 10.87 Miles144*123+21#4528#4507
10.87 Miles โ†’ Garmin Hill Challenge3753-16#4507#4523
Garmin Hill Challenge โ†’ 14.95 Miles52*116-64#4523#4587
14.95 Miles โ†’ 18 Miles108*110-2#4587#4589
18 Miles โ†’ 25 Miles104*394-290#4589#4879
25 Miles โ†’ Finish5*70-65#4879#4944
TOTALS1085*915+170

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

๐Ÿ“Š

Passing Visuals

Category:

๐Ÿ“ˆPosition Graph

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๐ŸŽจHeatmap Timeline

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๐Ÿ”„Passing Circle

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๐ŸŒŠPosition Flow

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๐ŸƒRace Lanes

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Public Race Data

The San Francisco Marathon

The San Francisco Marathon