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SF MARATHON 1ST HALF 2026

Byungjun Kim

Bib: 16936•M•Age: 46

Menlo Park, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Top 39%
Gender (Male)
#0 / 3619
Top 49%
Masters (Masters Men)
#0 / 1030
Top 39%
Division (M45-49)
#0 / 220
Top 39%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:09/mi
20:19
→ flat
4M
10:00/mi
40:19
↑ 67↓ 69
6M
9:54/mi
1:00:08
↑ 1231.1%
8M
9:51/mi
1:19:49
↑ 166↓ 531.1%
9.6M
9:51/mi
1:35:34
↑ 68↓ 1931.5%
10M
18:31/mi
1:42:58
↓ 241.1%
10.5M
5:06/mi
1:45:31
↓ 732.7%
12M
13:13/mi
2:05:21
↑ 2803.2%
Finish· 13.11 mi
9:39/mi
2:16:03
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:00:08
Pace10:01 /mi
2nd Half
Distance7.11 mi
Time1:15:55
Pace10:41 /mi
📊Positive Split: 26.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:58:3520:1910:0920:19
10:09
-
4M
4.00 mi07:18:3540:1910:0520:00
10:00
-0:09
6M
6.00 mi07:38:241:00:0810:0119:49
9:54
-0:06
8M
8.00 mi07:58:051:19:499:5919:41
9:51
-0:03
9.6M
9.60 mi08:13:501:35:349:5715:45
9:51
0:00
10M
10.00 mi08:21:141:42:5810:187:24
18:31
+8:40
10.5M
10.50 mi08:23:471:45:3110:032:33
5:06
-13:25
12M
12.00 mi08:43:372:05:2110:2719:50
13:13
+8:07
Finish
13.11 mi08:54:192:16:0310:2310:42
9:39
-3:34

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

5:06 /mi

Average Pace

10:23 /mi

Slowest Pace

18:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33

2% of race

Time at Steady Pace

1:46:16

78% of race

Time at Slower Pace

27:14

20% of race

Average Pace: 10:23 /mi

Loading chart...
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.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi06:58:3520:1910:0920:19
10:09
#3284
4M
4.00 mi07:18:3540:1910:0520:00
10:00
#2978
6M
6.00 mi07:38:241:00:0810:0119:49
9:54
#2792
8M
8.00 mi07:58:051:19:499:5919:41
9:51
#2630
9.6M
9.60 mi08:13:501:35:349:5715:45
9:51
#2785
10M
10.00 mi08:21:141:42:5810:187:24
18:31
#2735
10.5M
10.50 mi08:23:471:45:3110:032:33
5:06
#2749
12M
12.00 mi08:43:372:05:2110:2719:50
13:13
#2580
Finish
13.11 mi08:54:192:16:0310:2310:42
9:39
#2547
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 42%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:57

Segment Time

11:04/mi

Pace

0.90 mi

Distance

Overall

2768

Men

1871

Division

93

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2M2.00 mi2.00 mi328421861182130(Top 32%)1498(Top 41%)78(Top 35%)
4M4.00 mi2.00 mi2978+3062044+142114+42795(Top 43%)1934(Top 53%)101(Top 46%)
6M6.00 mi2.00 mi2792+1861931+113103+112543(Top 39%)1786(Top 49%)92(Top 42%)
8M8.00 mi2.00 mi2630+1621857+7494+92208(Top 34%)1622(Top 45%)84(Top 38%)
9.6M9.60 mi1.60 mi2785-1551919-62100-63808(Top 58%)2306(Top 64%)121(Top 55%)
10M10.00 mi0.40 mi2735+501889+3098+22697(Top 41%)1826(Top 50%)94(Top 43%)
10.5M10.50 mi0.50 mi2749-141898-9983369(Top 51%)2205(Top 61%)116(Top 53%)
12M12.00 mi1.50 mi2580+1691791+10785+132130(Top 32%)1498(Top 41%)78(Top 35%)
Finish13.11 mi1.11 mi2547+331772+19852446(Top 37%)1674(Top 46%)85(Top 39%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 32%
~flat
+5ft-3ft

Overall

2130

Males

1498

M45-49

78

2M→4M

2.0 - 4.0 mi

Top 43%
×4story building
+67ft-69ft

Overall

2795

Males

1934

M45-49

101

4M→6M

4.0 - 6.0 mi

Top 39%
×9story building
+123ft-9ft

Overall

2543

Males

1786

M45-49

92

6M→8M

6.0 - 8.0 mi

Top 34%
×12story building
+166ft-53ft

Overall

2208

Males

1622

M45-49

84

8M→9.6M

8.0 - 9.6 mi

Top 58%
×13story building
+68ft-193ft

Overall

3808

Males

2306

M45-49

121

9.6M→10M

9.6 - 10.0 mi

Top 41%
×2story building
+0ft-24ft

Overall

2697

Males

1826

M45-49

94

10M→10.5M

10.0 - 10.5 mi

Top 51%
×6story building
+1ft-73ft

Overall

3369

Males

2205

M45-49

116

10.5M→12M

10.5 - 12.0 mi

Top 32%
×21story building
+280ft-26ft

Overall

2130

Males

1498

M45-49

78

12M→Finish

12.0 - 13.1 mi

Top 37%
×7story building
+14ft-89ft

Overall

2446

Males

1674

M45-49

85

Passing Analysis

Category:
Athletes Passed
1134*
Passed By
397
Net Change
+737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3284
2M → 4M34539+306#3284#2978
4M → 6M22337+186#2978#2792
6M → 8M230*68+162#2792#2630
8M → 9.6M26181-155#2630#2785
9.6M → 10M6010+50#2785#2735
10M → 10.5M317-14#2735#2749
10.5M → 12M19324+169#2749#2580
12M → Finish54*21+33#2580#2547
TOTALS1134*397+737

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events