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SF MARATHON 2026

Sangduk Nam

Bib: 8723•M•Age: 38

Arcadia, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 38%
Gender (Male)
#0 / 5052
Top 43%
Division (M35-39)
#0 / 717
Top 42%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
21:01
Rank: #5124
Start → 2M
21:01 | 10:30/mi
4M
41:59
Rank: #4933 (+191)
2M → 4M
20:58 | 10:29/mi
6M
1:01:54
Rank: #4479 (+454)
4M → 6M
19:55 | 9:57/mi
8M
1:21:37
Rank: #4326 (+153)
6M → 8M
19:43 | 9:51/mi
9.6M
1:37:57
Rank: #4059 (+267)
8M → 9.6M
16:20 | 10:12/mi
10M
1:41:09
Rank: #4136 (-77)
9.6M → 10M
3:12 | 8:01/mi
10.5M
1:47:47
Rank: #4067 (+69)
10M → 10.5M
6:38 | 13:16/mi
12M
2:01:29
Rank: #3878 (+189)
10.5M → 12M
13:42 | 9:08/mi
14M
2:21:43
Rank: #3686 (+192)
12M → 14M
20:14 | 10:07/mi
16M
2:40:21
Rank: #3677 (+9)
14M → 16M
18:38 | 9:19/mi
18M
2:58:58
Rank: #3375 (+302)
16M → 18M
18:37 | 9:19/mi
20M
3:17:40
Rank: #3160 (+215)
18M → 20M
18:42 | 9:21/mi
22M
3:36:21
Rank: #3047 (+113)
20M → 22M
18:41 | 9:20/mi
24M
3:56:41
Rank: #2865 (+182)
22M → 24M
20:20 | 10:10/mi
Finish· 26.22 mi
4:18:07
Rank: #2722 (+143)
24M → Finish
21:26 | 9:40/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:21:43
Pace10:07 /mi
2nd Half✓ Faster
Distance12.22 mi
Time1:56:24
Pace9:32 /mi
📊Negative Split: 17.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:57:1121:0110:3021:01
10:30
-
4M
4.00 mi06:18:0941:5910:3020:58
10:29
-0:01
6M
6.00 mi06:38:041:01:5410:1919:55
9:57
-0:32
8M
8.00 mi06:57:471:21:3710:1219:43
9:51
-0:06
9.6M
9.60 mi07:14:071:37:5710:1216:20
10:12
+0:21
10M
10.00 mi07:17:191:41:0910:073:12
8:01
-2:11
10.5M
10.50 mi07:23:571:47:4710:166:38
13:16
+5:15
12M
12.00 mi07:37:392:01:2910:0713:42
9:08
-4:08
14M
14.00 mi07:57:532:21:4310:0720:14
10:07
+0:59
16M
16.00 mi08:16:312:40:2110:0118:38
9:19
-0:48
18M
18.00 mi08:35:082:58:589:5718:37
9:19
0:00
20M
20.00 mi08:53:503:17:409:5318:42
9:21
+0:02
22M
22.00 mi09:12:313:36:219:5018:41
9:20
-0:01
24M
24.00 mi09:32:513:56:419:5220:20
10:10
+0:50
Finish
26.22 mi09:54:174:18:079:5121:26
9:40
-0:30

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

8:01 /mi

Average Pace

9:51 /mi

Slowest Pace

13:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:54

7% of race

Time at Steady Pace

3:12:36

75% of race

Time at Slower Pace

48:37

19% of race

Average Pace: 9:51 /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...
0mi6.6mi13.1mi19.7mi26.2mi
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 mi05:57:1121:0110:3021:01
10:30
#5124
4M
4.00 mi06:18:0941:5910:3020:58
10:29
#4933
6M
6.00 mi06:38:041:01:5410:1919:55
9:57
#4479
8M
8.00 mi06:57:471:21:3710:1219:43
9:51
#4326
9.6M
9.60 mi07:14:071:37:5710:1216:20
10:12
#4059
10M
10.00 mi07:17:191:41:0910:073:12
8:01
#4136
10.5M
10.50 mi07:23:571:47:4710:166:38
13:16
#4067
12M
12.00 mi07:37:392:01:2910:0713:42
9:08
#3878
14M
14.00 mi07:57:532:21:4310:0720:14
10:07
#3686
16M
16.00 mi08:16:312:40:2110:0118:38
9:19
#3677
18M
18.00 mi08:35:082:58:589:5718:37
9:19
#3375
20M
20.00 mi08:53:503:17:409:5318:42
9:21
#3160
22M
22.00 mi09:12:313:36:219:5018:41
9:20
#3047
24M
24.00 mi09:32:513:56:419:5220:20
10:10
#2865
Finish
26.22 mi09:54:174:18:079:5121:26
9:40
#2722
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 57%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:50

Segment Time

10:56/mi

Pace

0.90 mi

Distance

Overall

4116

Men

3196

Division

444

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi512438525353013(Top 42%)2466(Top 49%)330(Top 46%)
4M4.00 mi2.00 mi4933+1913739+113522+134817(Top 67%)3673(Top 73%)504(Top 70%)
6M6.00 mi2.00 mi4479+4543464+275480+423775(Top 53%)3014(Top 60%)404(Top 56%)
8M8.00 mi2.00 mi4326+1533372+92465+153951(Top 55%)3134(Top 62%)428(Top 60%)
9.6M9.60 mi1.60 mi4059+2673202+170436+293393(Top 47%)2727(Top 54%)371(Top 52%)
10M10.00 mi0.40 mi4136-773241-39443-75785(Top 81%)4255(Top 84%)596(Top 83%)
10.5M10.50 mi0.50 mi4067+693197+44437+63554(Top 50%)2818(Top 56%)396(Top 55%)
12M12.00 mi1.50 mi3878+1893075+122422+153013(Top 42%)2466(Top 49%)330(Top 46%)
14M14.00 mi2.00 mi3686+1922944+131401+212827(Top 39%)2322(Top 46%)309(Top 43%)
16M16.00 mi2.00 mi3677+92932+12406-53861(Top 54%)2963(Top 59%)424(Top 59%)
18M18.00 mi2.00 mi3375+3022710+222374+321511(Top 21%)1272(Top 25%)171(Top 24%)
20M20.00 mi2.00 mi3160+2152544+166353+211867(Top 26%)1537(Top 30%)216(Top 30%)
22M22.00 mi2.00 mi3047+1132446+98341+122388(Top 33%)1881(Top 37%)260(Top 36%)
24M24.00 mi2.00 mi2865+1822298+148313+281974(Top 28%)1531(Top 30%)221(Top 31%)
Finish26.22 mi2.22 mi2722+1432189+109304+91872(Top 26%)1470(Top 29%)203(Top 28%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 42%
×1human
+6ft-11ft

Overall

3013

Males

2466

M35-39

331

2M→4M

2.0 - 4.0 mi

Top 67%
×4stories
+75ft-70ft

Overall

4817

Males

3673

M35-39

509

4M→6M

4.0 - 6.0 mi

Top 53%
×5stories
+71ft-18ft

Overall

3775

Males

3014

M35-39

409

6M→8M

6.0 - 8.0 mi

Top 55%
×9stories
+106ft-21ft

Overall

3951

Males

3134

M35-39

431

8M→9.6M

8.0 - 9.6 mi

Top 47%
×13stories
+117ft-177ft

Overall

3393

Males

2727

M35-39

372

9.6M→10M

9.6 - 10.0 mi

Top 81%
×1story
+17ft-12ft

Overall

5785

Males

4255

M35-39

600

10M→10.5M

10.0 - 10.5 mi

Top 50%
×9stories
+0ft-102ft

Overall

3554

Males

2818

M35-39

398

10.5M→12M

10.5 - 12.0 mi

Top 42%
×18stories
+304ft-125ft

Overall

3013

Males

2466

M35-39

331

12M→14M

12.0 - 14.0 mi

Top 39%
×9stories
+99ft-125ft

Overall

2827

Males

2322

M35-39

310

14M→16M

14.0 - 16.0 mi

Top 54%
×9stories
+124ft-78ft

Overall

3861

Males

2963

M35-39

425

16M→18M

16.0 - 18.0 mi

Top 21%
×8stories
+106ft-45ft

Overall

1511

Males

1272

M35-39

171

18M→20M

18.0 - 20.0 mi

Top 26%
×3stories
+52ft-26ft

Overall

1867

Males

1537

M35-39

216

20M→22M

20.0 - 22.0 mi

Top 33%
×21stories
+17ft-266ft

Overall

2388

Males

1881

M35-39

261

22M→24M

22.0 - 24.0 mi

Top 28%
×3stories
+70ft-85ft

Overall

1974

Males

1531

M35-39

221

24M→Finish

24.0 - 26.2 mi

Top 26%
~flat
+2ft-2ft

Overall

1872

Males

1470

M35-39

203

Passing Analysis

Category:
Athletes Passed
2736*
Passed By
334
Net Change
+2402
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5124
2M → 4M256*65+191#5124#4933
4M → 6M4628+454#4933#4479
6M → 8M170*17+153#4479#4326
8M → 9.6M276*9+267#4326#4059
9.6M → 10M380-77#4059#4136
10M → 10.5M7910+69#4136#4067
10.5M → 12M1978+189#4067#3878
12M → 14M198*6+192#3878#3686
14M → 16M109*100+9#3686#3677
16M → 18M3042+302#3677#3375
18M → 20M215*0+215#3375#3160
20M → 22M126*13+113#3160#3047
22M → 24M191*9+182#3047#2865
24M → Finish150*7+143#2865#2722
TOTALS2736*334+2402

* 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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